Houston Employees

Houston Staff Resumes

Petroleum Engineering

Photo of Herman Guido Acuña, P.E. President

Herman Guido Acuña, P.E. , President

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Trilingual – Fluent in English, Spanish and German
  • International Relations
  • Management Advisory
Education
BS degree, petroleum engineering, University of Tulsa, 1987 MS degree, petroleum engineering, University of Tulsa, 1989 Various Exxon-Internal and industry-sponsored seminars and short courses

Summary of Areas of Expertise
Over 30 years of diverse experience in evaluating oil and gas properties, more than 20 years with Ryder Scott.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Trilingual – Fluent in English, Spanish and German
  • International Relations
  • Management Advisory

Education

BS degree, petroleum engineering, University of Tulsa, 1987
MS degree, petroleum engineering, University of Tulsa, 1989
Various Exxon-Internal and industry-sponsored seminars and short courses

Summary of Areas of Expertise

Over 30 years of diverse experience in evaluating oil and gas properties, more than 20 years with Ryder Scott. Served as group leader in Ryder Scott’s Houston Office, coordinating major international projects. Currently Executive Vice President and a member of the Board of Directors.

Management Advisor: Experienced in management planning and decision-making processes amidst a climate of competition and risk. Provided advice in the areas of economic analysis, strategic planning, negotiation strategies, contract evaluation and conflict resolution. Coordinated large high-stake projects in the Caspian and Middle East regions. This experience includes both national oil companies and private companies. Recent examples include:

  • Management Advisor to the Abu Dhabi National Oil Company (ADNOC) on various confidential matters of National interest..
  • Management Advisor to the Abu Dhabi National Oil Company (ADNOC) on various confidential matters of National interest.
  • Management Advisor to the Empresa Colombiana de Petroleo (ECOPETROL) on matters related to ensuring gas supplies and monetization.
  • Management Advisor to the Kashagan Consortium (Agip, ExxonMobil, TFE, Shell, BG, ConocoPhillips, Inpex) on commercialization and contractual issues.
  • Management Advisor to Agip Ecuador for conflict resolution with Ministry of Energy.
  • Management Advisor to Agip KCO on contractual matters related to the Kashagan discovery.

Integrated Reservoir Studies: Ten years’ experience in reservoir studies geared towards the optimization of field development through state-of-the-art integration of various earth sciences. Integrated geostatistical, geophysical, geological and engineering data into reservoir simulation models to optimize reserve recoveries, extend production plateaus and maximize field values.

Reservoir Simulation: More than ten years of reservoir simulation experience with oil and gas fields throughout the world. Simulation experience includes full-field and segment modeling of carbonate and clastic reservoirs, naturally fractured reservoirs, horizontal well simulation, heavy oil simulation, gas and water injection and others. Some of the major simulation studies include:

  • Management Advisor to Agip KCO on contractual matters related to the Kashagan discovery.
  • Abqaiq Arab-D full-field model study – Saudi Arabia
  • Abqaiq Hanifa fractured reservoir horizontal well field development – Saudi Arabia
  • South ‘Uthmaniyah, Ghawar field facility demothballing study – Saudi Arabia
  • Hawiyah, Ghawar field facility demothballing study – Saudi Arabia
  • Fanny field early water production study – Ecuador
  • Dacion heavy oil and horizontal well development study – Venezuela
  • Cañadon Alfa gas reserve simulation study – Argentina
  • Reef Exploration Play simulation model – Turkmenistan
  • Various gas fields in offshore waters of Trinidad and Tobago

Probabilistic Analysis: Evaluation of reserves, field performance and economics using probabilistic methods. These studies involved integration of independent geologic and engineering variable distributions to arrive at a combined probabilistic project outcome distribution. Some of these studies include:

  • Probabilistic analysis of the exploratory gas potential in offshore Trinidad for the development of Trinidad & Tobago’s Gas Master Plan.
  • Evaluation of the Kashagan field (Kazakhstan) reserves, production and economic outcomes utilizing probabilistic techniques.
  • Probabilistic analysis of two major concessions in Turkmenistan, appraising 3P reserves as well as exploration potential.
  • Probabilistic evaluation of reserves, production forecasts and economic analysis of all major reservoirs and fields in Northern Kuwait.
  • Reservoir potential study of the Oued Zine, Sbaa,  Bon Haidi, Hassi Ilaton and other fields – Algeria
  • Probabilistic analysis of project outcome Utalgi and North Shigaya fields – Azerbaijan
  • Probabilistic analysis of project outcome Commonwealth and BMB projects – Azerbaijan
  • A probabilistic approach to evaluating waterflooding performance, Diadema field – Argentina
  • Probabilistic evaluation of the Cotton Valley Play, Louisiana – USA
  • Hydraulic Fracture optimization statistical study, Carthage – USA
  • Abnormally pressured gas drilling program evaluation, South Texas – USA

Reserves and Economic Evaluations: This experience includes conducting reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) definitions. Expert in the evaluation of reserves and future income under a variety of fiscal terms and model contracts such as Production Sharing Contracts and Agreements(PSC & PSA), Joint Venture Contracts and Agreements (JVC & JVA), Risk Sharing and Service Agreements. Economic evaluation experience includes:

  • Detailed full-field deterministic and probabilistic economic analysis
  • Economic evaluation of Production Sharing Contracts and Joint Venture Agreements
  • Algeria
  • Azerbaijan
  • China
  • Kazakhstan
  • Venezuela
  • Turkmenistan
  • United States Securities and Exchange Commission filings
  • Oil and gas asset sales, purchases and acquisitions
  • Asset management and prioritization studies
  • Project feasibility studies
  • Single well economic analysis

Field Operations: Three years operations experience in tight and abnormally pressured gas fields in Texas, USA. Activities included 1) active drilling program, 2) gas condensate recovery studies, 3) massive hydraulic fracturing and 4) workover and plug and abandon programs.

Other Areas of Proficiency

Well Test Analysis: Conducted numerous well test analyses for oil and gas wells. Evaluations included determination of flow boundaries, dual porosity parameters and interference tests.

Artificial Lift Evaluation: Conducted several studies on gas lift optimization while obtaining Master’s degree at the University of Tulsa. Developed software for the design of artificial lift methods.

Retrograde Gas Reservoir Studies: Experienced in the evaluation of the effects of retrograde condensation on well productivity and reservoir recovery.

Summary of Employment

Ryder Scott Co. LP     1997 to Present
President
Joined Ryder Scott Company in 1997 as a reservoir engineer. Completed various reservoir and economic evaluations in Algeria, Argentina, Azerbaijan, Bolivia, Colombia, Ecuador, Gulf of Mexico, Kazakhstan, Perú, Turkmenistan, Venezuela and others. Support to various financial institutions for project financing of various infrastructure projects and the sales and acquisition of oil and gas properties. Prospect venture analysis for Venezuela’s third operating agreement round. Study included simulation of horizontal well performance in heavy oil reservoirs with water coning tendencies. Reservoir simulation study of the Fanny field (Ecuador) to determine the impact of flow rates on ultimate reserve recoveries. This “quick look” simulation study integrated the latest 3-D seismic, geological and engineering interpretation of the field. Review and audit of the Cañadon Alfa Complex (Argentina) Eclipse simulation model to estimate future gas flowstream potential and reserves. Conducted technical evaluation of tenders leading to agreement between state-owned company (UAE) and private shareholders. Currently President and member of the Board of Directors.

Exxon Company, USA, Houston Production Organization     1994 to 1997
Maintained continuous drilling rig line of deep abnormally pressured gas wells in faulted Frio reservoirs. Proposed and drilled several prospects, including directional and S-turn wells to optimize pay stacking in different fault blocks. Initiated successful well workover and plug and abandon programs to increase production volumes and reduce idle wellbore count. Constructed a full field 3-D reservoir simulation model to develop reservoir depletion strategies. The model was constructed using state-of-the art geostatistical techniques, laboratory PVT data and buildup and core analysis information. This study emphasized a proactive plan for future facilities and drilling needs, conducting reservoir simulation studies to evaluate gas retrograde condensate impact on long-term well productivity and reserve potential. Conducted tight gas reservoir simulation studies to evaluate optimum development drilling spacing in Carthage field. Optimized hydraulic fracture design as a function of wellbore spacing which resulted in significant well completion cost reductions. Evaluation included simulation of horizontal versus vertical well redevelopment of the field.

Exxon Production Research, Reservoir Division – Engineering Studies     1989 to 1994
Improved reservoir simulation capabilities for dual-porosity and dual-permeability reservoirs. Designed methodology to construct transfer functions for fluid transport between rock matrix and fractures in naturally fractured reservoirs. Lead engineer in horizontal well project to improve simulation capabilities. Studies included investigation of wellbore friction pressure losses, development of pressure drawdown functions for gas and water coning and well productivity. Implemented technology to evaluate horizontal well applications in various fields around the world. Conducted 3-D reservoir simulation studies of various fields in Saudi Arabia. Developed future field development strategies to extend field production plateau, minimize secondary gas cap impact, evaluate reserve potential and optimize drilling program. Traveled extensively to the Middle East to transfer technology and project results. Conducted reservoir surveillance studies in various fields. This work included tracking gas/oil and water/oil contacts using cased hole log; buildup and drawdown pressure test analysis; water coning versus water front movement in thin oil columns; and, decline analysis.

Computer Enhanced Artificial Lift Consulting Inc., Tulsa, Oklahoma     1988 to 1989

Geographical Areas of Experience

Africa and Middle East
Algeria
Egypt
Saudi Arabia
Kuwait
UAE

Caspian Region
Azerbaijan
Kazakhstan
Turkmenistan

Europe
North Sea gas fields
Onshore Germany oil fields

South America
Argentina
Bolivia
Colombia
Ecuador
Peru
Venezuela

North America
Texas
Gulf of Mexico

Far East
China
Australia

Professional Associations

Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers (SPE)
Association of International Petroleum Negotiators (AIPN)
Tau Beta Pi (Honorary Engineering Society)
Phi Eta Sigma (Honorary Freshman Society)

Publications

SPE Paper 78675 “Adapting Probabilistic Methods to Conform to Regulatory Guidelines,” Updated publication of SPE Paper 63202, August 2002 SPE Reservoir Evaluation & Engineering Journal.

SPE Paper 63202 “Adapting Probabilistic Methods to Conform to Regulatory Guidelines,” this paper was prepared for presentation at the 2000 SPE Annual Technical Conference and Exhibition held in Dallas, Texas, 1-4 October 2000.

SPE Paper 52961 “Quantification of Economic Damages Resulting From a Breach of Joint Venture or Joint Operating Agreement,” this paper was prepared for presentation at the 1999 SPE Hydrocarbon Economics and Evaluation Symposium held in Dallas, Texas, 20-23 March 1999.

SPE Paper 24839 “Modeling of Gas Rates Through 1-in., Nitrogen-Charged Gas-Lift Valves,” copyright 1992, Society of Petroleum Engineers Inc. 67th Annual Technical Conference and Exhibition of the Society of Petroleum Engineers held in Washington, DC, October 4-7

Seminars and Conferences

Speaker at “5th Monetizing Stranded Gas Reserves,” December 4-6, 2002 Houston, Texas.  Topic:State-of-the-Art Reinjection Methods: Benefits, Challenges and Economics

Instructor at various SPE Applied Technology Workshops (ATW) on “Probabilistic Assessment of Reserves,” 2000 & 2001 in Houston, Texas; 2002 Caracas, Venezuela.

Photo of Deji A. Adeyeye, P.E. Senior Vice President – Group Coordinator

Deji A. Adeyeye, P.E. , Senior Vice President – Group Coordinator

Key Attributes and Proficiencies
  • Reserves and Economic Evaluations
  • Integrated Studies
  • Reservoir Management
Education
BS degree, chemical engineering, University of Lagos, 2000 MS degree, petroleum engineering, Texas A&M University, 2003 MBA degree, business administration, Rice University, 2011

Summary of Areas of Expertise
Experienced in project management and economics, integrated oil and gas field development, planning, budgeting and reservoir management.…Read More

Key Attributes and Proficiencies

  • Reserves and Economic Evaluations
  • Integrated Studies
  • Reservoir Management

Education

BS degree, chemical engineering, University of Lagos, 2000
MS degree, petroleum engineering, Texas A&M University, 2003
MBA degree, business administration, Rice University, 2011

Summary of Areas of Expertise

Experienced in project management and economics, integrated oil and gas field development, planning, budgeting and reservoir management. Skilled in data room technical and economic due diligence for property acquisitions and divestitures. Proficient user of various petroleum software and databases.

Summary of Employment

Ryder Scott Co. LP     2014 to Present
Senior Vice President – Group Coordinator
Evaluate petroleum reserves, field performance and economics applying various engineering techniques. Emphasis on reserves estimation in accordance with U.S Securities and Exchange Commission and Society of Petroleum Engineers Petroleum Reserves Management System. Analyze field performance and economics.

Murphy Oil Corp.     2010 to 2014
Subsurface Team Leader
Planned and managed non-operated offshore assets.  Maintained proper records of reserves and planned budgets for subsurface teams.  Prepared project-sanction documents and represented the company at commercial and subsurface subcommittee meetings.  Led subsurface and commercial aspects of field development projects leading to proposed development plans.

Devon Energy Corp.     2008 to 2010
Senior Reservoir Engineer
Evaluated assets for divestiture in the Gulf of Mexico.  Managed technical side of field development to grow production and increase reserves in new wells.  Performed reserves evaluations and economics for exploration prospects.  Provided technical justification for proved reserves.  Managed regulatory year-end reserves and resources processes.

BP America Inc.     2004 to 2008
Petroleum Engineer
Performed gas compression studies to reduce surface operating pressures. Prepared commercial and subsurface requirements for recompletions and side-track options. Designed deepwater depletion plans. Performed reservoir simulation and onshore well interventions. Developed method to adjust residual oil saturation for fractional flow-curve matching in waterflood projects. Presented training classes in completion efficiency. Performed pressure transient analyses for a subsurface assessment of near wellbore damage, permeability and reservoir size.

Texas A&M University     2001 to  2003
Teaching Assistant
Constructed thesis on the effects of liquid build-up due to gas condensate damage in hydraulically fractured wells. Implemented multiple reservoir simulation technologies. Lectured on petrophysics and numerical methods. Performed core laboratory analysis to determine petrophysical properties.

Addax Petroleum Corp.     1999 to 2001
Production Engineer Trainee
Performed subsurface field surveillance and monitored daily production as a part of asset management. Identified recompletion and sidetrack opportunities for numerous fields offshore the shelf of Nigeria.

Chevron-Texaco Nigeria Ltd.     1998
Reservoir Engineering Co-op
Performed well optimization and deliverability evaluations for asset development projects. Applied fundamental software relevant to reservoir engineering and the petroleum industry.

Geographical Areas of Experience

United States
Offshore Gulf of Mexico
Prudhoe Bay, Alaska
Permian Basin, Texas
Maverick Basin, Texas
Williston Basin, North Dakota
Denver-Julesberg (DJ) Basin, Colorado
Texas-Louisiana Salt Basin

International
Eastern Canada
Jeanne D’Arc Basin
Nigeria
Gulf of Guinea
Republic of Congo
Congo Basin, West Africa
Trinidad
Columbus Basin
United Kingdom
Faeroe-Shetland Basin, UK North Sea
Colombia
Middle Magdelena Basin

Professional Associations

Member, Society of Petroleum Engineers (SPE)
Member, Pi Epsilon Tau, petroleum engineers’ honor society
Licensed Professional Engineer, P.E., State of Texas, License No. 109670
Project Management Professional, PMP, Project Management Institute
Member, World Affairs Council of Houston)

Photo of Freddy Alvarado, Ph.D. Senior Petroleum Engineer

Freddy Alvarado, Ph.D. , Senior Petroleum Engineer

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Numerical Simulation
  • Reserves Audits and Certifications
  • Reservoir Engineering
  • Mentoring/Coaching
  • Fluent in English and Spanish
Education
BS degree, Petroleum Engineering, Universidad Central de Venezuela, 1999 MS degree, Petroleum and Natural Gas Engineering, PennState University, 2001 Doctor of Philosophy degree, Petroleum and Natural Gas Engineering, PennState University, 2005

Summary of Areas of Expertise
Dynamic and accomplished Petroleum Engineer with more than 20 years’ diverse experience in reservoir engineering and economic analysis.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Numerical Simulation
  • Reserves Audits and Certifications
  • Reservoir Engineering
  • Mentoring/Coaching
  • Fluent in English and Spanish

Education

BS degree, Petroleum Engineering, Universidad Central de Venezuela, 1999
MS degree, Petroleum and Natural Gas Engineering, PennState University, 2001
Doctor of Philosophy degree, Petroleum and Natural Gas Engineering, PennState University, 2005

Summary of Areas of Expertise

Dynamic and accomplished Petroleum Engineer with more than 20 years’ diverse experience in reservoir engineering and economic analysis. Petroleum leader with career expertise in developing and managing client relationships at difference levels by engaging multiple stakeholders and driving business performance. Adept in providing engineering advice, assurance and leadership to diverse technical teams through coaching and mentoring. Demonstrated ability to build positive, productive relationships with local and remote teams across the organization. Commended communication and influential skills to achieve and deliver results. World-class professional leader with international experience, having lived and worked abroad in a multicultural environment.

Summary of Employment

Ryder Scott Co. LP     2021 to Present
Senior Petroleum Engineering
Evaluate petroleum reserves, field performance and economics applying various engineering techniques. Emphasis on reserves estimation in accordance with U.S Securities and Exchange Commission and Society of Petroleum Engineers Petroleum Reserves Management System.

Miller and Lents, Ltd.     2017 to 2020
Senior Reservoir Consultant; Houston, Texas
Delivered oil and gas reserves evaluations and economic determinations of domestic and international projects by preparing internal reserve reports and coordinating reserve booking activities.

  • Delivered reserves auditing to deep water projects in the Gulf of Mexico while providing technical advice to Anadarko Oil Company.
  • Implemented new tools to efficiently evaluate Production Sharing Agreement (PSA) evaluations in the company.
  • Established successful partnership with new global clients (ENI & Ecopetrol) by creating organic opportunities for reserves evaluation.
  • Reduced cycle time and potential errors on reserves evaluations by automatizing reserves evaluations.
  • Provided directions and coaching to other team members.

Chevron     2016 to 2017
Reserves Advisor and Technology/IP Manager; Houston, TX
Directed performance and reserves assurance to multiple Latin American Countries. Oversaw reserves booking assurance for Trinidad, Colombia, Brazil Venezuela, and Argentina.

  • Led continuous improvement on Latin America reserves process and ensured reserves alignment with the Corporate Reserves Group.
  • Aligned Latin America Reservoir Management (RM) with Global RM.
  • Led global Chevron Reserves Coordinator community of practice to ensure best practice on the Reserves Community.
  • Ensured new technology deployment in Latin American.
  • Provided mentoring and coaching to direct reports while building a clear career path.

Chevron Saudi Arabia     2014 to 2015
Reserves Coordinator, Kuwait
Directed, implemented a coordinated reserves booking process by coaching and leading a multidisciplinary team. Achieved a significant reserves booking and ensured reserves compliance.

  • Booked over 100 MMSTB proved reserves for the business unit.
  • Supervised reserves bookings for eight carbonate and sandstone fields in Saudi Arabia and Kuwait. Improved partner relationships with stakeholders and government agencies.
  • Worked with multiple stakeholders to preserve project value on reserves replacement and major capital projects.
  • Streamlined the reserves booking process coordination efforts between the business unit and the corporate reserves group. Provided technical reviews and recommendations for steamflood booking strategy.
  • Ensured safety to the business unit by creating a business continuity plan for the Business Unit.

Chevron     2014 to 2015
Chemical EOR Project Manager; Houston, TX
Implemented Enhanced Oil Recovery Process to ensure business advantage while negotiating contract extension for multiple fields.

  • Designed and delivered chemical enhanced oil recovery (CEOR) processes.
  • Subsurface Lead for IOR/EOR evaluations of Latin American assets.
  • Evaluated potential CEOR opportunities for Organic Resource Opportunities (ORO).
  • Provided recovery factors, production forecasts and numerical analysis for South America.

BP     2004 to 2011
Reservoir Engineer; Houston, TX

  • Designed and delivered BP’s new technologies (LoSal & BrightWater) for increasing recovery factors in Argentinian and Egyptian fields.
  • Conducted heavy oil thermal/compositional simulations to design pilot alternatives for several Venezuelan fields in the Cerro Negro area of the Orinoco Belt.
  • Played a key role by acting as a technology link between the Venezuela business unit and BP’s exploration and technology Group (EPTG).

Geographical Areas of Experience

Africa & Middle East
Egypt
Kuwait
Saudi Arabia
West Ghana

Europe and Former Soviet Union
Poland
Romania

North America
Gulf of Mexico
Permian

Central and South America
Argentina
Brazil
Colombia
Trinidad and Tobago
Venezuela

Central and Southeast Asia
Azerbaijan

Professional Associations

Society of Petroleum Engineers
Reservoir Study Group – SPE Chapter
Chairman of the Reservoir study group – Society of Petroleum Engineers (SPE), Houston (2015)
Core Analysts (SCA) member (2005-2007)

Teaching and Presentations

PSU Teaching assistant, State College, Pennsylvania 2000-2005
Universidad Central de Venezuela, Associate Professor, Caracas, Venezuela, 1999-2000
Universidad Central de Venezuela, Teaching assistant, Caracas, Venezuela, 1997-1999

Publications And Presentations

  • Anomalous Two-Phase Flow Behavior in Fractured Sandstone Explained Using X-ray Computed Tomography. Denmark 2006
  • Visualization of Three Phase Occupancy in Fractured Sandstone Using x-ray Computed Tomography. Norway 2006
  • Optimal Coarsening of 3D Reservoir Models for Flow Simulation. SPE95759. June 2005 SPE Annual Technical Conference and Exhibition.
  • Three-phase flow in fractures using MCT. PhD. Thesis 2005
  • Visualization of Three Phases in Porous Media Using MCT. SPWLA Journal of formation evaluation and reservoir description. Vol. 45 December 2004
  • Visualization of Three Phases in Porous Media Using MCT. SCA. Pau – France. September 2003
  • Penn State University: Determination of Pore-Scale Distribution of Three – Phases in Porous Media Using MCT. Thesis 2002
  • Universidad Central de Venezuela (UCV): Reservoir Management of Marginal Fields” Bs. Thesis 1998

Chevron Publications And Presentations

  • 2016: “PZ Reservoir strategy for developing tight carbonate reservoirs” – White Paper
  • 2013: Reservoir Management Forum presentation: “Evaluation of Chemical EOR as Recovery Mechanism for Viscous Oil”
  • 2012: Heavy Oil Symposium presentation : “Evaluation of Chemical EOR as Recovery Mechanism for Heavy Oil”
  • 2012: Phase 1 Project framing for low salinity – White paper

Awards

  • 2017: SPE Gulf Coast Section Reservoir Study Group Chairman.
  • 2016: SPE GCS Reservoir Study Group Vice Chair: Leader for the SPE Gulf Coast Section Reservoir Study Group (RSG). Lead multiple forums for Petroleum Engineers and Geoscientists to network and disseminate the knowledge and technology needed to achieve many objectives of Reservoir Management, including understanding risk, increasing production and reserves, and maximizing recovery.
  • 2014: SPE GCS recognition as Outstanding Group of the Year. Recognition of hard work and dedication as key member
  • 2013 RM Excellence Award: “Extensive evaluation by a novel approach to progress reserves through the application of Chemical EOR (CEOR) techniques”
  • 2013: Project Management Champion Recognition award
  • 2012: Technical Chairman Session for SPE Improved Oil Recovery conference. Tulsa, OK
  • 2005: Award by the Society of Core Analysts (SCA) by 3rd place on a best paper.
Photo of Carlos E. Alvarez Senior Reservoir Engineer

Carlos E. Alvarez , Senior Reservoir Engineer

Key Attributes and Proficiencies
  • Development Plans for Gas & Oil Fields
  • Reserves/Resources Evaluation
  • Mature Field Development
  • Improved Oil Recovery Evaluations
Education
BS degree, Mechanical Engineering, University of Zulia, Maracaibo, Venezuela. 1989 MBA, Universidad Católica Andres, Venezuela. 1995 Special program for upgrading to reservoir engineering, CIED-PDVSA, Prto.…Read More

Key Attributes and Proficiencies

  • Development Plans for Gas & Oil Fields
  • Reserves/Resources Evaluation
  • Mature Field Development
  • Improved Oil Recovery Evaluations

Education

BS degree, Mechanical Engineering, University of Zulia, Maracaibo, Venezuela. 1989
MBA, Universidad Católica Andres, Venezuela. 1995
Special program for upgrading to reservoir engineering, CIED-PDVSA, Prto. La Cruz, Venezuela.1996
Technician in Structural Constructions, Colegio Universitario, Maracaibo, Venezuela. 1983

Summary of Areas of Expertise

Upstream oil and gas senior consultant with more than 25 years of experience. Skilled in the evaluation and optimization of oilfield development plans, with career expertise in the oil and gas industry in companies and institutions in Venezuela, Mexico, Norway, and US. Extensive experience in improved oil recovery/enhanced oil recovery technical feasibility appraisals for heavy and extra heavy oil reservoirs.

Summary of Employment

Ryder Scott Co. LP     2021 to Present
Senior Reservoir Engineer
Extensive reservoir and reserves evaluations experience in applying traditional engineering practices to determine oil and gas recoverable resources and reserves. Reservoir engineering practices include performance analysis, volumetric analysis, material-balance calculations, PVT analysis, and other applications. Multiple years of experience in such areas as secondary and tertiary recovery, as well as unconventional shale plays. Work consistently with and manage multidisciplinary teams to assess and optimize reservoir performance. Perform probabilistic reserves evaluations, involving integration of independent geological and reservoir variables distributions to arrive at a combined project outcome distribution.

Gaffney, Cline & Associates (Baker Hughes Company)     2011 to 2020
Principal Advisor – Project Manager, Houston, Texas
Responsible for leading teams to deliver projects in Gulf of Mexico, Mexico, Colombia, Trinidad, Suriname, Offshore Brazil, Bolivia, and Argentina. Evaluated technical feasibility of production technologies for field development (IOR/EOR/Polymer, Steam, CO2 Injection). Coordinated efforts with cross-functional team members to confirm project produces the required deliverables of quality, within the specified constraints of time and cost. Evaluated reserves and resources under PRMS and SEC regulations for oil and gas assets in Argentina, Brazil, Colombia, Ecuador, Mexico, US, Trinidad, and Suriname.

Baker Hughes Reservoir Development Services (RDS)     2011
Senior Reservoir Engineer, Mexico
Provided senior reservoir engineer analysis to support the corporation exploration and development activities. Functioned in a key role for the shaping of development strategy, evaluating investment opportunities, and optimizing reservoir performance for growing project portfolios. Executed design and implement well testing, reservoir monitoring, stress measurements, and data acquisition programs to determine continuously improvement and support intellectual property portfolio management activities.

PDVSA-INTEVEP (The R&D Center of PDVSA)     1990 – 2010
Served as IOR advisor for reservoir development in PDVSA East and West Divisions for heavy and extra heavy reservoirs in Maracaibo Lake and the Orinoco Belt. Contributed as IOR instructor for junior reservoir engineers.

 

Geographical Areas of Experience

Africa and Middle East
Abu Dhabi
Kuwait

Europe
Norwegian North Sea

North America
Gulf of Mexico
Mississippi Canyon
Mexico
Texas
    Maverick Basin
    Permian Basin
Texas – Louisiana Salt Basin

Central and South America
Argentina
Bolivia
Brazil
Colombia
Ecuador
Surinam
Trinidad and Tobago
Venezuela

Professional Associations

European Association of Geoscientist and Engineers (EAGE)
Society of Petroleum Evaluation Engineers (SPEE)
Society of Petroleum Engineers (SPE)

Photo of Mario A. Ballesteros, P.E. Managing Senior Vice President – Group Leader

Mario A. Ballesteros, P.E. , Managing Senior Vice President – Group Leader

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Probabilistic Analysis
  • Field Operations and Optimization
  • Bilingual – English and Spanish
Education
BS degree, mechanical engineering, University Of Tulsa, 1991 ME degree, petroleum engineering, University Of Tulsa, 1993 MS degree, finance, Universidad del Meta – Colombia, 2000

Summary of Areas of Expertise
More than 20 years of experience in onshore and offshore oil and gas reservoir and production engineering and operations.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Probabilistic Analysis
  • Field Operations and Optimization
  • Bilingual – English and Spanish

Education

BS degree, mechanical engineering, University Of Tulsa, 1991
ME degree, petroleum engineering, University Of Tulsa, 1993
MS degree, finance, Universidad del Meta – Colombia, 2000

Summary of Areas of Expertise

More than 20 years of experience in onshore and offshore oil and gas reservoir and production engineering and operations. This experience includes primary, secondary and tertiary field production operations, reserves estimation, economic evaluations, artificial lift, and remedial workovers.

Probabilistic Analysis: Evaluation of reserves, contingent and prospective resources, field performances and economics for oil and gas fields using probabilistic methods. Some of these studies include:

    • Probabilistic analysis of the exploratory gas field in offshore Trinidad for Trinidad and Tobago’s future development plan.
    • Probabilistic evaluations of CBM properties in onshore Australia. Application of SPEE Monograph 3 methodology for undeveloped properties.
    • Probabilistic evaluation of the Mississippi Lime unconventional play, USA.
    • Probabilistic evaluations of oil prospects in the North Slope Alaska. Built independent probabilistic model for volume estimation and production forecasting.
    • Probabilistic evaluation and risk assessment of the gas supply for Angola LNG.

Reserves and Economic Evaluations: Conducted reserves evaluations under the Securities and Exchange Commission (SEC) guidelines, the Society of Petroleum Engineers (SPE) and the World Petroleum Congress (WPC) definitions. Expert in evaluation of reserves and future income under different fiscal terms and model contracts such as Production Sharing Contracts and Agreements (PSC & PSA), Joint Venture Contracts and Agreements (JVC & JVA) and Risk Sharing and Service Agreements.

Field Operations and Optimization: Worked on a variety of waterflood and CO2 flood fields with different type of challenges. Implemented infill drilling programs, hydraulic fracturing programs, horizontal drilling recommendations, workover design, water and CO2 injector realignments, pattern balancing and other general related operation issues.

Other Areas of Proficiency

Material Balance Studies: Evaluation of reservoir size and performance in oil and gas fields using material balance techniques.

Nodal Analysis: Evaluation of the impact of gas reserves with different gathering system pressure systems by using nodal analysis techniques.

Field Operations: 5 years’ operations experience in heavy oil reservoirs in the Llanos basin in Colombia and 5 years’ operations experience in CO2 and water floods in oil reservoirs in the Permian Basin. Experience involved surveillance of ongoing projects. Infill drilling, workovers and profile control were routinely conducted.

Summary of Employment

Ryder Scott Co. LP     2006 to Present
Managing Senior Vice President – Group Leader
Performs evaluations of reserves, field performance and economics applying various engineering techniques. This experience includes conducting reserves evaluations under the strict Securities and Exchange Commission guidelines and the Society of Petroleum Engineers and World Petroleum Congress definitions. Expert in the evaluation of reserves and future income under a variety of fiscal terms and model contracts such as production sharing contracts and agreements, joint venture contracts and agreements, risk sharing and service agreements. Economic evaluation experience includes:

  • Detailed full-field deterministic and probabilistic economic analysis
  • Economic evaluation of Production Sharing Contracts and Joint Venture Agreements
  • Oil and gas asset sales, purchases and acquisitions
  • Asset management and prioritization studies
  • Project feasibility studies
  • Single well economic analysis

Performs evaluations of unconventional shale oil and shale gas reservoirs in the Neuquén basin in Argentina. Review economics and build probabilistic models to assess the different well resource ranges and acreage for development of the area. Other probabilistic work in unconventional reservoirs includes evaluations of CBM properties in onshore Australia and evaluations of the Mississippi Lime unconventional play. All oil and gas unconventional evaluations were performed with the application of SPEE Monograph 3 methodology.

Performs technical and economic evaluations of conventional reservoirs in basins around the world. Lead Project Manager for national oil companies such as Ecopetrol and Petroamazonas, coordinating and overseeing reserves certifications annually. Perform reserves certifications for other major companies such as Sinopec, CNOOC, ALNG, MEEI, YPFB, ENI, BP, Chevron and Repsol.

Chevron International E&P Co.     2006
Reservoir Engineer in the Angola gas asset team – South African business unit
Evaluation and optimization of gas networks in the offshore fields of Block 0 and 14 operations.  Assess gas supply risk for LNG plant.

ChevronTexaco North America Upstream     2001 to 2005
Petroleum Engineer, Permian Basin – Midcontinent unit 2003 to 2005
Oversaw company-operated onshore waterflood and CO2 flood production operations of 4300 BOPD and 7100 BOPD from 2003 to 2005. Unit had 300 company-operated wells in a typical carbonate reservoir in New Mexico. Assess reserve estimation for the fields: gross reserves of 26 million barrels of oil for the waterflood lease and 25 million barrels of oil for the CO2 flood lease. Added more than 800,000 barrels of oil reserves by implementing an infill drilling program.

Developed and monitored budget planning and production forecasting for the business unit strategic plan. Performed reserves reviews and surveillance. Project leader in infill drilling program for 15 wells from 2003 and 2004. Program included vertical producer wells, injectors and horizontal producers. Developed budgets and technical support. Identified, designed and provided support in remedial workover programs. Workovers included acid stimulation, sand hydraulic fracturing, zone isolation, casing and packer repairs, artificial-lift conversions, injection conformance and initial completions.

District Petroleum Engineer, Permian Business Unit 2001 to 2002
Supervised 4,500-BOPD company-operated onshore CO2 and waterflood production operations with 146 production and injector wells penetrating a multilayered (11 layers), consolidated sandstone reservoir.

Optimized production through remedial workovers, such as hydraulic fracturing, improved artificial lift, acid stimulating and injection conformance to improve sweep efficiency, etc. Injection conformance includes isolation of zones, increasing injection rates of least-swept zones by stimulation and slick-line work. Reviewed and gave recommendations on two CO2 projects. Conducted engineering analysis to reactivate and realign wells in areas with low sweep efficiency. Wrote, reviewed and modified remedial workover designs.

District Petroleum Engineer, Permian Business Unit     2001 to 2002
Supervised 4,500-BOPD company-operated onshore CO2 and waterflood production operations with 146 production and injector wells penetrating a multilayered (11 layers), consolidated sandstone reservoir.
Optimized production through remedial workovers, such as hydraulic fracturing, improved artificial lift, acid stimulating and injection conformance to improve sweep efficiency, etc.  Injection conformance includes isolation of zones, increasing injection rates of least-swept zones by stimulation and slick-line work. Reviewed and gave recommendations on two CO2 projects.  Conducted engineering analysis to reactivate and realign wells in areas with low sweep efficiency. Wrote, reviewed and modified remedial workover designs.

Chevron Petroleum Co. of Colombia     1995 to 2001
Operations Supervisor, Production Operations – Latin America Upstream unit.
Supervised maintenance and production operations in two primary recovery 30,000-B/D heavy oil fields in Colombia. The reservoir, penetrated by 50 wells, was massive, unconsolidated sandstone.

Managed direct employees and contractors, including accountants, technical assistants, field specialists and field engineers that were in charge of general maintenance of field operations. Planned and executed programs to improve artificial-lift methods. Included rod designs, sub pumping sizing and equipment modifications. Coordinated and supported the environmental management project for the termination of the association contract between the national oil company (Ecopetrol) and Chevron.

Field Supervisor, Production Operations – Latin America Upstream unit
Served as company representative in major workovers programs. Planned and executed major remedial workovers for eleven wells. Received a Chevron award prize for incremental production of 2,400 BOPD in Castilla field and Chichimene field. Received a Chevron award prize for involvement of the deployment of the Chevron environmental and safety policy. Received a Chevron award prize for optimization in the chemical usage in the oil treatment facilities.

Operations Engineer, Production Operations – Latin America Upstream unit
Drilling Engineer Trainee in an exploration well and three development wells on site. Assisted in planning three development wells. Managed production and maintenance operations involving chemical injection, fluid-heat treatment, diesel engines, artificial-lift pumping units, well-pulling jobs, rod-pump changes, rod designs, sub designs and artificial-lift optimizations.

Smurfit Carton De Colombia     1994 to 1995
(Xerox Paper Producing Co.)
Maintenance Engineer
Assisted the production supervisors in planning major maintenance programs for their plants. Supervised maintenance of key equipment such as pressure vessels, turbines, generators, etc.

Argosy Energy International     1994
(Independent oil company)
Maintenance Supervisor
Supervised employees’ key responsibilities. Assisted in designing and executing new projects for production facilities. Assisted in the optimization of the hydraulic artificial-lift program.

Geographical Areas of Experience

Alaska
Angola, offshore
Argentina
Australia, offshore
Bolivia
Colombia
China, onshore and offshore
Ecuador
Gulf of Mexico
Italy
Libya
North Sea
Peru
Trinidad, onshore and offshore
USA, onshore
Venezuela, onshore and offshore

Professional Associations

Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers

Teaching and Presentations

2017, 2016, 2015, 2014 – Taught various company reserves evaluation schools in Colombia on the SEC guidelines: United States Securities and Exchange Commission Title 17, Code of Federal Regulations, Modernization of Oil and Gas Reporting, Final Rule released January 14, 2009 in the Federal Register.

Other presentations and courses include the estimation of reserves under the definitions and disclosure guidelines contained in the Society of Petroleum Engineers (SPE), World Petroleum Council (WPC), American Association of Petroleum Geologists (AAPG), and Society of Petroleum Evaluation Engineers (SPEE) Petroleum Resources Management System (SPE-PRMS).

Coordinator of the in house training for reserves estimation for the Colombian National Oil Company (Ecopetrol) and its subsidiaries. Training and presentations include: Basic Reserves School, Water Flooding, Economic Basics for Reserves, Resource Plays and Probabilistic and Gas Reserves Estimation.

Photo of Pablo A. Castellon Senior Petroleum Engineer

Pablo A. Castellon , Senior Petroleum Engineer

Key Attributes and Proficiencies
  • Reserves and Economic Evaluations
  • Acquisitions
  • Bilingual – English and Spanish
Education
BS degree, civil engineering, Michigan State University, 2009

Summary of Areas of Expertise
Over 10 years of diverse experience in independent oil and gas property evaluations, acquisitions, audits and independent estimations of oil and gas reserves and resources under the reserves definitions and guidelines set by the Securities and Exchange Commission of the United States (SEC) and the Society of Petroleum Engineers - Petroleum Resources Management System (SPE-PRMS).…Read More

Key Attributes and Proficiencies

  • Reserves and Economic Evaluations
  • Acquisitions
  • Bilingual – English and Spanish

Education

BS degree, civil engineering, Michigan State University, 2009

Summary of Areas of Expertise

Over 10 years of diverse experience in independent oil and gas property evaluations, acquisitions, audits and independent estimations of oil and gas reserves and resources under the reserves definitions and guidelines set by the Securities and Exchange Commission of the United States (SEC) and the Society of Petroleum Engineers – Petroleum Resources Management System (SPE-PRMS).

Reserves Evaluation and Certifications: Experience includes conducting reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) definitions. Expert in the evaluation of reserves and future income under a variety of fiscal terms and model contracts.

Acquisition and Divestiture Work: Experienced with reservoir evaluation studies for use in both acquisitions and divestitures of oil and gas properties for various Ryder Scott’s clients. Conducted multiple evaluations and due diligence studies for investment groups, private equity firms, pension funds, etc while adhering to data room procedures to deliver meaningful results on extremely tight deadlines.

Economic Evaluations: Economic evaluation experience in various geographical areas. Experience includes the preparation of sales packages for divestiture and fair market value (FMV) evaluations using the Society of Petroleum Evaluation Engineers (SPEE) and Ryder Scott Internal guidelines.

Summary of Employment

Ryder Scott Co. LP     2010 to Present

Senior Petroleum Engineer
Evaluate petroleum reserves, field performance and economics for fields worldwide, applying various engineering techniques – emphasis on reserves estimation in accordance with U.S Securities and Exchange Commission and Society of Petroleum Engineers Petroleum Reserves Management System.

Significant studies include: evaluating the field development plan, best fiscal model for discovery fields, in the Vaca Muerta Shale Play, Neuquen Basin, Argentina; third party technical expert in mediation between two major oil and gas companies; evaluating certain Pemex field’s technical performance following the Mexican Hydrocarbons Reform Law; evaluating 164 fields and provided recommendations and commentary regarding the development plans submitted by Pemex to the Comision Nacional de Hidrocarburos (CNH).

Geographical Areas of Experience

Latin America
Argentina
Bolivia
Colombia
Ecuador
Northern Mexico
Peru
Venezuela

Africa
Angola
Nigeria

Ukraine

Offshore Thailand

USA

Professional Associations

Member, Society of Petroleum Engineers (SPE)

Teaching and Presentations

Reserves Definitions and Armadillo Field Case Study Workshop (Secretary of Hydrocarbons of Ecuador and Petroamazonas)

Photo of Larry Patrick Connor, P.E. Advising Senior Vice President

Larry Patrick Connor, P.E. , Advising Senior Vice President

Key Attributes and Proficiencies
  • Reserves Evaluations
  • FSU Relations
  • Economic Evaluation Software
  • Teaching
  • Coalbed, Coalmine Methane Analysis
  • Unconventional Shale Analysis
  • Permian Basin Secondary Operations
  • Undiscovered Prospective Resource Analysis
Education BS degree, industrial engineering, Texas A&M University, 1977 Graduate work - business administration, University of Houston Industry-sponsored short courses in waterflooding, reservoir evaluation, problem well analysis and well-log evaluation

Summary of Areas of Expertise
Approximately 40 years of reservoir engineering experience with major oil company and leading engineering consulting firm, specializing in reservoir evaluation and economic evaluation.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • FSU Relations
  • Economic Evaluation Software
  • Teaching
  • Coalbed, Coalmine Methane Analysis
  • Unconventional Shale Analysis
  • Permian Basin Secondary Operations
  • Undiscovered Prospective Resource Analysis

Education

BS degree, industrial engineering, Texas A&M University, 1977
Graduate work – business administration, University of Houston
Industry-sponsored short courses in waterflooding, reservoir evaluation, problem well analysis and well-log evaluation

Summary of Areas of Expertise

Approximately 40 years of reservoir engineering experience with major oil company and leading engineering consulting firm, specializing in reservoir evaluation and economic evaluation. Ability to work as leader or member of a multidisciplinary project team or to work independently. Project manager and primary contact for several of Ryder Scott’s long-standing clients. Extensive experience in software evaluation, negotiations with vendors, installations and training personnel on selected systems.

Reservoir Engineering: Comprehensive understanding of traditional reservoir engineering techniques including performance curve analysis, volumetric analysis, material balance calculations, waterflood analysis, gas deliverability, infill drilling analysis and other aspects. Proficiency in several internal and external reservoir evaluation tools, including ARIES, MERAK, OGRE, PHDwin, Petro-Soft, Power Tools, Accumap, as well as data management using MS ACCESS and MS EXCEL.

Integrated Reservoir Studies:Routinely work with geologists and geophysicists on projects that require integration of various types of data to optimize results and achieve project goals. Have a working knowledge of geological and geophysical concepts as applied to reservoir performance. Effectively combine geological and engineering principles to achieve a solution to both routine and complex reservoir problems.

Reserves Determinations: Well acquainted with reserve definitions of U.S. Securities and Exchange Commission (SEC), World Petroleum Congress/Society of Petroleum Engineers (PRMS) and the Canadian NI51-101. Reviewed third-party reports for the Alberta Stock Exchange for compliance to definitions. Performed both detailed reserves estimates and audits of clients’ internal reserve estimates and served on reserve audit committees for multinational companies.

Economic Evaluations: Conducted numerous oil and gas economic evaluations for use in SEC reports, Competent Persons Report for the London Stock Exchange Alternative Investment Market (AIM), Honk Kong Exchange, initial public offering (IPO) filings, bank reports, acquisition-and-divestiture transactions, tax valuations, project and investment justifications and various other end uses. Extensive experience with the usage of both in–house economic software and several commercial economic programs. Performed detailed probabilistic evaluations in unconventional reservoirs.

Unconventional Reservoirs: Conducted detailed reservoir and reserves/resource determination studies in the Permian Basin – including Wolfcamp, WolfBone and Spraberry – Avalon, Cline, Barnett, Utica and Macasty. Technical consultant for government of Quebec.

Coalbed Methane: Conducted international coalbed methane feasibility and reserves determination studies for clients in Australia, Colombia, France, Great Britain, Peoples Republic of China and Poland. Conducted coalbed methane and coal mine methane feasibility and reserve determination studies in the states of Alabama, New Mexico, Montana, Utah, Virginia, Washington and Wyoming.

Heavy Oil: Conducted numerous studies of heavy-oil properties in the Western Canadian Sedimentary basin and California. Evaluations focused on projects in thermal recovery (SAGD and Steamflood), waterflooding, horizontal drilling, infill drilling potential and cold production technology.

Acquisition and Divestitures: Conducted acquisition studies for Teco Energy, Apache Corporation, Gulf Canada, Nuevo Energy, Canadian Occidental and several other companies. Some studies led to successful bids. Supervised and prepared divestiture reports that present detailed descriptions of study methodology and economic evaluations. In many instances, identified upside potential, maximizing the opportunity from the investor’s perspective. Very familiar with data-room procedures and with the process of delivering meaningful results under extremely tight deadlines. Cognizant of the business aspects of a successful acquisition and with the due diligence process. In many cases, responsible for electronic data gathering and management as well as transfer to potential buyers.

Software Development: Coordinate the acquisition and support of various third-party engineering and geological software packages and insure the integration of these products within the company. Review new software, tools and processes for improving the efficiency and quality of the Ryder Scott work product. Served on the formal and ad-hoc design and development teams of Garrett, Merak and PHDwin. Prepare lesson plans, student reference materials and conduct training classes on new software.

Summary of Employment

Ryder Scott Co. LP     1981 to Present
Executive Vice President
Perform reservoir studies for numerous clients for oil and gas property appraisals, waterflood and pressure maintenance operations, property acquisitions and divestments, and evaluation of development potential. Clients include U.S. and international E&P companies of all sizes, financial institutions and government agencies. Evaluate and prepare reserve determinations and future deliverability from coalbed methane and shale reservoirs.

From 1997 to 1999, served as assistant manager in the Calgary office. From 2005 to 2010 served as Group Leader in the Houston office. From 2010 to 2014 served as manager in the Calgary office. As Houston Group Leader and the Calgary Office Manager: supervised and coordinated the efforts of the staff in reservoir evaluations, coordinated and conducted training and performed various administrative duties. Elected to Ryder Scott Board of Directors in 2014.

Amoco Production Co.     1977 to 1981

Reservoir Engineer, promoted to Reservoir Engineer (Senior Grade) 1980
Performed in-depth reservoir studies to infill drill several west Texas waterflood properties. As an operations engineer, evaluated all proposals to drill, deepen, recomplete, stimulate and plug and abandon all Amoco properties in Railroad Commission Districts 7, 7C, 8 and 8A. Reviewed all requests for farm-outs and farm-ins and developed bids for negotiations.

Production Engineer, Odessa, Texas
Evaluated numerous primary fields and secondary waterflood projects in west Texas and made recommendations to maintain or improve performance and recovery. Duties included stimulation design, recompletions and daily operations.

Geographic Areas of Experience

Canada and United States
Canada – Alberta, British Columbia, Northwest Territories, Saskatchewan, Quebec and East Coast Offshore
U.S. – All areas of onshore and Gulf of Mexico

Coalbed Methane
Alabama (Black Warrior Basin)
New Mexico (San Juan Basin)
Montana
Utah (Uinta Basin)
Virginia
Washington
Wyoming

International
Africa – Gabon, Congo, Niger, Angola – offshore
Asia – Indonesia
Australia (Coalbed Methane)
Colombia (Coalbed Methane)
Ecuador – Oriente Basin
France – Paris Basin, Lorraine Basin (Coalbed Methane)
Former Soviet Union (FSU)

  • Azerbaijan
  • Kazakhstan
  • Moldova

Russia (European, Western, Northern and Eastern Siberia)

  • Turkmenistan
  • Ukraine

Indonesia – Offshore
Italy – Po Valley
Malaysia – Offshore
Peoples Republic of China – Shanxi Province (Coalbed Methane), Inner Mongolia
Poland – Upper Silesian Coal Basin (Coalbed Methane)
Thailand – Offshore
Turkey – Offshore, onshore – oil shale
Tunisia – Chergui Field
United Kingdom – Offshore

Professional Associations

Registered Professional Engineer with the Association of Professional Engineers, Geoscientists of Alberta
Registered Professional Engineer with the Association of Professional Engineers, Geoscientists of British Columbia
Registered Professional Engineer with the Association of Professional Engineers, Geophysicists and Geologists of Saskatchewan
Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers
Member, Society of Petroleum Evaluation Engineers (previously served as Chairman Houston Section)

Expert Testimony

Appeared before Tribunal Pre Trial Post Trial – prepared 2009
Pretrial and trial testimony before the Michigan Public Service Commission.
Trial testimony before Ontario Superior Court of Justice

Civic/Charitable Organizations

Major, Medical Service Corps, U.S. Army Reserve (Retired)

  • Director of medical training
  • Chief of operations medical training center
    • Coordinated mobilization of medical personnel for Desert Storm
    • Coordinated all activities of training center to ensure all aspects of readiness
  • Commander training battalion
  • Executive officer training brigade
  • Detachment Commander, HQ&HC USA Hospital
  • Commander training company
  • Platoon Leader Clearing company
Photo of Tosin Famurewa, P.E. Executive Vice President

Tosin Famurewa, P.E. , Executive Vice President

Key Attributes and Proficiencies
  • Team Leadership
  • Project Management
  • Management Advisory
  • Client Relations
  • Energy Resource Evaluations
  • Speaker, Panelist and Guest Lecturer
Education
MS degree, petroleum engineering, University of Southern California, 2007 Dual BS degree, chemical engineering and material science / engineering, University of California at Berkeley, 2000

Summary of Areas of Expertise
Energy executive well-versed in business development and entrance to new markets.…Read More

Key Attributes and Proficiencies

  • Team Leadership
  • Project Management
  • Management Advisory
  • Client Relations
  • Energy Resource Evaluations
  • Speaker, Panelist and Guest Lecturer

Education

MS degree, petroleum engineering, University of Southern California, 2007
Dual BS degree, chemical engineering and material science / engineering, University of California at Berkeley, 2000

Summary of Areas of Expertise

Energy executive well-versed in business development and entrance to new markets. Over two decades of engineering and management experience at two super-major energy companies and a leading energy consulting firm. Management advisory services to ensure government and business entities are harnessing the full potential of their assets across the energy value chain. Production, project controls, and reservoir engineering experience in operations, asset-team, joint-venture, and consulting environments. Management of global multi-disciplinary teams evaluating resources for acquisition, divestiture, strategic planning, capital rounds, and regulatory filing purposes. Demonstrated ability to build positive, productive relationships and strategic partnerships with local and remote teams across the organization to drive business performance. Adept in developing and managing long-term client relationships. Group Leader and Member of Ryder Scott’s Board of Directors.

Management Advisory: Experienced in management planning and decision-making processes amidst a climate of competition and risk. Provided advice in the areas of economic analysis, strategic planning, negotiation strategies, contract evaluation, and conflict resolution.

Production Engineering: Field experience in heavy oil production. Evaluated waterflood and steamflood enhanced-oil-recovery projects. Activities included budgets, active drilling program, recovery studies, stimulation programs, including massive hydraulic fracturing, workover, and plug and abandon programs. Conducted feasibility studies and implemented new capital projects.

Reservoir Engineering: Extensive experience with the application of traditional reservoir engineering techniques, including decision analysis, decline-curve analysis, volumetric analysis, material balance calculations, PVT analysis, gas deliverability, and other reservoir engineering applications. Multiple years of experience in secondary and tertiary recovery, as well as unconventional shale plays. Proficient in the preparation of E&P business plans.

Integrated Reservoir Studies: Routinely work with geologists and geophysicists on projects that require the integration of various types of data to optimize results and achieve project goals. Working knowledge of geological and geophysical concepts as applied to reservoir performance. Effectively combine geological and engineering principles into practical, useable solutions to optimize recoveries, extend production and maximize asset value.

Field Development Studies: Successfully participated in and led major field development studies and have justified and directed capital programs for development drilling in new fields, infill drilling, and redevelopment/recompletion activities in mature fields. Worked with and on multidisciplinary teams to maximize reserves and field profitability.

Reserves and Economic Evaluations: Conducted reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers Petroleum Resources Management System (SPE-PRMS) definitions, and the application of these definitions in the classification and categorization of reserves for audits, annual regulatory filings and certification. Proficient in the evaluation of reserves and future income under a variety of fiscal terms and model contracts such as Production Sharing, Joint Venture, Risk Sharing, and Service Agreements. Skilled in determining if fiscal term meets the threshold for bookability of reserves. Conducted multiple oil and gas economic evaluations for use in reserves reports, bank reports, data rooms, acquisition and divestiture transactions, pipeline justification, project evaluation, and various other end uses. Experienced with the usage of several commercial forecasting and economics programs.

Probabilistic Analysis: Evaluation of reserves, field performance, and economics using probabilistic methods. These studies involved the integration of multiple geologic and engineering equiprobable realizations to arrive at a combined probabilistic project outcome distribution.

Acquisition and Divestitures: Experienced with reservoir evaluation studies for use in both acquisitions and divestitures of oil and gas properties. Adroit with short deadlines, highly confidential work, data-room procedures, due diligence process, as well as the business and financial aspects of acquisitions and divestitures. Supervised and prepared divestiture reports that present detailed descriptions of study methodology and economic evaluations. Identified upside potential, maximizing the opportunity from the investor’s perspective.

Project Controls: Performed business analysis, integrity check, maintained cost controls, reconciled accounts, and developed budget and funding plan.

Summary of Employment

Ryder Scott Co. LP     2006 to Present
Executive Vice President
Evaluated petroleum resources and field performance applying various engineering techniques. Led integrated teams including geophysicists, geologists, petroleum and facilities engineers, and economists, and review and publish these integrated reports.

Conducted numerous oil and gas economic evaluations under various fiscal terms and models for use in audits, annual regulatory filings, certifications, IPO filings, financial planning, executive management advice, bank reports, feasibility studies and property acquisition, mergers and divestiture transactions of various onshore and offshore fields.

Major clients include ADNOC, Afren, Aker, Angola LNG, ANPG, APCO, Bahamas Petroleum, Bolivia YPFB, BP, Chevron, CNOOC, Conoil, Dodsal, Ecopetrol, ENI, Exxon, Famfa, Hocol, Japan Australia LNG, MIMI, KNOC, Kosmos, Maersk, Memorial Resources, NewAge, Noble Hill Network, Pemex, ANH, Perenco, PetroAmazonas, PetroPeru, Seplat, Shoreline, and Sonangol.

Chevron International     2006
Petroleum Engineer; Nigeria/Mid-Africa
Member of joint-venture team with ExxonMobil, Petronas, World Bank, and governments of Chad and Cameroon on a $7 billon oilfield development program for Chad. Reviewed simulation model, business plan and reserves estimates and performed decline curve analysis. Reviewed, analyzed and made recommendations on several drilling and exploration packages. Reviewed and approved various stimulation proposals including diesel, xylene, brine, or acid jobs, coiled tubing, fines mitigation strategies etc. Monitored field production for trend analysis and identify potential opportunities. Developed major field reservoir, surveillance, uncertainty and depletion plan. Participated in peer reviews, field reviews and framing sessions.

Chevron International     2004 to 2006
Lead Project Controls Engineer; Nigeria / Mid Africa
Supervised and hired project control engineers, information management specialists and support group for eight multimillion-dollar international projects. Performed business analysis, integrity check, and Cash Calls for submission to JV partner and stakeholders. Project manager for million-dollar electronic document management and cost management systems implementation. Maintained cost controls, reconciled accounts and developed budget and funding plan for the Okan Gas Gathering Compression Platform Debottleneck.

ChevronTexaco North America     2002 to 2004
Reservoir Engineer; Lost Hills Field, California
Calculated in-place volumes, pattern size and reserves for the Tulare/Amnicola reservoir and the North Lost Hills field. Calculated field-wide reserves probabilistically. Evaluated alternatives, cost estimates, built production model, conducted decline-curve analysis, developed economic forecasts, recommended capitalization plan and generated business plans. Managed field horizontal well project and wrote support packages for various multimillion-dollar field development plans. Analyzed historical data on sand volumes, proppant types, frac fluids and additives, perforation schemes, pumping rates, etc., to obtain an optimum hydraulic frac/completion design for planned well packages.

Generated production, opex and capex forecasts, calculated field property tax and presented to the county board. Analyzed and recommended filtration specifications for field water injection program. Wrote wellwork programs and monitored hyper stimulation frac jobs. Developed economic forecasts and contractor incentive program for projects that involved multi-stage stacked fractures of producers/injectors, microbial enhanced oil recovery and in-situ seismic stimulation.

Project Lead for Seal Beach, California Bryant Lease divesture project. Project manager for microbial enhanced recovery program.

Texaco Worldwide E&P     2000 to 2001
Production Engineer; Kern River Field
Project lead of field team. Responsible for 150 injection and 500 producing wells. Managed multi-million-dollar expense account to maximize production. Analyzed production and injection trends and implemented remedies. Executed recompletion, well conversion, replacement, new well, abandonment, and workover programs.

Texaco Worldwide E&P     1998 to 2000
Production, Facilities, Drilling and Analyst Intern; Kern River and Midway Sunset fields, California
Designed a multi-million-dollar water management strategy for 1,500 wells. Identified and completed well jobs. Developed Maintenance Tracking System for dehydration plants; trained operators. Designed database of new casing gas measurement system. Investigated valve safety concerns; made recommendations that generated significant savings. Modified and updated well drilling reports and database. Developed oil well and automatic well tester operations computer-training curriculum. Wrote manual and trained operators.

Geographical Areas of Experience

Africa & Middle East
Algeria
Angola
Cameroon
Chad
Congo
DR Congo
Egypt
Equatorial Guinea
Gabon
Ghana
Mauritania
Nigeria
Senegal
Tanzania
Tunisia

Eurasia Asia
China
Indonesia

Oceania
Australia

North America
California
East Texas
West Texas
Mexico

Central and South America
The Bahamas
Guatemala
Argentina
Bolivia
Colombia
Ecuador
Peru
Venezuela

Professional Associations

Licensed Professional Engineer (P.E.) in Texas
Licensed Professional, Financial Reporting Council of Nigeria
SPE Certified (SPEC) Petroleum Engineer
Chairman, Society of Petroleum Evaluation Engineers, Houston Chapter | 2018
Houston Mayoral Advisory Board on International Affairs and Development | 2007 – 2015
Society of Petroleum Engineers
Society of Petroleum Evaluation Engineers
Pi Epsilon Tau Honorary Fraternity
World Affairs Council
Committee on Foreign Relations

Teaching and Presentations

Panelist, Advancements in Petroleum Engineering. 6th Sub-Saharan Africa Oil and Gas Conference, Houston, Texas. 2013.
Speaker, Tools to Quantify, Monetize & Analyze Reserves. 5th Sub-Saharan Africa Oil and Gas Conference, Houston, Texas. 2012.
Speaker, Impact of Fiscal Terms on Reserves Bookability. 4th Sub-Saharan Africa Oil and Gas Conference, Houston, Texas. 2011.
Speaker, University of Southern California Ci-soft Academy. Los Angeles, CA. 2006.
Speaker, Energy Center Houston Museum of Natural Science Seminar, Houston, TX. 2005.
Speaker, Annual National Engineers week, Bakersfield, CA.  2003/04.
Guest Lecturer, Introduction to Engineering, Bakersfield College, CA. 2003.
Participant, National Eagles Leadership Institute Awards (NELI) Gala, Beverly Hills, CA. 2003.
Speaker, West Coast INROADS Banquet. Bakersfield, CA. 2001.

Photo of David Garcia, P.E. Vice President

David Garcia, P.E. , Vice President

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Bilingual - Fluent in oral and written English and Spanish
  • Reservoir Modeling
  • Teaching
  • Thermal EOR Methods

Education
BS degree, petroleum engineering, University of Oklahoma, 2001 MS degree, petroleum engineering, University of Oklahoma, 2005

Summary of Employment
Ryder Scott Co.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Bilingual – Fluent in oral and written English and Spanish
  • Reservoir Modeling
  • Teaching
  • Thermal EOR Methods

Education

BS degree, petroleum engineering, University of Oklahoma, 2001
MS degree, petroleum engineering, University of Oklahoma, 2005

Summary of Employment

Ryder Scott Co. LP     2015 to Present
Vice President
Evaluate petroleum reserves, field performance and economics applying various reservoir engineering techniques. Emphasis on reserves estimation in accordance with U.S. Securities and Exchange Commission (SEC) rules and the Society of Petroleum Engineers Petroleum Resources Management System (SPE-PRMS). Projects include performing detailed, full-field analyses for annual regulatory filings and property sales and acquisitions. Also, conduct project feasibility studies.

Occidental Petroleum Corp.     20010 to 2015
Senior Reservoir Engineer
Generated life-of-field plans for several gas and tight-gas fields. Calculated, compiled and reported reserves compliant with SEC rules and corporate policies. Performed development planning, production forecasting and economical analysis for tight-gas reservoirs. Managed drilling and recompletion projects. Performed economic evaluations and made recommendations to divest or retain assets. Developed depletion plan for California gas properties. Conducted reservoir surveillance, examined individual well performance and provided recommendations for upside or remedial work. Evaluated economics and profitability of capital-expenditure projects. Identified, qualified and quantified reserves as per SEC rules and corporate guidelines. Used reservoir simulation model to verify expected reserves and performance of new projects.

Drilling Engineer
Prepared cost estimates, regulatory permits and programs for drilling-and-completion operations. Managed well planning and directional drilling in a highly challenging environment. Performed torque-and-drag modeling, hydraulics modeling and designed casing on every well. Monitored all phases of drilling operations and provided well engineering support. Managed drillbit, directional drilling and gyro-survey contracts.

Schlumberger Ltd.     2005 to 2008
Senior Field Engineer
Managed openhole and cased-hole logging services, perforation services and log analysis. Focused on radiation safety, record keeping, compliance of law, regulations and policies, personnel training and monitoring and minimizing exposure to employees and general public.

Geographical Areas of Experience

California
South Texas

Professional Associations

Licensed Professional Engineer (PE) in the State of Texas
Society of Petroleum Engineers (SPE)

Photo of Marylena Garcia, P.E. Managing Senior Vice President – Group Leader

Marylena Garcia, P.E. , Managing Senior Vice President – Group Leader

Education
MS degree, petroleum engineering, Texas A&M University, 2005 BS degree, petroleum engineering, Universidad de Oriente, 1998

Summary of Employment
Ryder Scott Co. LP     2010 to Present
Managing Senior Vice President – Group Leader Conducted reserves evaluations in accordance with the Securities and Exchange Commission guidelines and the Society of Petroleum Engineers reserves estimation guidelines for numerous international exploration and production companies on oil and gas properties. …Read More

Education

MS degree, petroleum engineering, Texas A&M University, 2005
BS degree, petroleum engineering, Universidad de Oriente, 1998

Summary of Employment

Ryder Scott Co. LP     2010 to Present
Managing Senior Vice President – Group Leader
Conducted reserves evaluations in accordance with the Securities and Exchange Commission guidelines and the Society of Petroleum Engineers reserves estimation guidelines for numerous international exploration and production companies on oil and gas properties.  Performed reserves evaluation on fields in Colombia, Ecuador, Argentina, China, Australia, Algeria, Trinidad as well as reservoir performance analysis in Abu Dhabi and reserves evaluation on unconventional resources in the Barnett Shale and the Mississippi Lime Play in the United States.  Used traditional reservoir engineering techniques including but not limited to decline curve analysis, material balance, volumetric calculations and offset analogy interpretation for reserves estimations.  Other duties include the evaluation of future income under a variety of fiscal terms and model contracts such as production sharing contacts and agreements, joint venture contracts and agreements, risk sharing and service agreements.

ConocoPhillips     2007 to 2009
Senior Reservoir Engineer
Reservoir engineer for the Lake Pelto field in the South East Louisiana team in the Gulf of Mexico.  Conduct resource assessment evaluation.  Estimate reserves for new prospects and work over wells.  Conduct reserves booking, post audit for the Lake Pelto field.  Develop economic models in Peep for capital projects.  Participate in peer reviews for new prospects and lease reviews for existing wells.  Plan and execute budget and long term plan for the asset.

Occidental Oil & Gas      2005 to 2007
Reservoir Engineer
Reservoir engineer for the Denver unit, the largest unit in the Wasson field and one of the world’s largest CO2 EOR project, producing approximately 32,000 BOPD.  Balanced CO2 floods and manage WAG schedules based on pattern maturity, CO2 utilization CO2 and breakthrough.  Planned and execute CO2 flood expansions and improve reservoir sweep efficiency via pattern reconfiguration.  Estimated oil and gas reserves using, decline curve analysis, production data analysis, and reservoir simulation.  Developed and conduct infill programs to improve oil recovery.  Developed project economic models in Peep to evaluate future capital expenditures.  Conducted reserves evaluation for new capital opportunities.  Prepared production and injection forecasts.  Developed expected production and injection performance plots by patterns to improve monitoring of reservoir behavior in batteries 1, 3 and 8 in the Denver unit.  Performed pattern/well reviews using performance plots on well and reservoir level.  Performed all necessary reservoir engineer duties such as budget, post-audits, reserve booking and reviews, 3rd party tax audits and working interest owners meetings and requests.

Occidental Oil & Gas/Oxy Middle East     2004
Summer Internship
Developed a library of functions in VBA for economic indices calculation.

Texas A&M University     2004
Teaching Assistant
Taught formation evaluation course for undergraduate class.

Petroleos de Venezuela, S.A. (PDVSA)     1998 to 2003
Reservoir Engineer
Conducted compositional reservoir simulation using Eclipse 100 and Eclipse 300 simulators.  Performed forecasting of production and injection.  Integrated dynamic reservoir models with other disciplines such as geology, petrophysics and geophysics.  Monitored high-pressure gas injection projects using records of injection pressures, injection profiles and tracer surveys.  Checked on the validity of pressure-volume-temperature (PVT) laboratory data based on measurements performed on petroleum and gas condensates mixtures and generated equations of states of the reservoirs fluids using PVTi.  Conducted material balance analysis in gas condensate reservoirs with MBAL to determine reservoirs communications and oil and gas reserves estimations.  Followed-up on drilling and completion phases of wells.  Supervised build up, fall offs and production logging tests in oil and gas wells.

Petroleos de Venezuela, S.A. (PDVSA)     1996
Summer Internship
Developed well workovers recommendations and ran well test on oil wells.

Geographical Areas of Expertise

Colombia
Ecuador
Argentina
China
Australia
Algeria
Trinidad

Professional Associations

Member, Society of Petroleum Engineers

Publications

“Reducing CO2 Bypassing and Optimizing CO2 flood design in Heterogeneous Formation”, Journal: e-journal of Reservoir Engineering. Year: 2005, Vol:1, Issue: 1

Languages

Fluent in oral and written Spanish

Photo of Daniel Guzman Senior Petroleum Engineer

Daniel Guzman , Senior Petroleum Engineer

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Teaching
  • Thermal EOR Methods
  • Bilingual – Fluent in Spanish and English
  • Evaluation of Unconventional Reservoirs

Education
BS degree, petroleum engineering, National University of Engineering, Peru, 1987

Summary of Areas of Expertise
Over 30 years of diverse experience in evaluating oil and gas properties, including more than 5 years applying numerical modeling approaches to these evaluations.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Teaching
  • Thermal EOR Methods
  • Bilingual – Fluent in Spanish and English
  • Evaluation of Unconventional Reservoirs

Education

BS degree, petroleum engineering, National University of Engineering, Peru, 1987

Summary of Areas of Expertise

Over 30 years of diverse experience in evaluating oil and gas properties, including more than 5 years applying numerical modeling approaches to these evaluations. International experience and team leader in field development planning and analysis of portfolio and economic strategies. Generated prospects for exploration portfolio using 3D modeling and simulation and transient-pressure design analysis and evaluation. Economic evaluation of E&P projects. Used completion-stimulation engineering techniques. Provided reservoir and production engineering consultancy, monitored and controlled productivity and performance and created strategies for increasing field productivity. Evaluated reserves and forecasts, matching production behavior with strategies for control of and development in fields.

Integrated Reservoir Studies: Optimization of field development through the integration of various earth science tools and disciplines. Integrated geological, petrophysical, geostatistical, geophysical, and reservoir and production engineering data into a comprehensive numerical reservoir simulation model. These models are then used to help optimize the reservoir exploitation plan by searching for the scenario that tends to maximize the field (net present) value. One such study is: Shushufindi, Libertador in Ecuador , Lago Mar, Zapatos Punta de Mata, Merecure Pitrital Venezuela – full field, fully integrated study.

Economic Evaluations: Economic evaluation experience in various geographical areas. Experience includes the preparation of sales packages for divestiture.

Reserve Certifications: Work with the SEC and SPE-PRMS reserve definitions on a daily basis and therefore developed a familiarity with the application of these definitions in the classification of reserves. Dealt with the reserve definitions set by other exchange commissions such as those in Canada, Hong Kong and London. Interacted with the U.S. Securities and Exchange Commission on behalf of Ryder Scott clients and have advised clients on approaches to their reserves reporting.

Acquisition and Divestiture Work: Experienced with reservoir evaluation studies for use in both acquisitions and divestitures of oil and gas properties for various Ryder Scott’s clients. Cognizant of the concept of short deadlines and highly confidential work involved, as well as the business and financial aspects of both acquisitions and divestitures and the importance of the due diligence process.

Process Auditor: Participated on internal corporate audit committees as a third party auditor in association with the internal reserves audit committee. In some cases, this has been as an overall audit of the methodology and processes employed to deliver the publicly reported reserves by that company.

Other Areas of Proficiency

Fluid Characterization: Conducted numerous fluid characterizations using commercially available reservoir fluid analysis packages. Typically tuned Peng-Robinson equations of state for subsequent use in various compositional and black oil models. One such study is Merecure Venezuela – fluid characterization for separator design.

Material Balance Studies: Evaluation of reservoir size and performance using material balance techniques. Other experience involved teaching in-house material balance schools to engineers while at Maxus, Corelab.

Field Operations: Twelve years operations experience in light and heavy oil reservoirs in NorthWest and Jungle in Peru, Tight Gas in North of Mexico.

Steamflood Production Operations: Experience involved surveillance of ongoing steamflood and cyclic steam projects. Infill drilling, workovers and profile control in Complejo AJ Bermudez, Tamaulipas Constituciones, Ebano Panuco PEMEX Mexico were routinely conducted.

Summary of Employment

Ryder Scott Co. LP     2006 to Present
Senior Petroleum Engineer
Perform evaluations of reserves, field performance and economics using deterministic and probabilistic methods. Emphasis on reserves estimation in accordance with SEC and SPE guidelines.

Maxus Energy Co. / Repsol YPF SA     2005 to 2006
Reservoir Engineer
Developed proved gas reserves, integrating geophysics, geology and production engineering. Conducted nodal analysis and material balance for well control. Developed production simulation model for fields in Burgos basin in Mexico.

Tricon Geophysics Inc./Petroleum Services Inc.    2004 to 2005
Reservoir Engineer
Introduced Tricon geophysics in the Venezuela and Mexico market for use in integrated studies. Assisted in the evaluation of stimulation project in Venezuela. Evaluated and designed strategies for monitoring wells and increasing production. Identified skin factors relative to production. Designed strategies for increasing production and well performance in Oriente basin.

Core Lab NV (Integrated Reservoir Solutions)    2002 to 2004
Reservoir Engineer
Conducted reservoir and production engineering for projects in Ecuador and Venezuela. Prepared strategy to increase field productivity for integrated characterization study.

Petroleos de Venezuela    2002
Reservoir Engineer – Advisor
Analyzed performance of gas condensate fields for production optimization. Conducted reserves evaluations and production forecasts. Prepared plan for monitoring well pressures and matched well performance with the reservoir data and 3D compositional simulation model.

Schlumberger     2001
Reservoir Engineer – Production
Assisted clients in Peru, Ecuador and Colombia in exploration and development of reservoirs using Schlumberger products. Introduced new technology.

Independent Consulting in Reservoir Engineering     1998 to 2000
Conducted third-party reservoir engineering services for numerous companies with E&P operations in Bolivia and Mexico.

Petroleos del Peru/ Pluspetrol, Peru     1988 to 1998
Reservoir, Production and Completions Engineer
Conducted reservoir and reserves analysis and production engineering in an integrated, multidisciplinary approach leading to a successful workover program, including a highly effective well perforation project. Introduced software to estimate future production and cashflow in northwest Peru. Managed successful workover program. Initiated use of numerical simulation for increasing productivity of sands. Developed control program with cost containments for well completions resulting in incremental production increases in northwest Peru. Optimized the use of materials, supplies and surface facilities.

Geographical Areas of Experience

Colombia
Ecuador
Mexico
Peru
Venezuela
Bolivia
England
Middle East
Malasia
Pakistan
Australia
USA – Unconventional

Photo of Anna Milena Hardesty, P.E., SPEC Senior Vice President – Group Coordinator

Anna Milena Hardesty, P.E., SPEC , Senior Vice President – Group Coordinator

Key Attributes and Proficiencies
  • Reserves and Resources Evaluations and Estimations
  • Project Management
  • Economic and Risk Analysis
  • Sales and Acquisitions
Education
BS degree, Mechanical Engineering, Tulane University, 1981 MS degree, Business, University of Texas, 2001 Exxon in-house courses in Reservoir and Facilities Engineering, Log Analyses, Economics, Geology, and numerous Oil and Gas schools offered by the Petroleum Industry

Summary of Areas of Expertise
Over 30 years of diverse experience in evaluating oil and gas properties, including project management, and petroleum, reservoir, and environmental engineering for both domestic and international operations.…Read More

Key Attributes and Proficiencies

  • Reserves and Resources Evaluations and Estimations
  • Project Management
  • Economic and Risk Analysis
  • Sales and Acquisitions

Education

BS degree, Mechanical Engineering, Tulane University, 1981
MS degree, Business, University of Texas, 2001
Exxon in-house courses in Reservoir and Facilities Engineering, Log Analyses, Economics, Geology, and numerous Oil and Gas schools offered by the Petroleum Industry

Summary of Areas of Expertise

Over 30 years of diverse experience in evaluating oil and gas properties, including project management, and petroleum, reservoir, and environmental engineering for both domestic and international operations. Significant experience in project coordination, design, execution and presentation abilities. Serves as a project coordinator in Ryder Scott’s Houston Office.

Summary Of Areas Of Expertise

Over 30 years of diverse experience in evaluating oil and gas properties, including project management, and petroleum, reservoir, and environmental engineering for both domestic and international operations. Extensive experience in project coordination, design, execution, and presentation abilities. Serves as a project coordinator in Ryder Scott’s Houston Office.

Summary of Employment

Ryder Scott Co. LP    2006 to Present
Senior Vice President
Assess, coordinate, and manage the evaluation and publication of the reserves and resources for various U.S. and international clients, including private and public companies in Argentina, Bolivia, Colombia, Ecuador, Mexico and Venezuela and around the world in Angola, China, Germany, Nigeria, and the North Sea. All work involves the thorough understanding of the rules and regulations set forth by the Securities and Exchange Commission (SEC) for the oil and gas industry as well as the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) reserve definitions and guidelines (PRMS).

Coordinate integrated teams including geophysicists, petrophysicists, geologists, petroleum engineers, and economists and review and publish these integrated reports. Coordination of projects includes the assessment, analysis, and estimation of reserves and resources, production scheduling, and economic analyses using decline curve analysis, volumetric calculations, analogy, and formation evaluation techniques, among other petroleum engineering tools. Proficiency in Aries, PhdWin, Peep, and OFM software evaluation tools.

Work closely as an advisor and consultant to the state oil companies PEMEX (Mexico) and PETROAMAZONAS (Ecuador) in the evaluation and economics of their operated properties, including determination of the value of their oil and gas reserves for potential partnership offerings. PEMEX work included the major fields of Chicontepec and Ku Maloob Zaap in Mexico. PETROAMAZONAS work encompassed most of the major oil fields it operates in Ecuador. Directly involved in and present during many of the current industry partnership negotiations processes for both companies. Active participant attending meetings with the Comisión Nacional de Hidrocarburos (CNH – Mexico’s government arm in the energy sector) to help formulate their hydrocarbon reporting laws.

Hardesty & Associates    1993 to 2006
President
Coordinated, engineered, and presented reports on reserves estimates, appraisals, and economic analyses of petroleum properties valued from $500,000 to more than $1 billion for use in acquisitions, mergers, sales, annual SEC filings, bank loans, and year-end reports. Thee=se projects included Canada, Argentina, Colombia, China, U.S., offshore and deep-water property evaluations for consultants, including Ryder Scott. Also evaluated various areas in Mexico, including the Burgos Basin, Chicontepec, Poza Rica, and Villahermosa areas. Forecasted recoveries and production scheduling using trend analysis, formation evaluation techniques, volumetric calculations, and economics software.

Evaluated data on $230 million project to develop six major oil fields in Brazil for Santa Fe Energy Resources. Interpreted reports, established project schedule and prepared plans for reentering existing wells and drilling new ones to recover more than 100 million barrels of oil. Coordinated data gathering, reserves calculations and economics. Calculated pay, reservoir parameters and reserves for $110-million project in Cote d’Ivoire. Estimated reserves for project viability, determining reservoir parameters of 12 wells using Hydrocarbons Data Systems (HDS) log analysis software, creating a wellbore utility chart and evaluating economics on a 120-Bcf field.

Analyzed economic projections to determine rate of return of $50-million oil project in Ecuador. Analyzed and calculated reserves for block using exploration well data. Reserves were estimated at more than 10 million barrels of oil. Determined reservoir parameters used in reserves calculations of wells in Gabon. Prepared engineering/geology sales report, set up data room and made presentation for $12 million property divestiture by independent in the Gulf of Mexico and Canada. Calculated reserves, future potential and economic value. Managed project to assess impact of rehabilitating large western Siberian field and several smaller fields for development bank issuing $295 million loan. Conducted site assessments of various oil and gas fields throughout Argentina, Russia, Texas, Louisiana and Mississippi.

Engineered production forecasts for various U.S. properties and prepared audits, evaluation reports, and letters for clients and banks as a prerequisite for loan agreements from $25,000 to more than $145 million. Evaluated fair market value for several estates using projected oil and gas production, income revenue statements, oil and gas prices, etc. Evaluated production and generated economic forecasts for marketed oil and gas properties valued at more than $145 million.

Santa Fe Energy Resources, Inc.    1998 to 1999
Senior Engineer
Evaluated data on $230,000,000 project to develop six major oil fields in Brazil. Work included analyzing available data, interpreting reports in Portuguese, creating project time line, planning for reentering of existing wells, and drilling of new ones to recover over 109 million barrels of oil. Resulted in Board approval of project and opening of an office in Rio de Janeiro.

Coordinated data gathering, reserve calculations, and economics for first time year-end company valuation of Brazil project by Ryder Scott (consulting engineering firm). Resulted in increased project’s original estimated reserves from 52 million to over 109 million barrels of oil; reserves booked in shareholders’ year-end report.

Calculated pay, reservoir parameters, and reserves for $110,000,000 project in Cote d’Ivoire, Africa. Work included estimating reserves for project viability, determining reservoir parameters of twelve wells using Hydrocarbons Data Systems (HDS) log analysis software, creating a wellbore utility chart, and running economics on 120 Bcf field. Resulted in a proposed location of exploratory well based on geological and reservoir interpretations; refused operatorship of neighboring block.

Ran economics to determine rate of return of $50,000,000 project in Ecuador. Work encompassed analyzing and calculating reserves for Ecuador block using exploratory well data. Resulted in reserves being estimated at over 10 million barrels of oil.

Determined reservoir parameters to be used in reserve calculations of non-operated wells in Gabon, Africa utilizing HDS software. Resulted in reservoir parameters and reserves being presented for year-end company valuation.

Golden Engineering Inc.    1992 to 1993
Vice President/Project Manager
Managed Venezuela office for operations of various oil field concessions. Verified booked reserves and economics of 20-year project. Scheduled workovers and planned drilling program to increase production. Also, assessed status of petroleum fields and prepared a report that was submitted to Argentina government.

L. A. Martin & Associates Inc.    1988 to 1992
Senior Engineer
Forecasted production and economic trends, recommended budgetary requirements, and generated economic projections for various U.S. and Russian properties valued at more than $150 million. Used reservoir engineering methods, including volumetric calculations, material balance, and decline-curve analysis. Conducted reservoir analyses of the Varyegan and Tagrinskf fields in western Siberia valued at more than $100 million.

RTP Environmental Assoc.    1986 to 1987
Project Manager
Proposed, coordinated, and executed environmental permitting application proceedings for $75 million construction project. Conducted all project management.

Exxon Co. USA    1981 to 1986
Senior Engineer
Managed and engineered several oil and gas fields, including Hawkins in Texas, while improving production through infill and development drilling programs, workovers, perforation of new intervals, gas injection rates, etc. The 30,000-BOPD Hawkins was the second largest field in the U.S. Conducted reservoir analysis, predicted production trends, and analyzed project economics and risks as basis for internal recommendation to invest in drilling more than 10 wells. Drilling program added more than $9 million in oil reserves. Evaluated and recommended procedures and workovers to enhance production of oil and gas fields, resulting in more than $32,000 per day in incremental revenue. Analyzed gas-injection program of Hawkins Field. Used modeling techniques to schedule, inventory, budget, and control gas-injection rate to recover more than $125 million in oil reserves. Developed a field operations nomograph to detect uneconomic operations. Analyzed and designed alternative fluid flow configuration to yield optimal system design. Managed several multimillion-dollar facilities and improved their efficiency.

Geographical Areas of Experience

Africa and Middle East
West Africa

Asia and Southeast Asia
China

Central and South America
Argentina
Bolivia
Brazil
Colombia
Ecuador
Peru
Venezuela

Europe and Former Soviet Union
Germany
Ireland
North Sea
Russia
United Kingdom
Western Siberia

North America
Canada
Offshore Gulf of Mexico
Mexico
Texas
Louisiana
Mississippi

Professional Associations

Licensed Professional Engineer in the States of Texas and Florida
Society of Petroleum Engineers
SPE Certified (SPEC) Petroleum Engineer
World Affairs Council
Society of Petroleum Evaluation Engineers – Director
Association of International Petroleum Negotiators
Tau Beta Pi Engineering Honor Society

Photo of Dainee Hurtado Senior Petroleum Engineer

Dainee Hurtado , Senior Petroleum Engineer

Education
BS degree, petroleum engineering, Zulia University, Venezuela, 1997 Awarded academic scholarships from Lagoven SA in Venezuela

Summary of Areas of Expertise
More than 14 years of experience in heavy and light oil and gas at major operator and consulting companies.  Knowledge of reservoir development, secondary recovery and waterflood performance techniques and in identifying drilling and workover opportunities. …Read More

Education

BS degree, petroleum engineering, Zulia University, Venezuela, 1997
Awarded academic scholarships from Lagoven SA in Venezuela

Summary of Areas of Expertise

More than 14 years of experience in heavy and light oil and gas at major operator and consulting companies.  Knowledge of reservoir development, secondary recovery and waterflood performance techniques and in identifying drilling and workover opportunities.  Proficiency in reservoir engineering material-balance calculations, decline-curve analysis, nodal analysis and waterflood studies.

Summary of Employment

Ryder Scott Co. LP     2011 to Present
Senior Petroleum Engineer
Conduct technical and economic evaluations of oil and gas reserves in accordance to U.S. SEC and SPE-PRMS guidelines.

RPS Scotia     2006 to 2009
Senior Petroleum Engineer
Provided reservoir engineering analysis to improve production and optimize asset value in EOR projects.  Prepared reservoir assessments for heavy oil and gas fields in Texas, Mexico, Argentina and Colombia based on the analysis of well history data to determine well placements for infills and potential workovers.  Prepared reservoir forecast and predictive analysis of oil production and water for a heavy oil reservoir in San Jorge Basin in Argentina.  Evaluated waterflood-injection scenarios to determine the best arrays in a large-scale pilot.  Participated in exploration activities to assess the reactivation of a condensate reservoir in Mexico in an environmentally protected area.  Predicted future production performance and estimated reserves from production data.  Analytical knowledge in estimating sweep efficiency, assessing causes of fluid breakthrough in wells and analyzing cores (special and conventional) and fluid properties.

Petroleos de Venezuela SA    1995 to 2003
Reservoir Development Engineer
Evaluated and managed mature heavy oil reservoirs under waterflood as well as the  completion of injectors and producers.  Identified, evaluated and implemented infill drilling programs.  Analyzed production performance data, recommended activities to improve well performance and assisted in planning remedial well activity.  Conducted nodal analysis.  Identified, quantified and managed risks and opportunities in drilling and workover proposals.  Managed and developed complex, compartmentalized and heterogeneous reservoirs in Lake Maracaibo area, Venezuela.  Actively participated in the implantation of Quality Management System ISO 9000-2000 in the business unit.  Determined potential opportunities, reserves and original-in-place gas in eastern Venezuela.

Petroleos de Venezuela SA    1995
Internship

Professional Associations

Member, Society of Petroleum Engineers

Languages

Fluent in Spanish and English

Photo of Mariella Infante Senior Petroleum Engineer

Mariella Infante , Senior Petroleum Engineer

Education
BS degree, petroleum engineering, Universidad Central de Venezuela, 2006

Summary of Areas of Expertise
Highly skilled in basic and advanced reservoir simulation and history matching, reservoir optimization, reserves forecasting and optimal field development planning.

Summary of Employment
Ryder Scott Co. LP    2018 to Present Senior Petroleum Engineer Conduct oil and gas reserves evaluations and economic analyses of on- and offshore E&P projects worldwide.…Read More

Education

BS degree, petroleum engineering, Universidad Central de Venezuela, 2006

Summary of Areas of Expertise

Highly skilled in basic and advanced reservoir simulation and history matching, reservoir optimization, reserves forecasting and optimal field development planning.

Summary of Employment

Ryder Scott Co. LP    2018 to Present
Senior Petroleum Engineer
Conduct oil and gas reserves evaluations and economic analyses of on- and offshore E&P projects worldwide.

Miller and Lents     2017 to 2018
Senior Reservoir Engineer
Performed oil and gas reserves evaluations and economic determinations of on- and offshore E&P projects.

Southwestern Energy Co.        2014 to 2016
Senior Reservoir Engineer
Conducted oil and gas reserves evaluations of areas in the Fayetteville and Marcellus shale plays.

Schlumberger, Ltd.        2006 to 2014
Senior Reservoir Engineer, Technical Sales – Houston
Provided technical consulting on advanced reservoir characterization workflows. Developed and executed marketing and sales strategy to maximize revenue for reservoir simulation group in North America. Worked with clients to identify gaps in their workflows and improve processes to achieve business objectives.

Senior Reservoir Optimization Engineer – Houston
Provided expert advice in reservoir optimization, characterization and engineering to clients in the Americas. Delivered internal and external training to reservoir engineers. Focused on reservoir engineering software functionality for interpretations.

Reservoir Engineer – Abingdon, U.K.
Provided technical expertise on reservoir engineering software and workflows in U.K. and Europe. As a technical expert, provided internal and external support and technical guidance to reservoir simulation community in the use of software to build static and dynamic models.

Product Analyst – Abingdon, U.K.
Specified technical requirements for Petrel RE future development based on area market analysis and prioritization. Led communication between reservoir engineer users worldwide and internal software engineering team.

Reservoir Engineer – Caracas, Venezuela
Provided reservoir simulation consulting services and software support to PDVSA and joint-venture companies. Optimized workflows to more efficiently conduct reservoir characterization studies and geological modeling, reservoir simulation modeling and history matching, production forecasting, sensitivity analyses, uncertainty analysis and surface-to-subsurface integration. Tested new versions of geological mapping program. Delivered training to reservoir engineering software users.

Geographical Areas of Experience

United States
California
Central New York
Colorado
Gulf of Mexico
Louisiana
Oklahoma
Texas
West Virginia
Wyoming

International
Argentina
Brazil
Canada
Colombia
Mexico
Norway
Trinidad and Tobago
United Kingdom
Venezuela
West Africa
Western Siberia

Professional Associations

Member, Society of Petroleum Engineers

Publications

Infante, Mariella, “Implementation of Assisted History Match Reservoir Simulation in Fayetteville”, 2015 SWN Technical Conference.

Segnini, Carlos Jesus, Repsol E&P T&T., Rashwan, Mahmoud, Repsol E&P T&T., Hernandez, Mirko Joshoe, Repsol E&P T&T., Rojas, Jose Alberto, Schlumberger., Infante, Mariella Alexandra, Schlumberger. “Probabilistic Analysis by Applying Uncertainty Workflows: A Case Study of the Teak Field, East Coast Trinidad”. SPE Paper 169924 for the 2014 SPE Energy Resources Conference, Port of Spain, Trinidad and Tobago.

Manfre, Diego and Infante, Mariella: “Optimization of the Cross SAGD (X-SAGD) Process in a Reservoir Model with Characteristics of the Orinoco Belt Using Experimental Design and Evolutionary Algorithms,” Reservoir Symposium 2010.

A. Álvarez, Guerra E., Gammiero A., Velásquez C., PDVSA Intevep, Perdomo J., Hernández R., Rodríguez N., Infante M. “Coupling a Reservoir Simulator with a Network Model to Evaluate the Implementation of Smart Wells on the Tomoporo Field in Venezuela”. SPE paper 122421. Presented at 2009 SPE Latin American and Caribbean Petroleum Engineering Conference, Cartagena, Colombia.

Rodriguez, Nelson and Infante, Mariella: “Integrated Asset Modelling for smart well completions in Tomoporo Field”. Reservoir Symposium 2008.

Languages

Fluent in Spanish and English.

Photo of Sandeep Khurana, P.E. Managing Senior Vice President – Group Leader

Sandeep Khurana, P.E. , Managing Senior Vice President – Group Leader

Key Attributes and Proficiencies
  • Strategy Advisory
  • Assets, and Project Management
  • Investment Profile Generation
  • Risk Assessment
  • Health, Safety, and Environmental Evaluations
Education
BS degree, civil engineering, IIT Delhi, India, 1987 MS degree, civil engineering, Rice University, 1990

Summary of Areas of Expertise
Approximately 30 years of professional experience in the oil and gas industry with a specialization in managing projects from resource development to market distribution.…Read More

Key Attributes and Proficiencies

  • Strategy Advisory
  • Assets, and Project Management
  • Investment Profile Generation
  • Risk Assessment
  • Health, Safety, and Environmental Evaluations

Education

BS degree, civil engineering, IIT Delhi, India, 1987
MS degree, civil engineering, Rice University, 1990

Summary of Areas of Expertise

Approximately 30 years of professional experience in the oil and gas industry with a specialization in managing projects from resource development to market distribution. An executive with a proven track record of maximizing corporate earnings by leading programs from inception through design, execution and operations, to achieve the highest and most efficient outcomes.

Management Advisor: Experienced in management planning and decision-making processes amidst a climate of competition and risk. Provides advice in the areas of economic analysis, strategic planning, negotiation strategies, contract evaluation and conflict resolution.

Front End Planning: Extensive experience onshore and offshore developing plans and schedules to achieve optimum economics while adhering to market demands and complying with equipment and logistical limitations. Ensures front end loading, planning, and efficient execution for major assets and projects within the project portfolio. Integrates expertise from various functional groups such as G&G, reservoir engineering, D&C, land, supply chain, finance, marketing, and environmental-health-safety regulatory, with expert business perspective to provide effective project execution.

Major Projects Management: Oil and gas project management with a multi-disciplinary team, including sub-surface, drilling, operations, and commercial to achieve first oil production. Utilize resources to ensure on-time and under-budget project completion. Hands-on expertise in design, purchasing, fabrication management, installation, and final commission.

Operations Management: Management of ongoing production operations and facilities upgrades to ensure adherence to health, safety, and environmental (HSE) standards and regulations.

Acquisition and Divestiture Work: Experienced with evaluation studies for use in both acquisitions and divestitures of oil and gas properties for various clients. Cognizant of the concept of short deadlines and highly confidential work involved, as well as the business and financial aspects of both acquisitions and divestitures and the importance of the due diligence process.

Reserve and Corporate Process Audit: Participated in numerous corporate review processes for major IOCs and NOCs providing an objective industry viewpoint on topics such as whether corporate reserves and development plans are appropriately estimated, whether the reserves estimation processes should result in reliable estimates, and whether other corporate processes should result in the desired reliability of outcome.

Project Controls: Experienced in business analysis, integrity checking, maintaining cost controls, reconciling accounts and developing budget and funding plans.

Other Areas of Proficiency

Surface Facilities: Design and operations of oil and gas production processes for offshore, onshore and unconventional fields.

Floating Production System: Design and operations of floating production systems in deepwater and ultra-deepwater.

Drilling and Well Operations: Drilling rig, well configuration and intervention.

Subsea: Design and operations of subsea equipment and systems.

Midstream: Design of onshore and offshore pipelines and related facilities including gas processing plants and LNG facilities.

Summary of Employment

Ryder Scott Co. LP     2019 to Present
Managing Senior Vice President – Group Leader
Team lead for wells and surface facilities providing integrated solutions in upstream and midstream areas, managing oil and gas production from resource development to market distribution. Collaborates with reservoir engineers and geologists to determine various options and produce a comprehensive solution.

Granherne – A KBR Company     2014 to 2019
Head of Advisory – Development & Operations
Managed advisory services, worked closely with businesses and Government/National Oil Corporations (NOC) on projects that involved but were not limited to such processes as commercial and contracting strategy, assets and master planning, and onshore development program set-up. Additional areas of expertise included concept selection, concession/PSC terms, due diligence, cost reduction, optimization, and field appraisal. Provided lender advisory services for investments in upstream fields, LNG plants, regasification, and pipelines as well as start-up, site visits, workshops, and extension plans.

Noble Energy     2010 to 2014
Manager Developments, Major Projects Group
Ensured front end loading, planning, and efficient execution for major assets and projects in offshore GOM, Eastern Mediterranean, West Africa, Nicaragua, Falkland, etc. and onshore unconventional Colorado, Nevada, Pennsylvania, etc. Utilized integrated expertise from functional groups such as G&G, reservoir engineering, D&C, land, supply chain, finance, marketing, environmental-health-safety, and regulatory. Provided expert business perspective in effective decision making and execution, appraisal reviews, project peer assists, internal audits, and crafting business processes. Also managed the integration of drilling, environment and regulatory procedural advising, lease requirements in the frontier areas with rig strategy and portfolio fit including new country entry discussions.

Devon Energy Corporation     2006 to 2010
Senior Advisor, Domestic & International Operations
Managed oil and gas projects and provided technical expertise in field development planning with a multi-disciplinary team skilled in sub-surface, drilling, operations, and commercial development. Provided support in data room set-up and presentation preparation for prospective partners. Organized and executed offshore work for field diagnosis and necessary repairs. Directed concept development for Brazil pre-salt discoveries along with existing Polvo platform and FPSO expansion work for additional wells and facilities. Served on multi-disciplinary team with geologist, reservoir, commercial, and drilling team to evaluate, appraise, and propose development plans for Brazil pre-salt fields, China, and Gulf of Mexico (GOM).

Managed the process of upgrades to ongoing international operations West Africa and Egypt while also developing strategies for new developments in Azerbaijan, Onshore Europe, etc.. Provided technical counsel during farm-ins and farm-outs in exploration and exploitation support initiatives, such as lease bids, prospect evaluation, development plans, cost estimates, and economics and eventually supported divestitures.

Kerr-McGee Oil & Gas (Anadarko)     2003 to 2006
Consultant – Project Manager, Subsea Systems & Facilities
Managed subsea tieback projects from concept to completion which involved engineering and equipment installation followed by commissioning and operations support. Utilized resources to ensure on-time and under-budget project completion. Led multiple projects in GOM, defining sub-sea layout, architecture, selection, and procurement of equipment as well as supporting equipment manufacturing, fabrication, and offshore installation in GOM.

Halliburton     2000 to 2003
Principal Facilities Engineer
Performed field development evaluations, capital cost reduction, and new technology implementation with multi-disciplinary team consisting of sub-surface, drilling, and facilities in Venezuela, Indonesia, and GOM. Performed miscellaneous studies on rig-less well intervention, wire-line, coiled tubing, hydraulic workover techniques and applications, in addition to technical issues in sub-sea well intervention which led to the establishment of front-end capability status in Houston market.

Paragon Engineering Services, Inc. (Worley)     1996 to 2000
Facilities Project Engineer
Managed onshore plants and offshore facilities developments with PFDs, P&IDs, equipment sizing and layout which was followed by equipment package procurement, installation, and hook-up in the GOM. Performed specialized studies in field optimization, de-bottlenecking, safety studies, lightweight topsides, and deepwater platform concepts evaluation.

Petro-Marine Engineering of Texas, Inc (Saipem)     1994 to 1996
Senior Engineer
Provided offshore platform design followed with fabrication and installation support and performed facility work for marginal field developments in the GOM.

Brown & Root Energy Services (KBR)     1989 to 1994
Marine Engineer
Executed platform design, specialized studies, and conceptual design of deepwater platforms as well as compliant piled towers. Delivered design for offshore platforms in the GOM and the South Natuna Sea.

Geographical Areas of Experience

Africa and Middle East
Nigeria
Equatorial Guinea
Côte d’Ivoire
Ghana
Senegal
Egypt
Abu Dhabi
Qatar
Azerbaijan
Israel

Asia
China
Indonesia
Bangladesh

North America
Gulf of Mexico
Gulf Coast
Colorado
Pennsylvania
Virginia
Nevada
Canada
Mexico

Latin America
Trinidad
Venezuela
Brazil
Nicaragua
Falklands

Europe
U.K. (North Sea)
Romania (Onshore fields)

Professional Associations

Licensed Professional Engineer (PE) in the State of Texas
Project Management Profession (PMP)
Marine Technology Society (MTS) Fellow
Program Chair, Offshore Technology Conference (OTC)

Teaching and Presentations

Instruction Course on Field Development Planning
Numerous Panels Presentations

Publications

Over 40 Technical Publications

e.g. SPE Papers, Offshore Magazine, Oil and Gas Journal

Photo of Eric Nelson, P.E. Executive Vice President

Eric Nelson, P.E. , Executive Vice President

Education
BS degree, chemical engineering, University of Tulsa, 2002 MBA degree, University of Texas, 2007 (Dean’s Award for Academic Excellence) Various Exxon (internal) and industry-sponsored seminars and short courses

Summary of Areas of Expertise
More than 12 years of reservoir engineering experience with a major integrated oil and gas company and a leading engineering consulting firm.…Read More

Education

BS degree, chemical engineering, University of Tulsa, 2002
MBA degree, University of Texas, 2007 (Dean’s Award for Academic Excellence)
Various Exxon (internal) and industry-sponsored seminars and short courses

Summary of Areas of Expertise

More than 12 years of reservoir engineering experience with a major integrated oil and gas company and a leading engineering consulting firm.

Reservoir Engineering:  Frequent use of traditional reservoir engineering principles, including performance analysis, volumetric analysis, petrophysical analysis, well-test analysis, material-balance calculations, PVT analysis, and other reservoir engineering applications.

Reserve Determinations:  Well acquainted with Securities and Exchange Commission (SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves definitions, as most reserve certifications adhere to these guidelines.

Integrated Reservoir Studies:  Frequently work with geologists and geophysicists on various projects, and have a working knowledge of geological and geophysical concepts as applied to reservoir performance.

Economic Evaluations:  Have conducted numerous oil and gas economic evaluations for use in SEC reports, IPO filings, bank reports, and acquisition and divestiture transactions.

Summary of Employment

Ryder Scott Co. LP    2005 to Present
Executive Vice President
Evaluate and audit reserves for a wide variety of clients, reservoirs, and locations; areas worked include Mexico, the Gulf of Mexico, Venezuela, onshore Texas, and offshore Africa.  Primary work emphasis has been in the GOM.  Lead engineering work on several clients and play a critical role in large-scale projects such as the evaluation of an LNG project in Angola.  Responsibilities involve frequent interaction with clients for data collection and work reviews, actual reserves work through performance analysis/volumetrics/material balance methods, and the creation of cashflows for RSC greenbook reports.  Reserves evaluation work has necessitated the understanding and application of current SEC and SPE-PRMS reserves definitions.  Frequent use of reserves evaluation software such as ARIES, PHDWin, and PEEP to set up and analyze forecasted reserve volumes and cash flows.

ExxonMobil Corp.    2002 to 2005

Final role was as reservoir engineer for a collection of mature oil-producing assets in West Texas.  Work focused on day-to-day reservoir surveillance and on identifying and writing workovers for clean-out/stimulation and add pay jobs; duties required intimate usage of surveillance software such as OFM for decline curve analysis and PEEP for economic evaluations.

Formerly the main reservoir simulation engineer for a major heavy oil project in Venezuela.  An Orinoco heavy oil belt development, at the time the project was a top 10 asset for XOM.  Work involved creation of multiple models to evaluate various project proposals – efforts were part of the basis for approval of major project expansion and used to optimize drilling locations.  Work involved heavy usage of Microsoft Office products; for instance, created and modified Excel VBA scripts to post process and analyze simulation results and to organize large volumes of data.  Also created presentations for reviews with management.

Geographical Areas of Experience

Africa and Middle East
Angola
United Arab Emirates

South America
Argentina
Bolivia
Venezuela

North America
Mexico
South and East Texas
Gulf Coast Basin
Offshore Gulf of Mexico (Shelf and Deepwater)

Far East
Australia
China

Professional Associations

Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers

Photo of Christine Neylon, P.E. Vice President

Christine Neylon, P.E. , Vice President

Education
MS degree, petroleum engineering, University of Houston, 2011 BA degree, mathematics, magna cum laude, University of St. Thomas, 2008

Summary of Areas of Expertise
Waterflood sensitivity analysis investigating uncertainties in the relative permeability and the permeability and porosity layering of a given reservoir. Relative permeability and layering probability functions created and used to capture the range of results possible from the waterflood.…Read More

Education

MS degree, petroleum engineering, University of Houston, 2011
BA degree, mathematics, magna cum laude, University of St. Thomas, 2008

Summary of Areas of Expertise

Waterflood sensitivity analysis investigating uncertainties in the relative permeability and the permeability and porosity layering of a given reservoir. Relative permeability and layering probability functions created and used to capture the range of results possible from the waterflood.

Waterflood operational analysis of an existing waterflood investigating current production techniques and remaining reserves given production and injection history, water saturation profiles, and permeability profiles.

Pressure transient analysis utilizing Saphir to determine flow regimes, formation permeability, and skin.

Reservoir characterization projects utilizing Halliburton’s Decision Space Earth Modeling simulator including variogram modeling, 3D reservoir modeling, and uncertainty analysis.

Optimization of production, processing, and delivery of natural gas including a field development plan, facilities and transportation design, and economic analysis in order to meet requirements of a natural gas contract.

Fracture design optimization by applying unified fracture design approach for both natural gas and oil reservoirs. Parametric study to determine design changes due to variations in formation stress contrast, volume of proppant mass injected, and formation permeability.

Summary of Employment

Ryder Scott Co. LP     2011 to Present
Vice President
Perform evaluations of reserves, field performance and economics applying various engineering techniques. Emphasis on reserve estimation in accordance with Securities and Exchange Commission (US SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves estimation guidelines.  Projects include performing detailed full-field analysis, annual SEC filings, property sales and acquisitions, and project feasibility studies.

Ryder Scott Co. LP    2008 to 2011
Petroleum Engineering Technician
Create economic models for fields based on analysis of historical performance, joint venture contracts and agreements, local and federal government regulations and taxes, lease operating expenditure statements, and plant product statements in order to determine economic viability of projects.  Prepare cash flow reports using various economic software programs. Projects include reports for Securities and Exchange Commission (US SEC) filings, Canadian Reserve Reporting Regulations (NI-5101) filings, Colombian National Agency of Hydrocarbons (ANH) filings, property sales and acquisitions, and fair market value estimates.

Professional Associations

Member, Society of Petroleum Engineers

Photo of Mark A. Nieberding, P.E. Vice President

Mark A. Nieberding, P.E. , Vice President

Education
BS degree, petroleum engineering, University of Tulsa, 1985 MS degree, petroleum engineering, University of Tulsa, 1988 MBA, University of Texas at Dallas. Dallas, 2012

Summary of Areas of Expertise
Over 33 years of experience in petroleum engineering, specializing in reservoir engineering and economic evaluation. Experienced in most North American basins, now focused primarily on international projects.…Read More

Education

BS degree, petroleum engineering, University of Tulsa, 1985
MS degree, petroleum engineering, University of Tulsa, 1988
MBA, University of Texas at Dallas. Dallas, 2012

Summary of Areas of Expertise

Over 33 years of experience in petroleum engineering, specializing in reservoir engineering and economic evaluation. Experienced in most North American basins, now focused primarily on international projects. Evaluation, assignment and reconciliation of reserves and resources under SEC, and SPE/AAPG/WPC/SPEE guidelines. Reserves and resources Valuation for acquisitions and divestitures, Sarbanes-Oxley control compliance, financial, international fiscal regime, unconventional and reserve booking issues.

Summary of Employment

Ryder Scott Co. LP    2018 to Present
Vice President
Perform reserves estimates in accordance with U.S. Securities and Exchange Commission and Society of Petroleum Engineers guidelines.

BP Lower 48 Onshore Region     2012 to 2018
Reserves Planning Engineer
Performed field development forecasting and planning optimization, evaluation of the proper risk categories. Estimated reserves and resources volumes, capital expenditure metrics, and audited financial analysis of asset valuations.

EXCO Resources        2009 to 2012
Reserves Manager
Estimated reserves and resources volumes. Coordinated third party auditors and reserves consultants and responsible for documenting all SOX control compliance regarding reserves estimates and financial audit/analysis of asset valuations for bank loan requirements and internal project approvals.

DeGolyer and MacNaughton        2001 to 2009
Vice President – Senior Petroleum Engineer
Categorized, forecasted and estimated reserves and resources volumes, as well as provided asset valuations for existing assets and acquisition opportunities for client-based projects throughout Europe, Russia and Asia. Taught SEC and SPE PRMS Reserves and Resources evaluation classes.

Gaffney, Cline and Associates        1997 to 2001
Senior Petroleum Engineer
Categorized, forecasted and estimated reserves and resources volumes, as well as provided asset valuations for existing assets and acquisition opportunities for client-based projects throughout Americas, Southeast Asia and North Sea.

Primrose Operating Co.        1995 to 1997
Petroleum Engineer
Technical evaluation and analysis of field development and operations for north-central Texas and Oklahoma assets.

Plains Petroleum Operating Co. 1992 to 1995
Exploitation Engineer
Provided reservoir- and drilling-engineering analyses to support field development activity for assets in Permian Basin, Central Texas, Mid Continent and Rockies regions.

Arco Oil & Gas Co. 1988 to 1991
Operations Analytical Engineer
Provided reservoir- and facilities-engineering analyses for assets in Oklahoma and North Texas. Focused on infill drilling, FERC certification of a tight gas field and waterflood sweep optimization.

Tulsa University Artificial Lift Projects 1985 to 1988
Graduate Research Assistant
Conducted academic research on the flow performance of a nitrogen-loaded gas-lift valve. Developed a dimensionless empirical model to predict gas-lift valve performance. Facilitated more reliable gas-lift system design.

Geographical Areas of Experience

United States
All Major Onshore Basins

International
Russia
Kazakhstan
North Sea
Argentina
Venezuela
Bolivia
Brazil
Colombia
Ecuador
Peru
Mexico
India
Indonesia
Singapore
Malaysia
Myanmar

Professional Associations

Registered Professional Engineer in the State of Colorado
Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Evaluation Engineers
Member, Society of Petroleum Engineers

Photo of Ekene Ohaegbu Senior Petroleum Engineer

Ekene Ohaegbu , Senior Petroleum Engineer

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Reservoir Engineering
  • Well Performance Analysis
  • Field Development Planning
Education
BEng degree, Petroleum Engineering, Federal University of Technology, Owerri, Nigeria, 2002 MS degree, Petroleum Engineering, Texas A&M University, 2006 MBA, University of Houston-Victoria, 2020
Summary of Areas of Expertise
Petroleum engineer with 14 years of diverse experience in evaluating oil and gas properties.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Reservoir Engineering
  • Well Performance Analysis
  • Field Development Planning

Education

BEng degree, Petroleum Engineering, Federal University of Technology, Owerri, Nigeria, 2002
MS degree, Petroleum Engineering, Texas A&M University, 2006
MBA, University of Houston-Victoria, 2020

Summary of Areas of Expertise

Petroleum engineer with 14 years of diverse experience in evaluating oil and gas properties. Expertise includes oil and gas reserves evaluation, reservoir management, reserves estimation and reporting, economic evaluation, business planning and budgeting, and acquisition & divestiture.

Economic Evaluations: Economic evaluation experience in various geographical areas worldwide. Determination of oil and gas reserves (deterministic and probabilistic) including cost analysis studies and economic appraisal of properties. Responsible for assessments/valuations for oil and gas operated assets in the U.S for determination or redetermination of RBLs, 2nd Lien Term loans, and investment decision purposes. Completed over 20 deals ranging from $20 million to $1 Billion in transaction value. Evaluated economics and profitability for D&C programs, facilities, and pipeline projects exceeding $1 Billion utilizing ARIES, PHDWIN, and Enersight. Maintained production forecast, capital cost, and operating cost information in the database for use in quarterly reserve reporting: ensured costs and forecasts aligned with actuals.

Reserve Certifications: Worked with the SEC and SPE-PRMS reserve definitions on a daily basis and therefore developed a familiarity with the application of these definitions in the classification of reserves. Dealt with the reserve definitions set by other international exchange commissions. Interacted with the U.S. Securities and Exchange Commission on behalf of clients and have advised clients on approaches to their reserves reporting.

Acquisition and Divestiture Work: Conducted numerous reservoir evaluation studies for use in both acquisitions and divestitures of oil and gas properties for many of Ryder Scott’s clients.

Development Plans: Extensive experience onshore and offshore, preparing drilling schedules and development plans to achieve optimum economics while adhering to market demands and complying with equipment and logistical limitations.

Summary of Employment

Ryder Scott Co. LP     2022 to Present
Senior Petroleum Engineer
Evaluate petroleum reserves, field performance, and economics by applying various engineering techniques. Emphasis on reserves estimation in accordance with the U.S. Securities and Exchange Commission and Society of Petroleum Engineers Petroleum Reserves Management System.

EP Evaluation     2020 to 2022
Petroleum Engineering Consultant
Performed thorough technical evaluations of energy operator’s proved oil and gas reserves and cash flow forecasts. Identified, measured, and accounted for risks due to price, operations, and inflation. Delivered evaluation results that encapsulated the borrowing base recommendation, economics estimation, principal assumptions, downside risks, and upside potential associated with the oil and gas fields to the clients. Attended and participated in bank/lender meetings, supporting technical projects, and business development activities.

Marathon Oil Company     2017 to 2018
Senior Planning Analyst
Coordinated quarterly planning cycle. Conducted kickoff meetings with asset managers, delivered annual budgets, and provided short-term and long-term business plans. Worked with asset reservoir engineers to understand reserve estimation and booking process, ensuring that reserves/forecast provided to planning follows SEC guidelines. Collaborated with reservoir engineers for the quarterly planning cycle updates to ensure reserves, OPEX, CAPEX, and FDP supplied to business planning reflect actuals. Analyzed the impact of engineering inputs (activity schedule, type curves, drilling rates, etc.) update to the budget, reserves, and asset value. Effectively collaborated with asset functional teams and management teams to provide production and capital forecast to facilities, marketing, and facilities department to aid in contracts negotiation and facilities planning and budgeting process. Built, optimized, and managed 3Esi Enersight planning baseline models and scenario models.

Murphy Exploration and Production Company     2012 to 2016
Senior Reservoir Engineer
Managed reserves for wells in the Eagle Ford and South Louisiana fields. Performed year-end reserves estimation and reporting for proved reserves and rendered quarterly updates in compliance with company and SEC guidelines. Managed two multidiscipline field development planning teams and delivered and implemented comprehensive field development plans for various eagle ford shale assets. Completed Reserves/asset evaluation and conducted due diligence for acquisition and divesture of fields located in South Louisiana, Permian, and eagle ford. Conducted reservoir analysis for optimal completion and well spacing determination, and managed various engineering projects, including reservoir simulation projects for optimum well spacing determination. Supported the asset planning team by furnishing reservoir engineering inputs and field development plans during the business planning cycle, including the annual budget and long-range planning.

Corporate Reserves Coordinator     2013 to 2014
Successfully coordinated fiscal year-end proved reserves process and quarterly reserves updates for assets with business units, ensuring reserves compliance with SEC and PRMS guidelines. Reviewed BU reserve estimates and facilitated year-end audits with third-party reserve auditors/consultants. Monitored and analyzed changes to reserves due to production performance and operations. Prepared reserves reconciliation and reports for management, accounting, regulators, investors, and lending institutions.

Quicksilver Resources     2009 to 2012
Reservoir Engineer
Conducted reserves evaluation and provided year-end reserves estimates and quarterly reserve updates in compliance with company and SEC guidelines. Worked closely with external reserves auditors to guarantee proved reserves estimates meet SEC regulations. Managed South Barnett asset production, reserves, and development. Generated field development plans in collaboration with cross-functional teams. Maintained forecasts, conducted well performance analysis and economic analysis to ensure the profitability of assets. Assisted the new ventures department in asset valuation and provided reservoir-engineering analysis for Quicksilver’s Permian acquisition. Interfaced with business planning analyst during planning/budget, LRP cycles, delivering field development plans and production, OPEX and CAPEX forecasts for strategic business planning.

Schlumberger Data and Consulting Services     2006 to 2009
Reservoir Engineer
Built full-field models or sector models for reservoir simulation and production forecasting for field development planning, reserves estimation, and economic evaluation. Built pipeline network models and reservoir models for underground gas storage fields for major gas companies in the Appalachian Basin. Forecasted gas volumes for injection and withdrawal seasons. Created multiple reservoir simulation models to predict well performance/production for reserve estimation, field deliverability projects, infill studies, and development planning purposes.

Geographical Areas of Experience

Africa and the Middle East
Angola (Offshore)
Abu Dhabi
Cameroon
Congo
DR of Congo
Egypt
Gabon
Ghana
Nigeria
Qatar
Tunisia
West Africa

Oceania
Australia

North America
Barnett Shale
Permian Basin
Central and East Texas
Eagle Ford
Gulf of Mexico
Rocky Mountain Region
Mexico

Central and South America
Argentina
Bolivia
Colombia
Ecuador
Guatemala
Peru
Trinidad and Tobago
Venezuela

Central and Southeast Asia
China
Indonesia

Europe and Former Soviet Union
Germany
Greece
Turkmenistan
United Kingdom

Photo of Amara N. Okafor, P.E. Senior Vice President

Amara N. Okafor, P.E. , Senior Vice President

Key Attributes and Proficiencies
  • Reserves and Economic Evaluations
  • Reservoir Simulation
  • Unconventional Resource Play Evaluation
Education
B. Eng. degree, petroleum engineering, Federal University of Technology in Owerri, Nigeria, 2001 MS degree, petroleum engineering, Texas A&M University, 2005

Summary of Areas of Expertise
Over 14 years of diverse experience in classical reservoir engineering with emphasis on reservoir simulation modeling.…Read More

Key Attributes and Proficiencies

  • Reserves and Economic Evaluations
  • Reservoir Simulation
  • Unconventional Resource Play Evaluation

Education

B. Eng. degree, petroleum engineering, Federal University of Technology in Owerri, Nigeria, 2001
MS degree, petroleum engineering, Texas A&M University, 2005

Summary of Areas of Expertise

Over 14 years of diverse experience in classical reservoir engineering with emphasis on reservoir simulation modeling.

Reserves Evaluation and Certifications: Experience includes conducting reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) definitions. Expert in the evaluation of reserves and future income under a variety of fiscal terms and model contracts.

Economic Evaluations: Economic evaluation experience in various geographical areas. Experience includes the preparation of sales packages for acquisition, divestiture and fair market value (FMV) evaluations using the Society of Petroleum Evaluation Engineers (SPEE) and Ryder Scott Internal guidelines.

Reservoir Simulation Studies: Experience in using software to characterize hydrocarbon fluids with equations-of-state (EOS). Experience in characterizing black oils, retrograde condensates, light oils, and critical reservoir fluids. Experience in full field dynamic modeling and optimization for field development planning and management.

Summary of Employment

Ryder Scott Co. LP    2015 to Present
Senior Vice President – Engineering
Evaluate petroleum reserves, field performance and economics applying various engineering techniques – emphasis on reserves estimation in accordance with U.S Securities and Exchange Commission and Society of Petroleum Engineers Petroleum Resources Management System. Projects include constructing and reviewing reservoir simulation models, performing detailed full-field analysis, estimating reserves for annual regulatory filings, conducting technical due diligence for property sales and acquisitions and undertaking project feasibility studies.

Marathon Oil Co.     2010 to 2015
Appraisal Reservoir Engineer – Gulf of Mexico Exploration
Conducted numerous integrated full-field simulation studies for resources estimation, property appraisal, acquisitions and divestitures, field development planning and probabilistic analysis. Involved in quick analysis of analog (field or well) performance data using material balance and nodal analyses. Provided engineering support to the Gulf of Mexico exploration-and-appraisal team to identify and rank potential opportunities. Monitored real time formation evaluation data to optimize value and cost of acquisition program. Conducted Worst Case Discharge Calculations for EP fillings and well permitting.

Reservoir Modeling Engineer – Gulf of Mexico Production
Worked in a multidisciplinary integrated modeling team to build and manage simulation models for history matching and forecasting of operated and non-operated assets. Analyzed PVT data and generated equation of state models for reservoir fluids using PVTSIM. Performed pressure transient analysis to estimate reservoir parameters for simulation studies. Prepared SCAL (relative permeability and capillary pressure data) and MDT data for reservoir characterization.

Schlumberger Data & Consulting Services        2005 to 2010
Reservoir Engineer
Conducted horizontal well reservoir modeling for history matching and forecasting of naturally fractured shale reservoirs in the Marcellus, Utica, Woodford and Barnett shale plays. History matched and forecasted coalbed-methane well performance through the modeling of multi-lateral wells in the Appalachian basins. Performed numerous gas storage reservoirs studies. Conducted reservoir modeling for estimating technically recoverable reserves. Prepared due diligence reports for A&D.

Geographical Areas of Experience

Midcontinent USA
Barnett shale
Woodford shale
Permian
Williston Basin (Bakken)

Appalachian Basin
Marcellus shale
Utica Shale

Gulf of Mexico
Onshore/Offshore

Offshore West Africa

Professional Associations

Licensed Professional Engineer (PE) in the State of Texas
Member, Society of Petroleum Engineers (SPE)

Photo of Daniel R. Olds, P.E. Managing Senior Vice President

Daniel R. Olds, P.E. , Managing Senior Vice President

Key Attributes and Proficiencies
  • Reserves Evaluations
  • International Projects
  • Training – 2018 SPE PRMS
  • Competent Person’s Reports

Education
BS degree, Petroleum Engineering, West Virginia University, 1981 MBA degree, University of Houston, 1991

Summary of Areas of Expertise
Over 35 years of experience in petroleum engineering, specializing in reservoir engineering and economic evaluation.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • International Projects
  • Training – 2018 SPE PRMS
  • Competent Person’s Reports

Education

BS degree, Petroleum Engineering, West Virginia University, 1981
MBA degree, University of Houston, 1991

Summary of Areas of Expertise

Over 35 years of experience in petroleum engineering, specializing in reservoir engineering and economic evaluation. Experienced in most North American basins, now focused primarily on international projects. Reserves assignments under SEC, NI 51-101, and SPE/AAPG/WPC/SPEE guidelines with emphasis on regulatory compliance. Valuation for acquisitions and divestitures. Financial, fiscal regime, tax analysis, unconventional and LNG reserve booking issues. Expert witness and litigation support, including bankruptcy and workout restructuring. Currently Managing Senior Vice President and a member of the Board of Directors.

Economic Evaluations: Economic evaluation experience in various geographical areas. Experience includes the preparation of sales packages for divestiture.

Reserve Certifications: Reserves assignments under SEC, NI 51-101, and SPE/AAPG/WPC/SPEE guidelines with emphasis on regulatory compliance. Currently the vice chairman of the SPE Oil and Gas Reserves Committee. A member of the sub-committee that drafted the recent 2018 PRMS update. Dealt with the reserve definitions set by other international exchange commissions. Interacted with the U.S. Securities and Exchange Commission on behalf of Ryder Scott clients and have advised clients on approaches to their reserves reporting.

Acquisition and Divestiture Work: Experienced with reservoir evaluation studies for use in both acquisitions and divestitures of oil and gas properties for various Ryder Scott’s clients. Cognizant of the concept of short deadlines and highly confidential work involved, as well as the business and financial aspects of both acquisitions and divestitures and the importance of the due diligence process.

Summary of Employment

Ryder Scott Co. LP     2001 to Present
Managing Senior Vice President
Responsible for numerous recurring evaluation studies, both as an evaluation team leader and member. Team member for worldwide reserve audit committee for several clients. Unconventional experience in North America, South America, and Asia. Valuation projects for fiscal regime renegotiations and government certification audits. Tax modeling for PSC analysis. Expert witness for both state and federal courts. Elected to Ryder Scott Board of Directors 2014.

PricewaterhouseCoopers LLP     1992 to 2001
Manager in the Financial Advisory Services Group, a consulting group providing engineering and evaluation services to both in-house and external clients. Provided reserves reviews and audits, tax credit modeling, and acquisition & divestiture services. Acted as technical consultant to creditor’s committees in bankruptcy court, as well as general bankruptcy and workout services for both creditors and debtors.

Wintershall Energy     1984 to 1992
Manager of engineering and acquisitions at a subsidiary of German-owned BASF Corporation, with offshore and onshore production in most of the major basins of the United States. Evaluated, acquired, integrated, and divested more than $300 million in producing properties and an interstate gas pipeline. Conducted reservoir engineering, project economics, offshore lease sale evaluation, and capital budgeting for all of the organization’s activities.

Prior experience with Tricentrol Resources, Cities Service, and Science Applications International.

Geographical Areas of Experience

Africa and Middle East
Bahrain
Brunei Darussalam
Congo (Brazzaville & DRC)
Egypt
Nigeria
Oman
Qatar
Turkey
United Arab Emirates
Yemen

North America
United States – most major basins
Canada

Central and South America
Argentina
Colombia
Trinidad
Venezuela

Europe and Former Soviet Union
Former Soviet Union
Kazakhstan
North Sea

Central and Southeast Asia
Australia
China
Indonesia
Kazakhstan
Malaysia

Professional Associations

Licensed Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers (SPE)
Member, Society of Petroleum Evaluation Engineers (SPEE) – President in 2005
Various other industry organizations and task forces

Photo of Hugo Armando Ovalle, P.E. Senior Vice President – Group Coordinator

Hugo Armando Ovalle, P.E. , Senior Vice President – Group Coordinator

Education
Dual MS degree, petroleum engineering and natural gas management and engineering, University of Oklahoma, in progress. BS degree, petroleum engineering, University of Oklahoma, 2001

Summary of Employment
Ryder Scott Co. LP     2010 to Present
Senior Vice President – Group Coordinator Performing evaluations of reserves, field performance and economics using deterministic and probabilistic methods. …Read More

Education

Dual MS degree, petroleum engineering and natural gas management and engineering, University of Oklahoma, in progress.
BS degree, petroleum engineering, University of Oklahoma, 2001

Summary of Employment

Ryder Scott Co. LP     2010 to Present
Senior Vice President – Group Coordinator
Performing evaluations of reserves, field performance and economics using deterministic and probabilistic methods.  This experience includes conducting reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) definitions.  Evaluation of reserves and future income under a variety of fiscal terms and model contracts such as Production Sharing Contracts and Agreements(PSC & PSA), Joint Venture Contracts and Agreements (JVC & JVA), Risk Sharing and Service Agreements.

Ryder Scott Co. LP     2008 to 2010
Consulting Petroleum Engineer
Performing evaluations of reserves, field performance and economics using deterministic and probabilistic methods.  Emphasis on reserves estimation in accordance with SEC and SPE guidelines.

Accumyn Consulting
Providing authoritative studies, strategic advisory services, and independent testimony for private and public sector industries, government agencies and law firms.

Petroleum Services Inc.     2005
Engineering Assistant
Conducted research, performed data analysis, and assisted in petrophysical modeling of several reservoirs.

Minority Engineering Program     1998
Tutored engineering students at University of Oklahoma in areas related to engineering studies.

Geographical Areas of Experience

Algeria
Argentina
Australia
Bolivia
China
Colombia
Mexico
Thailand
Trinidad

Professional Associations

Member, Society of Petroleum Engineers

Participation in Recent Ryder Scott Major Projects

Evaluation of Reserves for Pemex’s Northern Region     2008 to 2011
Performed the evaluation of several fields in the Veracruz area.  The Northern Region evaluation includes approximately 30,000 wells and more than 350 fields.

Evaluation of Reserves for CNOOC     2008 to 2011
Performed the evaluation of several CNOOC fields.  CNOOC is the largest state-owned oil company and the largest offshore oil and gas producer in China.

Evaluation of Reserves for Ecopetrol     2008 to 2011
Performed the evaluation of several Ecopetrol fields.  Ecopetrol is the largest oil company in Colombia, and one of the five main oil companies in Latin America.

Evaluation of Gas Reserves and Resources of the Northwest Shelf Australia     2008 to 2011
Performed the certification of reserves for the major gas fields in the North West Shelf Australia.  North West Shelf Venture is the largest oil and gas resource development in Australia and accounts for 40% of Australia’s oil and gas production.

Evaluation of Gas Reserves and Resources for the Country of Trinidad and Tobago     2009 to 2011
Performed the certification of reserves for several fields in a project to determine the gas reserves and resources for the entire country of Trinidad and Tobago. With the commissioning of the Atlantic LNG plants, Trinidad and Tobago has become a major player in the international gas market. The Ministry of Energy and Energy Services engaged Ryder Scott Company to conduct this evaluation as part of their Gas Master Plan.

Review of Reserve Reports Submitted to the National Agency of Hydrocarbons of Colombia     2010
Performed a study requiring the appraisal of approximately 70 reserve reports submitted to the National Agency of Hydrocarbons (ANH) by as many companies.  Among the primary objectives of the study was the review of the methodologies and procedures for reserve estimations in the subject reports and opine as to the appropriate and correct use of such procedures in relation to compliance with SPE-PRMS reserves definitions.

Evaluation of Oil and Gas Reserves and Resources for Bolivia     2010
Performed the certification of reserves for several fields in a project to determine the oil and gas reserves and resources for the country of Bolivia.  The project included the evaluation of geologically complex naturally fractured fields in southern Bolivia.

Languages

Fluent in English and Spanish

Photo of Miles R. Palke, P.E. Managing Senior Vice President – Group Leader

Miles R. Palke, P.E. , Managing Senior Vice President – Group Leader

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Reservoir Modeling
  • Teaching
  • Process Audits

Education
BS degree, petroleum engineering, Texas A&M University, 1993, Magna Cum Laude, with University Honors MS degree, petroleum engineering, Stanford University, 1996

Summary of Areas of Expertise
More than 23 years of reservoir engineering experience with heavy emphasis on reservoir simulation studies.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Reservoir Modeling
  • Teaching
  • Process Audits

Education

BS degree, petroleum engineering, Texas A&M University, 1993, Magna Cum Laude, with University Honors
MS degree, petroleum engineering, Stanford University, 1996

Summary of Areas of Expertise

More than 23 years of reservoir engineering experience with heavy emphasis on reservoir simulation studies. Areas of expertise include sector and full field modeling, fluid characterization, compositional simulation, coalbed methane recovery, gas storage operations, nodal analysis, well test analysis, and material balance analysis. Focus on the evaluation of simulation models for use in reserves and resource estimation, and the review and critique of models constructed by others. Extensive experience with ECLIPSE, ACRES, IMEX, Pan Systems, Saphir, MBAL, Prosper, and GAP. Additionally, considerable experience in traditional reserves estimation and economic evaluation techniques. The following is a list of some specific examples of various types of experience.

Reservoir Simulation Studies: Fluid Characterization Studies: Experience in using software to characterize hydrocarbon fluids with equations-of-state (EOS). Experience in characterizing black oils, retrograde condensates, light oils, and critical reservoir fluids.

Well Test Analysis, Design and Supervision: Performed pressure transient analysis on tests of both oil and gas wells. The results include estimation of well damage or stimulation for operations purposes, and development of reservoir parameters for simulation purposes. Regions include Gulf of Mexico, Appalachia, Texas, California, Canada, and Mongolia.

Material Balance Studies: Performed numerous material balance analysis studies to estimate the size of reservoirs, or to assess the degree of communication between fault blocks.

Gas Storage Studies: PPerformed numerous studies of gas storage reservoirs. Studies include full field simulation of depleted gas reservoirs, assessment of inventory, and investigation of feasibility of over-pressuring. Also performed fatal-flaw screening surveys of potential candidate storage reservoirs.

Reserves And Economics Studies: Reserves and economics assessments of producing properties based on decline-curve and volumetric analysis.

Probabilistic Studies: Performed simulation studies featuring multiple equiprobable realizations. Extensive experience with the use of the Monte Carlo methodology for reserves estimation.

Value of Information & Decision Engineering: Used the Decision Tree methodology to help guide drilling and completion decisions, and the Value of Information methodology to economically justify the acquisition of costly data-sets.

Field Development Planning: Extensive experience with field development planning, with emphasis on deepwater GOM properties.

Well Design and Drilling Support: Extensive experience in optimizing well and completion designs, and monitoring real time drilling results while recommending adjustments to optimize the data acquired and cost of operations.

Reserve and Corporate Process Audit: Has participated as a third party participant in numerous corporate review processes for major IOCs and NOCs providing an objective industry viewpoint on topics such as whether corporate reserves are appropriately estimated, whether the reserves estimation processes should result in reliable estimates, and whether other corporate processes should result in the desired reliability of outcome.

Summary of Employment

Ryder Scott Co. LP     2010 to Present
Managing Senior Vice President, Group Leader, Reservoir Simulation
Responsible for conducting technical studies, focused on reservoir simulation, and field studies. Elected to the Board of Directors in 2019.

BHP Billiton     2002 to 2009
Subsurface Engineering Manager GOM Joint Interest Unit – Atlantis (2009)
Responsible for leading technical and economic analysis for participation elections on a major non-operated asset. Championed approval of gross expenditure exceeding $200 Million within a 6 month span. Responsible party for all planning activities associated with the asset, such as development planning, and budget preparation.

Subsurface Engineering Manager Trinidad and Tobago Production Unit 2007 to 2009
Responsible for leading technical and economic analysis required by BHP Billiton’s T&T assets. Included supervising Geological and Geophysical studies, reservoir simulation model preparation, reserves estimation, rate forecasting, and infill well design. Also responsible for supporting a major capital project designed to monetize BHP Billiton’s gas reserves in Trinidad and Tobago. Additionally, responsible for planning processes, such as budget preparation.

Senior Staff Reservoir Engineer, Neptune Project 2003 to 2007
Responsible for forecasting production and reserves from deepwater properties, developing and maintaining reservoir simulation models, designing conducting and interpreting deepwater, rig-based flow back tests. Significant experience conducting value of information, and decision-tree exercises. Additionally, significant experience with well and completion design and optimization, as well as supporting real-time drilling and completions activities.

Senior Reservoir Engineer, GOM Production Unit 2002 to 2003
Responsible of forecasting production and reserves from deepwater properties. Tools used included reservoir simulation, material balance, nodal analysis including integrated production modeling, pressure transient analysis, and economic analysis.

Ryder Scott Co. L.P.     1998 to 2002
Employed on a wide variety of simulation, characterization, well test analysis, and material balance problems. Act as team member on simulation or traditional reservoir engineering analysis projects, and as leader/coordinator for gas storage development projects and full field simulation studies.

ARCO Exploration & Production Technology     1996 to 1998
Research Engineer, Reservoir Studies Group
Assigned to assist ARCO operating companies with challenging reservoir studies, both traditional and simulation. Developed and ran fully-compositional sector models designed to compare different recovery mechanisms, including gas injection and waterflooding. Assessed the impact of relative permeability, make-up gas composition, and production constraints on miscible and near-miscible floods. Developed scale-up code to forecast field-wide recovery from sector models, including influence of variable thickness, permeability, and expected operating constraints. Also responsible for converting a full field black-oil model to fully-compositional mode. Further assisted in simulating miscibility experiments, assessing NGL make-up requirements to maintain miscibility, and simulating core-flood experiments.

Assisted in preliminary engineering study, gathering and integrating field data for a frontier coalbed methane project. Designed scripts to automatically build a full field model of the field for the purpose of optimizing a pilot project.

Cawley, Gillespie, & Associates     Summer 1995
Updated the reservoir characterization in an existing field simulation model to account for subsequent production history.

Hunt Petroleum Corp.     Summer 1994
Primary project was to create a set of database programs to handle data entry, report writing, record keeping, data analysis, and inventory for the company pump shop.

Chevron U.S.A., Inc.     Summer 1993
Created summary well records for a neglected light oil property.  Proposed testing, stimulation, deepening, and abandonment of wells.

Conoco     Summer 1992
Performed volumetric and decline-curve analysis to estimate reserves for a Gulf of Mexico platform.

Unocal     Summer 1991
Learned about platform operations while performing routine maintenance and measurement duties.

Geographical Areas of Experience

United States
Alaska
California
Mississippi
New York
Oklahoma
Pennsylvania
Texas

International
Algeria
Brazil
Canada
China
Colombia
India
Indonesia
Kuwait
Mexico

Professional Associations

Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers

Publications

Palke, M. R., Palmer, B.A. and Rietz, D. C.: “ANovel Simulation Model Review Process”, SPE 159274-MS, 2012 SPE ATCE, San Antonio, TX, 8-10 October, 2012.

Coludrovich, E. J., McFadden, J.D., Palke, M.R., Roberts, W.R., Robson, L.J.: “The Boris Field Well Management Philosophy – The Application of Permanent Downhole Flowmeters to Pressure Transient Analysis: An Integrated Approach”, SPE 90316, 2004 SPE ATCE, Houston, TX, 26-29 September, 2004.

Rietz, D.C. and Palke, M.R.: History matching helps validate reservoir simulation models, Oil and Gas Journal, p. 47, December 24, 2001.

Palke, M.R. and Rietz, D.C.: “The Adaptation of Reservoir Simulation Methods for Use in Reserves Certification Under Regulatory Guidelines or Reserves Definitions”, SPE 71430, 2001 SPE ATCE, 30 September – 3 October, 2001.

Palke, M. R., and Horne, R. N.: “Determining the Value of Reservoir Data by Using Nonlinear Production Optimization Techniques”, SPE 38047, presented at the SPE Asia Pacific Oil and Gas Conference, Kuala Lumpur, 14-17 April 1997.

Palke, M. R., and Horne, R. N.: “Nonlinear Optimization of Well Production Considering Gas Lift and Phase Behavior”, SPE 37428, 1997 SPE Production Operations Symposium, Oklahoma City, OK, 9-11 March 1997.

Nonlinear Optimization of Well Production Considering Gas Lift and Phase Behavior, Miles Palke, Masters Report, Stanford University, September 1996.

Photo of Robert J. Paradiso, P.E. Senior Vice President – Group Coordinator

Robert J. Paradiso, P.E. , Senior Vice President – Group Coordinator

Education
BS degree, petroleum engineering, Texas Tech University, 1979 Various Industry Schools, 1979 to Present Eclipse, TERAS School (stochastic economics), pressure transient analysis in tight rocks, characterizing formations with well tests, shaly sand analysis, open hole formation evaluation, drill stem testing, waterflooding, polymer profile improvement, technical writing, drilling practices, cement bond log interpretation, gas dehydration & sweetening, blowout prevention, production operations – Unit I, corrosion control, cathodic protection, fire control school, rod pumping seminar, econo-pac motor seminar, managing personal growth, social styles, problem solving-decision making

Summary of Areas of Expertise
More than 40 years of reservoir engineering experience, two and one-half years supervisory experience. …Read More

Education

BS degree, petroleum engineering, Texas Tech University, 1979
Various Industry Schools, 1979 to Present
Eclipse, TERAS School (stochastic economics), pressure transient analysis in tight rocks, characterizing formations with well tests, shaly sand analysis, open hole formation evaluation, drill stem testing, waterflooding, polymer profile improvement, technical writing, drilling practices, cement bond log interpretation, gas dehydration & sweetening, blowout prevention, production operations – Unit I, corrosion control, cathodic protection, fire control school, rod pumping seminar, econo-pac motor seminar, managing personal growth, social styles, problem solving-decision making

Summary of Areas of Expertise

More than 40 years of reservoir engineering experience, two and one-half years supervisory experience.  Economic evaluation of onshore and offshore properties, including the knowledge of what reservoir and geologic data is needed, where to get the data, and how to analyze and interpret the data.  Experience and personal drive have led to knowledge acquisition in the areas of reservoir engineering techniques, geological and geophysical interpretation techniques, log analysis and interpretation, and current completion technologies.

Reservoir Engineering – Coordinated and performed activities for reservoir, production, completion and drilling engineering for five deepwater Gulf of Mexico non-operated fields comprising two-thirds of reserve base and half of the daily production volumes of employer’s GOM division.  This included LOE approval and forecasting, PHA negotiations, facilities discussions and representation at operator meetings.

Perform economic evaluation, log evaluation, production forecasting, and reserve estimation of onshore and offshore producing properties.  Evaluate and recommend an 18 MM$ offshore acquisition as the engineering member of the new ventures team.  Performed economic evaluation, log evaluation, production forecasting, and reserve estimation for this evaluation.  Manage development of in-house Annual Reserve Report (utilizing ARIES) for 3000 wells (700 BCFE) resulting in a savings of $345,000 formerly paid to major outside consulting firm; decreased outside consulting services to audit function.  Develop and maintain specialized economic calculations utilizing ARIES, including run-time reports and database reports.  Interface directly with major outside consulting firm to coordinate audit of reserve report.

Detailed property evaluations for divestiture and acquisition (including a 300 BCF coalbed methane project in the Appalachian basin).  Reservoir exploitation and development in tight gas fields.  Technical presentations to senior management.  Data room presentation and material preparation.  Saved cost of drilling additional well utilizing pressure transient analysis of existing well.  Assure timely progression of two exploratory wells, coordinating efforts of six departments.  Maintain reserve estimates resulting in lowering a field DDA rate by $3.00/BOE.

Performed log analysis, reserve estimation and production forecasting, resulting in recommended recompletions yielding 300 BOPD flowing production rates.

Production and Operations Engineering – Production engineering representative on an evaluation team for the Bakr-Amer fields in the Eastern Desert of Egypt and offshore Gulf of Suez.  Provided decline curve analysis and production engineering recommendations for internal use in bid preparation for the assumption of operations and management of the fields.  Recommended stimulation method that increased oil production by 800 BOPD from four Delaware basin wells.  Reduced operating costs by $1,000/month with field-wide revision of corrosion program.  Coordinated all engineering activities for 1,000 wells producing 6,000 BOPD and 20 MMCFD, supervising staff of four engineers and three engineering assistants.  Designed and installed salt water disposal system resulting in savings of $25,000/month trucking cost.  Selected pumping well equipment.  Installed 150 well SCADA system with report generation capabilities.

Drilling Engineering – Drill and complete one Cherry Canyon well in the Myrtle B field in Loving County, Texas with a stabilized producing rate pumping 40 BOPD, 500 BWPD.  Implemented drilling program for 20,000’ Delaware basin gas well, saving $350,000 and 25 days’ rig time.  Evaluation and selection of cementing programs, liner hangers, and bottom hole drilling assemblies for Delaware basin wells.

Summary of Employment

Ryder Scott Co. LP     2008 to Present
Senior Vice President – Group Coordinator
Evaluate petroleum reserves. field performance and economics applying various engineering techniques.  Emphasis on reserves estimation in accordance with Securities and Exchange Commission (US SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves estimation guidelines.  Projects include performing detailed full-field analysis, annual regulatory SEC filings, property sales and acquisitions and project feasibility studies.

Devon Energy Corp.     2002 to 2008
Senior Reservoir Engineering Advisor, DW Production 2006 to 2008
Reservoir Engineering Advisor, DW Appraisal & Development 2003 to 2006
Reservoir Engineering Advisor, Acquisitions & Divestitures 2002 to 2003

El Paso Corp.     May 2002 to June 2002
Contract Reservoir Engineering

Halliburton Energy Services     2000 to 2002
Principal Reservoir Engineer
Integrated solutions/reservoir description

Santa Fe Snyder Corp.     1999 to 2000
Senior Reservoir Engineer

Halliburton Energy Services     1997 to 1999
Lead Well Engineer
Integrated solutions/reservoir description

Norcen Explorer Inc.     June 1997 to December 1997
Senior Reservoir Engineer

Amerac Energy Corp.     1995 to 1997
Senior Staff Engineer, February 1996 to June 1997
Operations Manager, July 1995 to  February 1996

Norcen Explorer Inc.     1994 to 1995
Reservoir Engineer

Transfuel Inc.     May 1994 to December 1994
Manager of Reservoir Engineering

Amax Oil & Gas Inc.    1991 to 1994
Staff Reservoir Engineer, 1992 to 1994
Senior Reservoir Engineer, 1991 to 1992

Union Texas Petroleum Corp.    1985 to 1991
Reservoir Engineer, 1990 to 1991
Production Engineer, 1985 to 1990

Getty Oil Company/Texaco Inc.    1979 to 1985
Area Engineer, Southeast New Mexico, 1984 to 1985
Production/Reservoir/Drilling Engineer, 1979 to 1984

Geographical Areas of Experience

Reservoir and production engineering experience in the Permian Basin, Delaware basin, San Juan Basin, and Gulf of Mexico (onshore, offshore shelf and deepwater).  Drilling experience in the Permian and Delaware Basins.

United States
Alabama
Alaska
California (offshore)
Colorado
Kansas
Louisiana
New Mexico
New York
Oklahoma
Texas
Gulf of Mexico

International
Malaysia
China
Venezuela
Argentina
Mexico
Egypt

Professional Associations

Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers

Skills Summary

  • Volumetrics
  • Decline Curve Analysis
  • Material Balance
  • Deterministic Economics
  • Probabilistic Evaluation
  • Acquisitions
  • Divestiture
  • Exploitation
  • Development
  • Log analysis
  • Reserve management
  • Production forecasting
  • Expense forecasting
  • Capital budget management
  • Completion design
  • Workover design

 

Computer Skills

  • PHDWin
  • ARIES
  • Peep
  • WEM
  • Crystal Ball
  • Excel
  • Word Access
  • PowerPoint
  • Outlook
  • FORTRAN
  • BASIC
  • REXX
Photo of Laurymar Perez-Mejias Senior Petroleum Engineer

Laurymar Perez-Mejias , Senior Petroleum Engineer

Education
BS degree, petroleum engineering, Oriente University, Venezuela, 2008

Summary of Areas of Expertise
Estimate reserves in accordance with U.S. Securities and Exchange Commission (SEC) rules and Society of Petroleum Engineers Petroleum Resources Management System (SPE-PRMS) guidelines.  Work includes reserves recovery evaluation, production scheduling and economic evaluations using decline-curve analysis and volumetric calculations. …Read More

Education

BS degree, petroleum engineering, Oriente University, Venezuela, 2008

Summary of Areas of Expertise

Estimate reserves in accordance with U.S. Securities and Exchange Commission (SEC) rules and Society of Petroleum Engineers Petroleum Resources Management System (SPE-PRMS) guidelines.  Work includes reserves recovery evaluation, production scheduling and economic evaluations using decline-curve analysis and volumetric calculations.  Familiar with widely used economic programs to analyze future estimated reserves volumes and cash flows.

Summary of Employment

Ryder Scott Co. LP     2013 to Present
Senior Petroleum Engineer
Evaluate petroleum reserves. field performance and economics applying various engineering techniques.  Emphasis on reserves estimation in accordance with Securities and Exchange Commission (US SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves estimation guidelines.  Projects include performing detailed full-field analysis, annual regulatory SEC filings, property sales and acquisitions and project feasibility studies.

Ryder Scott Co. LP     2010 to 2013
Contract Petroleum Engineer
Conduct technical and economic evaluations of oil and gas reserves in accordance to U.S. SEC and SPE-PRMS guidelines.
Evaluated reserves for Pemex (Northeast Region) 2010 to Present
Evaluate 11 gas fields in Burgos area.
Evaluated reserves for Pemex (Poza Rica Area) 2010 to Present
Evaluate more than 40 oil fields in the Poza Rica area.
Evaluated reserves for Ecopetrol SA 2012
Evaluated various fields for the largest oil company in Colombia, and one of the five largest oil companies in Latin America.
Evaluated reserves for PDVSA SA 2011 – 2012
Independently certified reserves for PDVSA partnerships (Empresas mixtas), such as Petrolera Indovenezolana (San Cristobal area) and Petrolera Sinovenezolana (Intercampo Norte and Caracoles areas).
Evaluated gas reserves and resources for Trinidad and Tobago 2011
Independently certified gas reserves for several fields.

Professional Associations

Member, Society of Petroleum Engineers

Photo of Ali A. Porbandarwala, P.E. Managing Senior Vice President

Ali A. Porbandarwala, P.E. , Managing Senior Vice President

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Audits/Certifications
  • Unconventional Analysis
  • Probabilistic Analysis
Education
BS degree, chemical engineering, University of Kansas, 2001 MBA degree, University of Texas at Austin Executive Program, 2007

Summary of Areas of Expertise
More than 17 years of industry experience with 10 years in reserves evaluations.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Audits/Certifications
  • Unconventional Analysis
  • Probabilistic Analysis

Education

BS degree, chemical engineering, University of Kansas, 2001
MBA degree, University of Texas at Austin Executive Program, 2007

Summary of Areas of Expertise

More than 17 years of industry experience with 10 years in reserves evaluations. Qualified SPEE reserves evaluator. Extensive experience in conducting reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) definitions.

Summary of Employment

Ryder Scott Co. LP    2008 to Present
Managing Senior Vice President
Perform evaluations of reserves, field performance and economics (developing future net income) using deterministic and probabilistic methods. Heavy emphasis to ensure reserves estimations are in accordance with Securities and Exchange Commission (US SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves guidelines. Projects include performing detailed full-field analyses, performing in-depth evaluation of fields for periodic SEC filings and supporting clients with property acquisitions and divestitures. Perform evaluation of reserves using probabilistic methods – studies involve integration of independent geologic and engineering variable distributions to arrive at a combined probabilistic project outcome distribution.

Exxon Mobil Corp    2001 to 2008
Project Management – Facilities Engineering, Development Co. 2005 to 2008

Process Engineer, Adriatic LNG Terminal
Conducted risk assessments and HAZOPS of facility design to support ongoing construction efforts to commence startup. Managed and approved onsite design changes during construction and ensured drawings reflected “as-built”. Modeled and reviewed wobbe index adjustment system to test robustness of the design to handle various types of LNG.

Engineering Coordinator and Process Engineer, Angola Block 15 Gas Gathering Project
Managed a $10 million contract for engineering services in Angola and Houston. Facilitated HAZOPS, risk assessments, design strategies, coordination activities between existing operations and development teams to ensure implementation of a safe, efficient and cost effective design. Coordinated design strategies to minimize production downtime during construction. Analyzed contractor productivity metrics (using cost and schedule tools) and provided guidance to maximize work output.

Project Engineer, Chad Development Projects
Obtained funding from joint-venture partners for the satellite projects. Managed a work plan for three drilling rigs to bring online a total of twenty-five new production wells. Coordinated the annual planning and budgeting of development fields with forecasts for future year’s expenditures. Managed monthly and quarterly management reports, and provided input for 10-K reports.

Project Management – Capital Projects Procurement Advisor, Global Services
Screened and qualified equipment suppliers and subcontractors for based on technical capabilities, financial strength, SHE and quality compliance. Coordinated bid evaluations during the tender process, conducted clarification meetings and facilitated bid equalizations in order to support a recommendation.

Ras Gas Offshore Expansion Project – Phase II – Dubai, U.A.E
Tendered, evaluated and negotiated a $600M proposal with three EPC contractors for two offshore platforms.

Kizomba A & B Floating Production Storage & Offloading (FPSO) Projects – Ulsan, South Korea
Facilitated engineering issues and expedited delivery of equipment to worksite.

Operadora Cerro Negro Project – Mid-term Gas Debottlenecking Facilities
Facilitated placement, fabrication and delivery of both long lead equipment and material equipment.

MEGI Zafiro Southern Expansion Area and Ekanga Notch Project
Negotiated contracts for the purchase of subsea completion systems to support offshore development.

Geographical Areas of Expertise

North America
Gulf of Mexico (Shelf and Deepwater)
Colorado
Louisiana
Mississippi
New Mexico
Texas
Wyoming
Mexico (Vera Cruz & Poza Rica)

Africa
Chad
Egypt
Angola
Nigeria
U.A.E.

South America
Bolivia
Colombia
Venezuela

Professional Associations

Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers
Tau Beta Pi (Honorary Engineering Society)

Photo of Guadalupe (Guale) Ramirez, P.E. Chairman and CEO

Guadalupe (Guale) Ramirez, P.E. , Chairman and CEO

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Bilingual – Fluent in English and Spanish
  • International Relations
  • Project Coordinator
Education
BS degree, mechanical engineering, Texas A&M University, 1976 Honors: Pi Tau Sigma and Tau Beta Pi Honorary Fraternities, Magna Cum Laude Degree Basic and advanced reservoir engineering short courses, Texas A&M University Industry sponsored short courses in well log evaluation, waterflooding, formation evaluation, pressure transient analysis, core analysis and reservoir simulation

Summary of Areas of Expertise
Over 40 years of diverse experience in evaluating oil and gas properties, more than 35 years with Ryder Scott.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Bilingual – Fluent in English and Spanish
  • International Relations
  • Project Coordinator

Education

BS degree, mechanical engineering, Texas A&M University, 1976
Honors: Pi Tau Sigma and Tau Beta Pi Honorary Fraternities, Magna Cum Laude Degree Basic and advanced reservoir engineering short courses, Texas A&M University
Industry sponsored short courses in well log evaluation, waterflooding, formation evaluation, pressure transient analysis, core analysis and reservoir simulation

Summary of Areas of Expertise

Over 40 years of diverse experience in evaluating oil and gas properties, more than 35 years with Ryder Scott. Served as group leader for over 20 years in Ryder Scott’s Houston Office, coordinating more than 50 major international projects composed of multidisciplinary team evaluation. Previously Executive Vice President, currently President and a member of the Board of Directors.

Economic Evaluations: Economic evaluation experience in various geographical areas world-wide. • Determination of oil, gas, condensate and plant product reserves (deterministic and probabilistic) including cost analysis studies and economic appraisal of properties

Reserve Certifications: Work with the SEC and SPE-PRMS reserve definitions on a daily basis and therefore developed a familiarity with the application of these definitions in the classification of reserves. Dealt with the reserve definitions set by other international exchange commissions. Interacted with the U.S. Securities and Exchange Commission on behalf of Ryder Scott clients and have advised clients on approaches to their reserves reporting.

Thermal Recovery Reserves Studies: Performed extensive thermal recovery reserves studies of heavy oil reservoirs in the San Joaquin Basin, California (South Belridge, Midway Sunset, Kern Front, Kern River, Coalinga, West Coalinga Fee, Arroyo Grande, Lost Hills) and other parts of the world, including the Duri Field (largest steamflood operation) in Indonesia. Areas of investigation included the analysis of cyclic steam injection, design of steam injection projects with recommendations of well spacing, type of injection pattern, expected steam requirements over the life of the projects, estimated reserves, and cost analysis. Conducted extensive surveillance on existing mature projects to evaluate potential for infill drilling, alternate injection schemes, and steam injection rate modifications. The Duri field project required the estimation of the remaining reserves and steam requirements for the developed and undeveloped segments of the field in order to assess the economic viability of constructing a pipeline from central to north Sumatra (U.S. $500,000M) for the purpose of providing fuel gas for steam generation.

Development Plans: Extensive experience onshore and offshore, preparing drilling schedules and development plans to achieve optimum economics while adhering to market demands and complying with equipment and logistical limitations.

Advisor: Assisted clients in the negotiation of gas supply and gas sales contract terms to insure proper commitment of resources from seller to buyer, fair negotiation of gas pricing formulas, and ability of seller to meet contractual supply of gas.

Other Areas of Proficiency

Underground Gas Storage: Performed detailed feasibility study of converting the Fulshear Field into a gas storage property. Performed volumetric study of gas storage capacity, wellbore and field deliverability calculations, wellbore utilization study, drilling requirements and cost requirements. Field was ultimately converted into a successful gas storage project. Assisted in the evaluation of the West Clearlake Field Gas Storage Project. This field is characterized by a strong waterdrive and was converted into a successful gas storage project.

Material Balance Studies: Extensive use of Ryder Scott’s proprietary software Matbal to solve problems related to material balance for both oil and gas reservoirs under simple and complicated drive mechanisms.

Waterflood Design: Waterflood design and surveillance in numerous types of geological formations. Significant experience evaluating and designing waterfloods in various formations including the Caddo Limestone, San Andres and Clearfork formations of North-Central and West Texas, Gulf Coast Frio formations, Los Angeles Basin and Offshore California, San Joaquin Basin Diatomite Formation, Neuquen and San Jorge Basins of Argentina, and Offshore Greece.

Gas Deliverability Studies: Performed detailed gas deliverability studies for pipeline feasibility studies. Major projects include: (1) Corridor Block Gas Project in Indonesia, a study to evaluate the feasibility of supplying gas for a long term contract from the Corridor Block in South Sumatra to the Duri Field in Central Sumatra; (2) Central Dock Sud Project in Argentina, a project to supply gas for a long term contract from the Neuquen and Austral Basins in Argentina to the Central Dock Sud Plant in the Buenos Aires area; and (3) Yashlar Block in Central Turkmenistan, and the Western Desert Gas Project in Egypt. Studies involved constructing deliverability models using Ryder Scott’s proprietary software, GASDEL and PROCAST, constructing development plans and depletion plans for fields and integrating them with contract demand schedules for gas, determining requirements for compression and pipeline specifications, etc. Have performed gas deliverability studies for numerous other individual well and field projects for highly permeable and tight gas formations.

Expert Witness Testimony: Served as expert witness giving expert technical testimony in arbitration cases and legal proceedings.

Infill Drilling Studies: Performed numerous studies evaluating the effects and economic feasibility of infill drilling in simple and complex geological environments. Studies conducted for oil fields under primary and secondary recovery, and for gas fields with a high degree of reservoir stratification.

Summary of Employment

Ryder Scott Co. LP     1981 to Present
Chairman and CEO
Joined Ryder Scott Company in 1981 as a reservoir engineer. Advanced to Vice President in 1993 and Managing Senior Vice President in 2002. Elected to the Board of Directors in 2007, Executive Vice President in 2015, and currently resides as Chairman and CEO (2023). During this time at Ryder Scott, prepared evaluations of oil and gas properties including the determination of recoverable reserves and the economic value of the reserves. Coordinated major domestic and international projects (see attachment for notable international projects). Current role as Chairman and CEO involves oversight of business and engineering aspects of company operations, staffing and personnel assignments.

Natomas North America     1980 to 1981
Reservoir Engineer
Responsibilities including log analysis, recommendation of completion procedures, reserve evaluations for SEC filings, basic geology, material balance studies, improved recovery, development plans, preparation of budget forecasts, formation evaluation, etc. Responsible for the Southeast Division of the company including the Texas Gulf Coast, Louisiana and the Offshore Gulf Coast.

Sun Production Co.     1976 to 1979
Production and Reservoir Engineer
Responsible for numerous aspects of production and reservoir engineering for various fields operated by Sun to insure optimum performance from wells and field equipment. Specific assignments included: compressor studies; gathering system and injection system design and evaluation; artificial lift studies in rod pumping, gas lift and submersible pump life; workover, recompletion, and plug and abandonment procedures; corrosion studies; material balance studies. Conducted reservoir engineering studies in pressure maintenance; pressure transient analysis; development plans; log analysis and correlation; reserve evaluations; stimulation procedures (acidizing and fracturing); economic analysis; waterflood design and surveillance; and unitization studies. Performed numerous wellbore evaluations and reservoir studies recommending workover procedures for recompletion, stimulation, and injection. Recommended and designed several secondary recovery projects and monitored existing projects for optimization of production. Recommended the drilling of several delineation and infill wells.

Geographical Areas of Experience

United States
Gulf of Mexico – Onshore and Offshore
Permian Basin
Central and East Texas Rocky Mountain Region
Mid-Continent Region
California – Onshore and Offshore

International
Angola (Offshore)
Argentina – (All Basins)
Abu Dhabi
Australia
Bolivia
Cameroon
China
Colombia
Congo and Democratic Republic of Congo
Ecuador
Egypt
Gabon
Germany
Ghana
Greece
Guatemala
Indonesia
Mexico
Nigeria
Peru
Qatar
Trinidad
Tunisia
Turkmenistan
United Kingdom
Venezuela
West Africa

Professional Associations

Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers (SPE)

Coordination of Major International Projects

Prinos Field – Offshore Greece
Purpose of this integrated study was to search for workover and drilling opportunities remaining from this mature multi-level waterflood in order to optimize its ultimate recovery and economic life. The field is a highly compartmentalized structure due to faulting. Performance evaluation was complicated by the complex geology multi-layers (approximately 18 different flow units), and intercommunication between some fault blocks. Analyzed tracer surveys, performance history, bottomhole pressure data, and well tests; integrated information with geological and geophysical (3D) data in order to evaluate future workovers, infill drilling, reserves and remaining economic life of the field.

Third Round Evaluation of Properties, Venezuela – 1997
Coordinated multi-disciplinary teams dedicated to the evaluation of various fields offered in the Venezuelan Third Round Offering. Teams consisted of Ryder Scott geoscientists, sub-contracted geoscientists of CAEX Exploration and Ryder Scott engineers. Work was performed for various clients. Studies required evaluation of 2D and 3D seismic data, review and re-mapping of numerous productive and potentially productive horizons, performance appraisals of historical data, construction of radial horizontal well model, construction of third round economic model, estimation of proved, probable, possible and potential (exploration) reserves, field development plans, production forecasts, and economic appraisals.

Bay of Campeche, Mexico – 1998
Integrated study of world class carbonate field located offshore, Mexico. Study was used as basis for evaluation of financing of > $U.S. 1.0 Billion dollar nitrogen injection plant. Study included geophysical evaluation of seismic data, geological interpretation, material balance and performance review of field using classical methods and numerical simulation model.

Pipeline Feasibility Study and Contract Advisor – Offshore Indonesia – 1998
Integrated study to determine economic feasibility of multi-billion dollar project to construct major pipeline to transport gas from numerous fields and three operators, from offshore Indonesia to Singapore. Study was prepared for consortium of end users and the major arranger, Sembgas. After estimating proved, probable and possible gas reserves, a detailed development plan and gas deliverability model for all fields and operators was constructed. Economic model of the project was prepared using estimated infrastructure and development costs. Also served as Gas Consultant Advisor to Sembgas and the end users in the negotiation of technical terms for the Gas Supply Agreement.

Acquisition Study of Operating Company, Offshore Peru – 1998
Evaluation of proved, probable, possible and exploration potential of several offshore fields in Peru owned by Petrotech. Objective of study was to advise client on appraised NPV of properties for Bid Presentation. Study involved several hundred wells and numerous platforms. Coordinated a team of geoscientists and engineers, as well as services of sub-contractor experts of facilities and platforms, Lowe Offshore.

Divestiture Project – Onshore Fields, Germany – 1999
Coordinated the evaluation of various onshore fields in Germany for divestiture purposes. Study was prepared for owner of properties. Properties were mature, high watercut fields having hundreds of producers and injectors. Using limited available data, Ryder Scott relied on statistical workover and drilling results and evaluation of historical performance to appraise non-producing reserves. Estimated proved, probable, and possible reserves, and made future production forecasts and economic projections. Advised client on data gathering and enhanced evaluation techniques in order to optimize value of properties.

Appraisal of Chaco Properties – Bolivia – 1999
Coordinated evaluation of Chaco’s oil and gas properties in Bolivia. Study included the review of existing geophysical, geological, and engineering data, and review of existing third party reports. A market analysis was performed in order to validate operators’ forecast of future market gas sales rates. Constructed economic model based on terms of Operating Agreement and evaluated NPV of properties based on Ryder Scott’s revised estimates of reserves and various potential gas market and pricing scenarios.

Appraisal of Major Gas Property – Neuquen Basin, Argentina – 1999
Evaluation of a major gas property and exploration acreage in the Neuquen Basin of Argentina. Study was prepared utilizing 3D seismic data, historical performance data, and various existing operator and third party reports. Study took advantage of substantial experience gained by Ryder Scott Company in most of the major offset fields in the area through prior studies also coordinated by Mr. Ramirez. In addition to extensive geophysical, petrophysical and geological analyses, Ryder Scott audited the results of a third party numerical model in order to derive its conclusions related to future expected field performance. Extensive material balance work was also performed. Study was performed for the purpose of assessing the NPV of the property for submittal of bid to purchase by client.

Evaluation of Cabimas Field, Maracaibo Basin, Venezuela – 1999
Coordination of multidisciplinary team in charge of appraisal of the Cabimas Field, Venezuela. Study included the appraisal of producing reserves for more than 400 wells. Assessment was made of the infill and delineation drilling potentials of the shallow Miocene formations, as well as the deeper Eocene sands. An extensive infill and delineation drilling program was recommended. The study was utilized by a major world financial institution for assessment of financing the development plan for one of the participants in the project. Economic evaluation was performed using the Venezuelan Third Round economic model.

Western Desert Gas Project – 2000
Lead engineer and coordinator of major gas reserves and deliverability study in the Western Desert, Egypt. Integrated team of geophysicists, geologists and engineers were used to conduct a detailed study of the volumetric gas reserves for seven multi-pay fields in the area. A gas deliverability model was constructed linking all fields and reservoirs to a gathering network and a production forecast for the total project was produced. Detail analysis of seismic data, petrophysical well log and core data, PVT data, RFT pressures, well test analysis, and gas deliverability were performed. A gas forecast to meet contract demands was generated which included timing for drilling undeveloped locations and recompleting wells. Recommendations for compression requirements and timing were included.

Determination of Fair Market Value of Exploration Resources – 2001
Coordinated a team of geophysicists, geologists and engineers in a study to assess the Fair Market Value of the exploration portfolio of two large independent companies. An extensive exploration portfolio was assessed with prospects in several offshore basins of Australia, Western Africa, Gulf of Mexico, U.K., Bolivia, and Trinidad. Exploration resources were determined probabilistically by prospect. Probabilistic models were constructed taking into consideration geologic risks, economic risks, political risks, marketing risks, and the fiscal terms of the variouspermits and contract areas. Ultimately a range of Fair Market Value for the combined portfolio of each company was assessed.

Audit of Reserves Committed to OCP Pipeline Project – Oriente Basin – Ecuador – 2001 Coordinated the review of reserves for six operating companies in the Oriente Basin, which committed oil reserves for the financing of the OCP Pipeline project in Ecuador. Conducted extensive review of the estimated proved, probable, and possible reserves and exploration resources for these companies using a team of geophysicists, geologists and engineers. Reviewed seismic data, geological data and interpretative work performed by the operators, historical performance data, numerical simulation models, etc. in order to verify or revise reserves according to our assessment. Prepared a report related to the overall results of the investigation as well as a general overview on the exploration potential of the Oriente Basin.

Advisor to Abu Dhabi National Oil Company – 2002 to 2003
Member of technical team evaluating bids presented to the Abu Dhabi National Oil Company (ADNOC) for the purchase of certain interests in the Upper Zakum field, worlds’ largest offshore oil field. Responsible for reviewing the technical capabilities of six of the world’s major companies selected as bidders for the project and for advising ADNOC of the expertise owned by these companies.

Appraisal of Heavy Oil Project in Orinoco Belt – Venezuela – 2004
Evaluated the reserves and reviewed the field development plan for one of the major syncrude projects in the Orinoco Belt. Lead project engineer in the integrated team

Evaluation of Several Major Fields in Colombia – 2002 to 2004
Performed reserve studies in numerous major and minor fields in Colombia, South America for Ecopetrol and other producing companies. Studies performed in the Upper, Middle, and Lower Magdalena Valley Basins, Llanos Basin, Guajira Basin and other areas.

Participated in Major Company Audit Team – Colombia and Venezuela – 2004
Member of reserve audit teams of two major companies reviewing and advising companies of appropriate reserves bookings in Colombia and Venezuela, South America. Properties reviewed were in the Lake Maracaibo area, Venezuela and Eastern Llanos area, Colombia.

Evaluation of Reserves for Pemex’s Northern Region – 2005 to 2014
Coordinated the certification of reserves for the Northern Region of Mexico with offices in Reynosa, Poza Rica, Tampico and Veracruz. The subject evaluation includes approximately 30,000 wells and more than 300 fields.

Evaluation of Reserves and Future Exploitation Plans for foreign company contract areas – Venezuela – 2006
Team leader for evaluation of various contract areas operated by foreign companies in Venezuela for conversion of contracts to Expresas Mixtas.

Evaluation of Various Offshore Blocks in Angola, West Africa – 2007 to 2012
Technical advisor and engineering manager of large project related to the estimation of gas reserves attributable to various offshore blocks in Angola.

Review of Reserve Reports Submitted to the National Agency of Hydrocarbons of Colombia
Project coordinator of study requiring the appraisal of approximately 70 reserve reports submitted to the National Agency of Hydrocarbons (ANH) by as many companies. Among the primary objectives of the study was the review of the methodologies and procedures for reserve estimations in the subject reports and opine as to the appropriate and correct use of such procedures in relation to compliance with SPE-PRMS reserves definitions.

Evaluation of Oil and Gas Reserves and Review of Operator Development Plans for Bolivia 2010-2011
Project coordinator for the evaluation of the oil and gas reserves for the country of Bolivia. The project included the evaluation of geologically complex naturally fractured fields in southern Bolivia. Subsequent study pertained to the review of the development plans of two of Bolivia’s mega-fields and presentation of alternate development plans to assist in increasing production and optimizing field recovery.

Evaluation of the Situche Central Field in Peru – 2013
Project encompassed the geological and engineering study of subject field, with emphasis on recoverable reserves and development plans. Conducted economic sensitivity analysis to investigate various types of contractual models for the offering of the property for bid in search of an operating partner. Evaluated sensitivities based on license agreements and PSC contracts.

Review of Development Plans proposed by Pemex for 164 fields in the Northern Region – 2014 – CNH
Project coordinator for the review of Pemex’s technical and execution capacity to execute the development plans proposed by said company for 164 fields considered in Round 0. Evaluation conducted on behalf of Commission Nacional de Hidrocarburos (CNH) of Mexico.

Photo of Raza Rizvi Senior Petroleum Engineer

Raza Rizvi , Senior Petroleum Engineer

Education
BS degree, petroleum engineering, Texas A&M, 1999 MS degree, computer science, Texas A&M, 2001

Summary of Employment
Ryder Scott Co. LP     2013 to Present Senior Petroleum Engineer Perform petroleum engineering analysis.  Work with various computer system issues using experience programming and database administration, particularly in SQL. Enterprise Product Partners     2008 to 2013 Senior Systems Analyst Designed, developed and implemented enterprise-level architecture.  …Read More

Education

BS degree, petroleum engineering, Texas A&M, 1999
MS degree, computer science, Texas A&M, 2001

Summary of Employment

Ryder Scott Co. LP     2013 to Present
Senior Petroleum Engineer
Perform petroleum engineering analysis.  Work with various computer system issues using experience programming and database administration, particularly in SQL.

Enterprise Product Partners     2008 to 2013
Senior Systems Analyst
Designed, developed and implemented enterprise-level architecture.  Developed services to handle messaging, user entitlements, data access and external interfaces.  Tracked and managed flow of petroleum products across wells, pipelines and other assets.  Created and troubleshot complex stored procedures and functions in multiple systems.

Harris County (Texas) Flood Department     2007 to 2008
Application Systems Consultant
Developed applications to track and process county construction and repair projects.  Developed applications for multiple systems.  Created and manipulated reports according to servers’ requirements.

American International Group (AIG-VALIC)     2005 to 2007
Software Consultant
Developed internet and intranet applications for investment and retirement management, viewing reports and application maintenance.  Implemented multiple systems to create stored procedures, functions and packages.  Designed architecture, performed testing and wrote documentation.

Value Options Inc.     2005
System Integration Engineer
Developed a database-driven medical portal that enables internal and external domain users to perform multiple functions using Crystal Reports application.  Led a team through the life cycle of a project.  Created wireless data-entry applications.

Verizon Comm. Inc.     2003 to 2005
Automated Testing and Application Developer
Developed code using multiple systems for a strategic project.  Debugged and remedied defects in multiple applications.  Performed testing and usability analysis of SSP applications.  Wrote and executed test conditions and test cases/scenarios.  Performed automated functional and load testing for web services.

Schlumberger Information Solutions     2002
Petroleum Engineer
Developed Production Engineering software systems to improve engineering logic, accuracy and usability of processed-based client feedback.  Tracked code development and control application versioning.  Responded to client enhancements and bug requests and provided estimates and completion schedules.

Professional Associations

Member, Society of Petroleum Engineers

Photo of Eric A. Sepolio Vice President

Eric A. Sepolio , Vice President

Key Attributes and Proficiencies
  • Reserves and Economic Evaluations

Education
BS degree, petroleum engineering (minor in geology) Texas A&M University, 2007

Summary of Areas of Expertise
Over 10 years of diverse experience in classical reservoir engineering and petroleum reserves evaluation.

Reserves Evaluation and Certifications: Experience includes conducting reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) definitions.…Read More

Key Attributes and Proficiencies

  • Reserves and Economic Evaluations

Education

BS degree, petroleum engineering (minor in geology) Texas A&M University, 2007

Summary of Areas of Expertise

Over 10 years of diverse experience in classical reservoir engineering and petroleum reserves evaluation.

Reserves Evaluation and Certifications: Experience includes conducting reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) definitions. Expert in the evaluation of reserves and future income under a variety of fiscal terms and model contracts.

Acquisition and Divestiture Work: Experienced with reservoir evaluation studies for use in both acquisitions and divestitures of oil and gas properties for various Ryder Scott’s clients. Conducted multiple evaluations and due diligence studies for investment groups, private equity firms, pension funds, etc while adhering to data room procedures to deliver meaningful results on extremely tight deadlines.

Economic Evaluations: Economic evaluation experience in various geographical areas. Experience includes the preparation of sales packages for divestiture and fair market value (FMV) evaluations using the Society of Petroleum Evaluation Engineers (SPEE) and Ryder Scott Internal guidelines.

Summary of Employment

Ryder Scott Co. LP     2008 to Present
Vice President – Engineering
Evaluate petroleum reserves, field performance and economics applying various engineering techniques – emphasis on reserves estimation in accordance with Securities and Exchange Commission and Society of Petroleum Engineers reserves estimation guidelines. Projects include detailed full-field analysis, infill drilling studies, annual SEC filings, property sales and acquisitions and project feasibility studies. Economic studies range from traditional domestic evaluations to complex production sharing agreements.

Professional Associations

Licensed Professional Engineer (PE) in the State of Texas
Member, Society of Petroleum Engineers (SPE)

Photo of Timothy W. Smith, P.E. Managing Senior Vice President – Group Leader

Timothy W. Smith, P.E. , Managing Senior Vice President – Group Leader

Education
BS degree, petroleum engineering, West Virginia University, 1977 MBA degree, University of Phoenix, 1991

Summary of Employment
Ryder Scott Co. LP     2008 to Present Managing Senior Vice President - Group Leader Evaluates and forecasts reserves for international and domestic clients with emphasis on reserve projections in accordance with U.S.…Read More

Education

BS degree, petroleum engineering, West Virginia University, 1977
MBA degree, University of Phoenix, 1991

Summary of Employment

Ryder Scott Co. LP     2008 to Present
Managing Senior Vice President – Group Leader
Evaluates and forecasts reserves for international and domestic clients with emphasis on reserve projections in accordance with U.S. Securities and Exchange Commission and SPE-PRMS guidelines.  Recent experience includes projects in the Permian Basin, South Texas, Mexico, China, South America, Canada, the North Sea and Africa.  Has experience in most basins in U.S. Decline curve analysis, volumetrics, and material balance methods are utilized. Utilizes various evaluation software including Aries, PHDWin, CONTINUUM and Value Navigator. Has also conducted evaluations and audits of unconventional resources including shale oil and coal bed methane.

Business Owner     2004 to 2008
Petroleum Engineering, Land Consulting, and Insurance Sales
Conducted waterflood, recompletion, decline curve analysis, log evaluations, reserve and economic projections.  Leased prospective acreage and settled landowner surface issues for a coal bed methane company. Sold various types of insurance.

EFP & BASF     1992 to 2003
President (EFP) 2001-2003
$25 Million Plastics company (EFP) – achieved profitable results each year

Group Vice President Coatings (BASF) 1995-2000
Completed business turnaround from losses to a strong operating profit.

Site Manager (BASF) 1992-1995
Resin Plant – built new $60 million plant and started up successfully.

BASF – Wintershall Energy     1982 to 1991
Vice President of Operations
Managed successful $20 million development drilling budget, and lowered operating cost by 25 percent.  Managed 2000+ producing properties over most U.S. basins including the San Juan, Gulf Coast onshore and offshore, Permian, Anadarko, Powder River, Paradox and Black Warrior.  Operated an interstate pipeline supplying 200 industrial and commercial customers.

Manager of Engineering & Acquisitions
Completed two $70+ million acquisitions, conducted numerous acquisitions evaluations, and established in-house annual reserve analysis system utilizing OGRE.

Division Reservoir Engineer
Increased waterflood production by three-fold and evaluated wells for stimulation using pressure buildup tests.  Completed hundreds of prospect economic evaluations.

Cities Service Oil Co.     1977 to 1982
Senior Staff Engineer/Project Engineer
Conducted international project evaluations, helped design and install 3 offshore platforms on $100 million project in the Philippines and started up production of 40,000 bopd field.  Coordinated team to conduct reservoir modeling relating to potential water coning on a new discovery.

Production Engineer
Drilled and completed over 30 gas wells in Appalachian area, successfully fraced and acidized multiple wells, conducted reservoir modeling for infill drilling study, recompleted and deepened wells to help increase area production.

Professional Associations

Registered Professional Engineer in the State of Texas
Member, Society of Petroleum Engineers
Member, Society of Petroleum Evaluation Engineers

Photo of Andres Suarez, P.E. Vice President

Andres Suarez, P.E. , Vice President

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Water Flooding
  • Field Development Plans
  • Chemical EOR
Education
BS degree, Petroleum Engineering, Universidad de América, Bogotá - Colombia, 1992 MS degree, Petroleum Engineering, Texas A&M University, 2008 Minor, International Petroleum Management, Business School, Texas A&M University, 2008

Summary of Areas of Expertise
Reservoir and Production Engineering: Reserves and Resource Evaluation, classification and reporting.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Water Flooding
  • Field Development Plans
  • Chemical EOR

Education

BS degree, Petroleum Engineering, Universidad de América, Bogotá – Colombia, 1992
MS degree, Petroleum Engineering, Texas A&M University, 2008
Minor, International Petroleum Management, Business School, Texas A&M University, 2008

Summary of Areas of Expertise

Reservoir and Production Engineering: Reserves and Resource Evaluation, classification and reporting. Integrated reservoir studies, ability to work as a member of a multidisciplinary asset team or to work independently. Use of traditional reservoir engineering principles, including performance analysis, volumetric analysis, well-test analysis, material-balance calculations, PVT analysis, and other reservoir engineering applications. Effectively combine geological and engineering principles to achieve a solution to reservoir problems. Hands-on experience in well completion, well stimulation, field production operations, and well testing.

Summary of Employment

Ryder Scott Co. LP     2015 to Present
Vice President
Evaluate petroleum reserves, field performance, and economics by applying various reservoir engineering techniques. Emphasis on reserves estimation in accordance with U.S. Securities and Exchange Commission (SEC) rules and the Society of Petroleum Engineers Petroleum Resources Management System (SPE-PRMS). Projects include reserves assessment process, field performance detailed, volumetric analyses, full field analyses for annual regulatory filings, and property sales and acquisitions. Also, conduct project feasibility studies, field development plans, and chemical-enhanced oil recovery evaluations.

Hocol SA     1996 to 2015
Technical Manager
Performed project and reservoir management, field development planning, and reserves evaluations. Corporate coordinator for the reserves/resources process audit with external auditors. Managed resources-to-reserves process maturation technically and economically. Filed corporate reserves with U.S. SEC for four years. Defined strategies for field/prospect assessment and technology deployment for IOR/EOR. Responsible for a Chemical EOR (ASP) field implemented pilot project. Involved in prefeasibility of heavy oil upgrading, screening of heavy oil technologies and decision to implement steam-assisted gravity drainage as the EOR method of choice. Identified upside potential to enhance company’s portfolio. Responsible for integrated reservoir studies. Involved in integrated formation-damage studies and rock mechanics, water-injection optimization and field operations, well tests in black-oil and gas-condensate reservoirs, artificial lift optimization, and stimulation design and operations.

Halliburton Latin America     1992 to 1996
Field Engineer – Completion, Cementing, and Stimulation
Implemented well completions and wireline operations, well cementing, and well stimulation in Colombia and Venezuela.

Geographical Areas of Experience

Africa and the Middle East
Abu Dhabi
Bahrain
D.R. of Congo
Egypt
Kuwait
Pakistan
Oman

Oceania
Australia

North America
Alaska
Gulf of Mexico
Texas

Central and South America
Colombia
Ecuador
México
Trinidad and Tobago
Venezuela

Central and Southeast Asia
China
Thailand
Turkmenistan

Europe and the Former Soviet Union
Italy
Kazakhstan
United Kingdom

Professional Associations

Licensed Professional Engineer in the State of Texas
Society of Petroleum Engineers

Publications

Suarez, A.F., Soto, D., Borja, H.D., Daudin, R.Y.: “Massive Optimization Technique Improves Production of Mature Fields: San Francisco, Colombia”, Colombia SPE 138979, 2010 SPE Latin American and Caribbean Petroleum Engineering Conference, 1-3 December 2010.

Suarez, A.F., Gaviria, W., Pavas, J, Frorup, M.D.: “Beating the Marginal Well Performance in a Mature Field: Sand Francisco Field in Colombia”, Colombia SPE 94987-MS, 205 SPE Latin American and Caribbean Petroleum Engineering Conference, 20-23 June 2005.

 

Photo of Yao Tian, Ph.D. Senior Engineer

Yao Tian, Ph.D. , Senior Engineer

Key Attributes and Proficiencies
  • Advanced software skills: Techlog, Geolog, GeoGraphix, Petrel, CMG, Eclipse, @Risk, Matlab
  • Experience and strong communications skills working with petrophysicists, geologists, and reservoir engineers
  • Strong data analysis and integration skills: ability to integrate geology with production in reservoir description
  • Familiarity with reserves estimations by decline curve analysis and reservoir simulation
Education
PhD, Petroleum Engineering, Texas A&M University, May 2014 MS, Petroleum Engineering, Texas A&M University, May 2010 BS, Petroleum Engineering, China University of Geosciences Beijing, August 2007

Technical Training
Schlumberger Techlog Formation Evaluation Techlog Python CMG Modeling Workflows Geolog fundamental Geolog Facimage and Determine

Summary of Employment
Ryder Scott Co.…Read More

Key Attributes and Proficiencies

  • Advanced software skills: Techlog, Geolog, GeoGraphix, Petrel, CMG, Eclipse, @Risk, Matlab
  • Experience and strong communications skills working with petrophysicists, geologists, and reservoir engineers
  • Strong data analysis and integration skills: ability to integrate geology with production in reservoir description
  • Familiarity with reserves estimations by decline curve analysis and reservoir simulation

Education

PhD, Petroleum Engineering, Texas A&M University, May 2014
MS, Petroleum Engineering, Texas A&M University, May 2010
BS, Petroleum Engineering, China University of Geosciences Beijing, August 2007

Technical Training

Schlumberger Techlog Formation Evaluation
Techlog Python
CMG Modeling Workflows
Geolog fundamental
Geolog Facimage and Determine

Summary of Employment

Ryder Scott Co. LP     2020 to Present
Senior Engineer
Responsible for reservoir engineering and modeling studies including integrated geoscience/engineering studies throughout the world.

University of Houston     2016 to 2018
Postdoctoral Fellow
Analyzed the stratigraphy of Bakken Shale and adjacent formations by performing well log correlations. Conducted petrophysical analysis on Middle Bakken Shale and Upper Three Forks Formation and obtained mineral composition, porosity, and water saturation for approximately 200 wells. Selected the key controls on the regional production of Bakken Shale including geological and completion data. Conducted production optimization using machine learning with approximately 2100 wells. Developed and taught the PETR 6397, Unconventional Resource Engineering class with other faculty members. Lectured on petroleum system, depositional environment, and resource characterization of coalbed methane, tight gas, shale gas, tight oil, and heavy oil reservoirs. Investigated key petrophysical properties, petrophysical workflows, and challenges of resource characterization in calculating the clay content, porosity, fluids saturation, TOC, and estimating permeability. Co-author of the manuscript of textbook, Unconventional Resources Engineering.

Marathon Oil Corporation     2014 to 2015
Petrophysicist, North America Onshore Exploration
Conducted petrophysical analyses of conventional and unconventional plays. Investigated application of Schlumberger ThruBit logs to optimize Eagle Ford completion by integrating mechanical and geological properties with production log data. Analyzed the anisotropy of Austin Chalk and Eagle Ford Shale with dipole sonic logs. Selected completion targets by identifying facies with greatest overall and effective completion efficiency. Calculated reservoir properties and hydrocarbon volume of Woodford and Caney Shales and Sycamore Ls. Conducted regional evaluation of Mowry Shale, Wyoming, to identify new prospective areas. Identified and evaluated the source rock of the Marchand Sandstone, Oklahoma. Determined petrophysical properties of the Austin Chalk in South Texas, and Medrano Sandstone, Oklahoma.

Summary of Internships

Marathon Oil Corporation   May 2013 to August 2013
Petrophysicist Intern, Gulf of Mexico Exploration
Analyzed the impact of geological parameters on Eagle Ford stimulation effectiveness. Identified possible relations between rock properties and screen-out potential using lateral logs.
Ran linear regression with production logs from 7 wells to identify key controls on stage production. Proposed a new algorithm to assess the overall quality of reservoir properties using lateral logs. Utilized the multiple-variable model to predict stage production with lateral logs.

ConocoPhillips   May 2012 to August 2012
Petrophysicist Intern
Evaluated the validity of the backscatter density logging tool, including magnitude, repeatability, and variability. Converted CT-Scan images of maximum resolution to bulk density for Eagle Ford Shale and Buda Limestone. Integrated core and density data to investigate stratigraphic units and improved the net-to-gross ratio calculation.

Schlumberger DCS   June 2009 to August 2009
Reservoir Engineer Intern
Built Eagle Ford single-well reservoir model in gas condensate region and performed history match. Tested key parameters influencing Eagle Ford gas condensate well performance, using sensitivity analysis.

Summary of Research

PhD Dissertation, Texas A&M University
Occurrence of Multiple Fluid Phases across a Basin – Eagle Ford Shale Example
Investigated the Eagle Ford Shale structure and stratigraphy, and mapped regional variations of Eagle Ford reservoir and mechanical properties by well logs correlation and petrophysical evaluation. Developed an algorithm to investigate the cyclicity of Lower Eagle Ford Shale and estimated reservoir properties, including TOC, total porosity, and frequency of interbed changes. Ran spatial statistics model to identify the correlation between production and geological parameters and determined the relative significance by comparing P value and linear regression coefficient. Built representative single-well reservoir simulation models for black oil, volatile oil, gas condensate, and dry gas fluid regions. Ran history match of simulation models to understand the uncertainties of key geological and reservoir controls on Eagle Ford Shale production.

Master Thesis, Texas A&M University
An investigation of Barnett Shale Reservoir Properties, and Resulting Variability of Hydrocarbon Composition and Well Performance
Analyzed Barnett Shale stratigraphy and sedimentary facies by performing basin-wide well log correlations. Investigated regional variations of Barnett Shale reservoir properties; petrophysical evaluation of TOC and porosity. Assessed regional variability of Barnett Shale production and fluid types.

Publications

Tian, Y., Ayers, W.B., Sang, H., McCain, W.D. and Ehlig-Economides, C. 2018. Quantitative Evaluation of Key Geological Controls on Regional Eagle Ford Shale Production Using Spatial Statistics. SPE Reservoir Evaluation and Engineering: 21 (02). SPE- 185025-PA.

Luo, G., Tian, Y., Bychina, M., and Ehlig-Economides, C. 2018. Production Optimization Using Machine Learning in Bakken Shale. Paper URTEC 2902505-MS presented at the Unconventional Resources Technology Conference, 23-25 July, Houston, Texas, USA.

Tian, Y., Ayers, W.B., McCain, W.D., Ehlig-Economides, C. 2016. Quantitative Evaluation of Key Controls on Eagle Ford Shale Production Using History Match and Sensitivity Analysis. Presented at the SPE Liquids-Rich Basins Conference-North America, Midland, TX, 22-23 Sept. SPE-181175.

Tian, Y., Ayers, W.B., and McCain, W.D. 2014. Regional Impacts of Lithologic Cyclicity and Reservoir and Fluid Properties on Eagle Ford Shale Well Performance. Presented at the SPE Unconventional Resources Conference, The Woodlands, TX, 1-4 April. SPE-169007.

Tian, Y., Ayers, W.B., and McCain, W.D. 2013. The Eagle Ford Shale Play, South Texas: Regional Variations in Fluid Types, Hydrocarbon Production and Reservoir Properties. Presented at the 6th International Petroleum Technology Conference, 26-28 March, Beijing, China. IPTC-16808-MS.

Gong, X., Tian, Y., McVay, D.A., Ayers, W.B., and Lee, W.J. 2013. Assessment of Eagle Ford Shale Oil and Gas Resources. Presented at the SPE Unconventional Resources Conference, Calgary, Canada, 5-7 November. SPE-167241.

Tian, Y, Ayers, W.B., and McCain, W.D. 2012. Regional analysis of stratigraphy, reservoir characteristics, and fluid phases in the Eagle Ford Shale. Gulf Coast Association of Geological Societies and the Gulf Coast Section of SEPM, 21-24 October, Austin, Texas.

Tian, Y and Ayers, W.B. 2010. Barnett Shale (Mississippian), Fort Worth Basin, Texas: Regional Variations in Gas and Oil Production and Reservoir Properties. Presented at the SPE Unconventional Resources Conference Calgary, Canada, 19-21 October. Paper SPE-137766.

Tian, Y. and Ayers, W.B. 2009. Regional Stratigraphic and Sedimentary Analyses, Barnett Shale, Fort Worth Basin, Texas.
Proceedings, Coalbed and Shale Gas Symposium, Tuscaloosa, Alabama, 18-22 May. Paper 0919.

Photo of William J. Turner III Senior Project Engineer

William J. Turner III , Senior Project Engineer

Key Attributes and Proficiencies
  • Field development
  • Production modelling
  • Economic Modeling
  • Commercial valuation
  • Cost and Schedule Estimation
  • Subsea design
  • Energy Transition
Education
BS degree, ocean engineering, Texas A&M University, 2007 MS degree, technology commercialization, The University of Texas at Austin, 2017

Summary of Areas of Expertise
Project engineer and manager with 15 years of diverse experience beginning with a decade of engineering and project management in deepwater EPCI, subsea, and pipeline design.…Read More

Key Attributes and Proficiencies

  • Field development
  • Production modelling
  • Economic Modeling
  • Commercial valuation
  • Cost and Schedule Estimation
  • Subsea design
  • Energy Transition

Education

BS degree, ocean engineering, Texas A&M University, 2007
MS degree, technology commercialization, The University of Texas at Austin, 2017

Summary of Areas of Expertise

Project engineer and manager with 15 years of diverse experience beginning with a decade of engineering and project management in deepwater EPCI, subsea, and pipeline design. Thereafter, performed oil and gas production and economic modelling, development scenarios and commercial analysis of offshore fields. A recent focus on various aspects of energy transition such as carbon capture, greenhouse gas emissions verification and validation, and supply chain analysis for application to offshore renewables. Other areas of expertise include product management in energy research and commercial analytics.

Economic Evaluations: Commercial and economic evaluation for oil and gas assets in various geographical areas. Monitors various elements of the energy supply chain including supply, demand, costs and financial strength of suppliers. High understanding of cost and risk analysis for offshore and onshore development projects, delivering reliable budgets and schedules. Acted as senior analyst and product manager in top tier energy analytics firms.

Project Development: Extensive knowledge in deepwater technology, operations, cost estimation techniques and project management. Acted as a project engineer for offshore projects performing engineering design, analysis, cost and schedule estimation. Managed major projects for subsea equipment and pipeline installation for upstream and midstream operators. Extremely skilled with subsea design and acted as a project engineer while learning more and umbilical manufacturing aspects for the Aker Subsea in Alabama.

Other Areas of Proficiency

Field Operations: Highly qualified in operations with projects under budget and on time. Led engineering deliverables and field operations for fabrication, load out, transportation, and installation of rigid jumpers, subsea foundations, and structures located in the Noble and Tamar Field Developments in Israel. Led engineering analysis and field operations for jumper fabrication, transportation, and installation in the Gulf of Mexico.

Summary of Employment

Ryder Scott Co. LP     2022 to Present
Senior Petroleum Engineer
Due diligence and evaluation of field development plans, production performance, project economics, commercial asset valuation and greenhouse gas emissions calculations, integrating various engineering and commercial aspects.

Rystad Energy     2021 to 2022
Lead Analyst, North America Energy Services
Monitored various elements of the energy supply chain including supply, demand, costs, and financial strength of suppliers across all sectors from seismic to decommissioning. Reviewed the energy transition to renewable sources like offshore wind and solar. Projects also included corporate portfolio benchmarking.

Welligence Energy Analytics     2019 to 2020
Vice President, US Gulf of Mexico
Led the expansion of Welligence into the US Gulf of Mexico and launched a product in a mere eight months for use in evaluating assets for portfolio benchmarking, merger and acquisitions, and new field developments. Built the upstream sector’s most sophisticated and user-friendly commercial analysis platform that included asset production profiles, costs, and markets for the Gulf of Mexico fields, backed by the most comprehensive and robust data set and powered by state-of-the-art machine learning models. Consulting work included midstream asset valuation and forecasting.

Wood Mackenzie     2017 to 2019
Senior Research Analyst, Upstream Gulf of Mexico
Started from bottom-up well-level analysis and field research, rolled that up to field level commercial analysis reports, then developed a macro view of the region and the broader sector. Brought a unique value to the team through my deep knowledge of deepwater technology, operations, cost estimation techniques, and project management – but also the ability to see the bigger picture and how the sector was affected by outside elements like US onshore and the energy transition. Used strong writing skills for authoring custom reports based on deep-dive analysis or industry events such as M&A transactions, always with a goal of bringing a unique value add for the readers. Made multiple presentations to clients and industry events on higher-level views. Consulting work included due diligence for a deepwater midstream asset transaction.

EMAS AMC     2007 to 2017
Deputy Project Manager
Managed major projects for subsea and pipelines for upstream and midstream operators. Managed financial and operational delivery of engineering, procurement, construction, and installation (EPCI) of rigid jumpers. Joined the project midway through and led recovery efforts to get engineering deliverables, vessel readiness, mobilization, and offshore operations back on track for umbilical, jumpers, flying leads, and subsea structures. Recovered and executed on schedule to the satisfaction of the company and client. Managed full scope and budget for engineering deliverables and offshore operations for multiple fabrication and installation campaigns. Acted as a project engineer for offshore projects performing engineering design, analysis, cost, and schedule estimation.

Geographical Areas of Experience

Africa and Middle East
Angola
Ghana
Republic of Congo
South Africa
Israel
Saudi Arabia

Central and Southeast Asia
India
Indonesia 

Europe and Former Soviet Union
Italy
Norway
Spain

North America
California
Gulf of Mexico
Louisiana
Texas
Mexico

Central and South America
Argentina
Barbados
Brazil
Colombia
Ecuador
Guyana
Trinidad and Tobago
Venezuela

Publications

Turner III, William J., “Floating Production Systems: What’s Next?” OTC-30715-MS, Offshore Technology Conference, 4 May 2020.

Presentations

“M&A Drivers in the Gulf of Mexico”, Offshore Energy Law Conference, 22 May 2019.

“Are we getting ‘Bang for the Buck’ from Subsea Interventions?”, Subsea Well Intervention Symposium, 9 August 2018.

 

 

Photo of Marsha Wellmann, P.E. Senior Vice President

Marsha Wellmann, P.E. , Senior Vice President

Education
BS degree, petroleum engineering, University of Texas at Austin

Summary of Employment
Ryder Scott Co. LP     2012 to Present Senior Vice President Evaluate petroleum reserves. field performance and economics applying various engineering techniques.  Emphasis on reserves estimation in accordance with Securities and Exchange Commission (US SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves estimation guidelines. …Read More

Education

BS degree, petroleum engineering, University of Texas at Austin

Summary of Employment

Ryder Scott Co. LP     2012 to Present
Senior Vice President
Evaluate petroleum reserves. field performance and economics applying various engineering techniques.  Emphasis on reserves estimation in accordance with Securities and Exchange Commission (US SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves estimation guidelines.  Projects include performing detailed full-field analysis, annual regulatory SEC filings, property sales and acquisitions and project feasibility studies.

WildHorse Resources LLC     2010 to 2012
Senior Reservoir Engineer
Forecast production volumes and perform reserves/economic analyses using U.S. SEC standards and for borrowing- base redeterminations.  Developed procedures in accordance with SEC standards for reserves reporting.  Worked with independent reserves and accounting auditors.  Identified candidates for workovers or recompletions.  Analyzed economics of proposed new wells, recompletions and workovers.  Evaluated property acquisition packages.

Osborn Heirs Co.     2004 to 2010
Reservoir Engineer
Implemented petroleum economics evaluation program for 375 properties.  Generated and maintained production and reserves database.  Appraised drilling, recompletion and workover projects.  Prepared production, capital- and operating-expense forecasts for annual budgets.  Prepared year-end and quarterly reserves reports for management, bank lenders and the U.S. EIA, Dept. of Energy.  Appraised potential acquisition packages and other investment opportunities.

Texas Railroad Commission     2002 to 2004
Engineering Specialist, Environmental Services – Underground Injection Control
Evaluated injection and disposal-well permit applications.  Analyzed proposed workovers, completions and well construction.  Determined possible contamination from abandoned wells through engineering analysis.  Made recommendations and approvals for well permits; specified restrictions.

Professional Associations

Registered Professional Engineer in the State of Texas

Member, Society of Petroleum Engineers

Photo of Keith Lehi Woodrome, P.E. Vice President

Keith Lehi Woodrome, P.E. , Vice President

Key Attributes and Proficiencies
  • Reserves Evaluations (SEC-Compliant and SPE-PRMS)
  • Probabilistic Analysis
  • Unconventional Analysis
  • Shelf & Deepwater Gulf of Mexico
  • Oil and Gas Price Modeling
Education
BS degree, chemical engineering, Texas A&M University, 2001

Summary of Areas of Expertise
Twenty years of industry experience with 14 years in reservoir engineering, reserve determinations, reservoir studies, and economic evaluations. …Read More

Key Attributes and Proficiencies

  • Reserves Evaluations (SEC-Compliant and SPE-PRMS)
  • Probabilistic Analysis
  • Unconventional Analysis
  • Shelf & Deepwater Gulf of Mexico
  • Oil and Gas Price Modeling

Education

BS degree, chemical engineering, Texas A&M University, 2001

Summary of Areas of Expertise

Twenty years of industry experience with 14 years in reservoir engineering, reserve determinations, reservoir studies, and economic evaluations.  Extensive experience in conducting reserves evaluations under both the U.S. Securities and Exchange Commission (SEC) rules and Society of Petroleum Engineers Petroleum Resources Management System (SPE-PRMS) guidelines.  Work with a variety of widely used economic programs such as ARIES, PEEP, PHDWin, OGRE and ValNav.

Summary of Employment

Ryder Scott Co. LP     2007 to Present
Vice President
Perform evaluations of reserves, field performance and economics (developing future net income) using deterministic and probabilistic methods. Emphasis to ensure reserves estimations are in accordance with Securities and Exchange Commission (US SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves guidelines. Projects include performing detailed full field analyses, project feasibility studies, performing in-depth evaluation of fields for periodic SEC filings and bank reports, and supporting clients with borrowing base determinations, bankruptcies, and property acquisitions and divestitures. Perform evaluation of reserves using probabilistic methods – studies involve integration of independent geologic and engineering variable distributions to arrive at a combined probabilistic project outcome distribution.

ExxonMobil Development Co.     2001 to 2007
Project Cost Engineer / Project Controls Engineer
Project Controls Lead and Lead Estimator, Golden Pass Pipeline Project, Onshore Texas
Provide oversight and direction to ExxonMobil and Amec-Paragon project control teams. Present reports to executive management for activities across regulatory, engineering, construction, procurement and right-of-ways. Rollout monthly cost forecasts to assist in decisions on budgeting, labor and execution. Collect and analyze market intelligence to predict onsite construction costs for materials and labor.

Project Controls Lead and Lead Estimator, Qatar Gas-to-Liquids Project, Qatar
Coordinated costs surveys to Ras Laffan, Qatar, and Dubai, UAE, and gathered market intelligence from Middle East to create accurate estimates. Created pre-FEED offshore project cost estimates and managed all subsequent changes to the scope. Developed pre-FEED budget to monitor and forecast engineering costs and potential changes to the scope during project execution.

Project Cost Engineer / Project Controls Engineer
Extensive travels to Japan, S. Korea, Malaysia, Indonesia, Azerbaijan, Qatar and UAE in support of cost surveys for gathering intelligence to support field development concepts. Project controls lead auditor providing corporate level guidance to international projects. Participated in various bid reviews to qualify and check bid cost estimates submitted by contractors and ensured that those contractors understood scope of required work. Developed and trained in the use of onshore/offshore pipeline estimate tools used internationally across all projects.
Monitored and forecasted weekly cost activities during project execution (engineering, procurement and construction)
Developed general tools for project use, i.e., S-curves, cost and progress tables, labor loads, etc.

Geographical Areas of Experience

Africa and Middle East
Angola (offshore)
Nigeria

North America
California
Gulf of Mexico (Shelf and Deepwater)
Louisiana
Mississippi
New Mexico
Oklahoma
Texas

Central and Southeast Asia
China (offshore)

Professional Associations

Licensed Professional Engineer in the State of Texas
Society of Petroleum Engineers

Photo of Jeremy Xia Senior Engineer

Jeremy Xia , Senior Engineer

Education
BS degree, chemical and biomolecular engineering, Nanyang Technological University, 2012 MS degree, petroleum engineering, Texas A&M University, 2014

Summary of Areas of Expertise
Experience in reservoir management, field development planning and petroleum economics. Working knowledge of production forecasting and economics. Proficient with programs that generate production profiles and net present values.…Read More

Education

BS degree, chemical and biomolecular engineering, Nanyang Technological University, 2012
MS degree, petroleum engineering, Texas A&M University, 2014

Summary of Areas of Expertise

Experience in reservoir management, field development planning and petroleum economics. Working knowledge of production forecasting and economics. Proficient with programs that generate production profiles and net present values. Knowledge of reserves evaluations, SPE-PRMS guidelines and U.S. SEC disclosure rules for reserves and their classifications.

Summary of Employment

Ryder Scott Co. LP    2018 to Present
Senior Engineer
Evaluate petroleum reserves, field performance and economics applying various reservoir engineering techniques. Emphasis on reserves estimations in accordance with U.S. SEC and SPE-PRMS guidelines.

Quantum Reservoir Impact (QRI) LLC     2015 to 2018
Associate Analyst, Reservoir Engineer
Using production and static pressure data, conducted material-balance calculations to determine OOIP. Calculated economics based on modeling for prices, expenses, taxes and royalties. Identified and analyzed field development opportunities. Performed sensitivity analysis for new opportunities. On a multidisciplinary team, conducted risk analysis. Created and maintained economics models. Generated decline and type curves and economic forecasts.

Geographical Areas of Experience

United States
Permian Basin
Niobrara DJ Basin

International
Offshore China

Professional Associations

Member, Society of Petroleum Engineers

Photo of Raymond S. Yee, P.E. Senior Vice President – Group Coordinator

Raymond S. Yee, P.E. , Senior Vice President – Group Coordinator

Education
BA degree, mathematical science, Rice University, 1975 MS degree, petroleum engineering, University of Houston, 1981

Summary of Areas of Expertise
Diverse experience with both traditional and modern reservoir engineering analysis methods. Integrated Reservoir Studies:  Extensive experience in providing both reservoir engineering and reservoir modeling expertise as a member in multiple integrated geoscience/engineering teams. …Read More

Education

BA degree, mathematical science, Rice University, 1975
MS degree, petroleum engineering, University of Houston, 1981

Summary of Areas of Expertise

Diverse experience with both traditional and modern reservoir engineering analysis methods.

Integrated Reservoir Studies:  Extensive experience in providing both reservoir engineering and reservoir modeling expertise as a member in multiple integrated geoscience/engineering teams.  Subject studies involved the characterization and evaluation of multipay, deepwater Gulf of Mexico reservoirs for field exploitation/planning.  Developed full-field stochastic reservoir simulation models that captured the heterogeneous and compartmentalized nature of the prospective sands.  Models subsequently utilized as tool for flow assurance, field monitoring and surveillance.

Reservoir Simulation: Conducted numerous reservoir simulation studies of oil and gas fields throughout the world. Involved with all facets of simulation from initial model design/ conceptualization, model construction, history matching, and prediction to final project documentation. Simulation model types include full-field, sector, and single well studies. Example simulation studies include development of primary and secondary recovery models for field evaluation/development, gas storage field models for monitoring/leak detection/ quantification of losses, gas field models for deliverability estimation, and hazardous waste plume models for environmental regulation compliance.

Reservoir Engineering: Extensive experience in application of traditional engineering techniques such as decline curve analysis, material balance, volumetric analysis, PVT/rock properties analysis, nodal analysis, and well test evaluation.

Reserves and Economic Evaluations: Reserves/economic evaluation experience in various geographical areas using both deterministic and probabilistic methods.  Experience includes prospect screening, oil/gas reserves appraisal for corporate sales/acquisition, fair market value determination for reserves involved with litigation, and construction of customized software models for evaluation of foreign production-sharing contract economics.

Summary of Employment

Ryder Scott Co. LP     2004 to Present
Senior Vice President – Group Coordinator
Responsible for reservoir engineering and modeling studies including integrated geoscience/engineering studies throughout the world.  Example of recent studies are: pressure buildup analysis from a dual porosity reservoir in Yemen; parameter sensitivity study for a prospective deepwater Gulf of Mexico field.

Knowledge Reservoir    2001 to 2004
Responsible for reservoir engineering and modeling portion of integrated geoscience/engineering studies for several Gulf of Mexico fields.  Subject studies included oil, retrograde, and dry gas reservoirs located in the Central GOM region.

Independent Petroleum Consultant    1981 to 2000
Engineering screening studies, reserve evaluation, fair market value determination, reservoir simulation.

Hubbell Consulting    1978 to 1980
Performed oil and gas property evaluations and reservoir simulation studies.

Scientific Software-Intercomp    1974 to 1977
Reservoir engineering and engineering economics.  Reservoir simulation.

Professional Associations

Registered Professional Engineer in the State of Texas
Registered Professional Engineer in Louisiana
Member, Society of Petroleum Engineers
Society of Petrophysicists and Well Log Analysts
Houston Geological Society
American Association of Petroleum Geologists

Photo of HE Zhang, P.E. Senior Vice President

HE Zhang, P.E. , Senior Vice President

Education
BS degree, computer application, University of Science and Technology of China, 2002 BS degree, polymer chemistry, University of Science and Technology of China, 2003 MS degree, computational chemistry, University of New Orleans, 2006 PhD degree, petroleum engineering, Texas A&M University, 2010

Summary of Areas of Expertise
Knowledge of reserve evaluation, petroleum economics, reservoir and production simulation/integration, flow assurance, PVT characterization, and software development. …Read More

Education

BS degree, computer application, University of Science and Technology of China, 2002
BS degree, polymer chemistry, University of Science and Technology of China, 2003
MS degree, computational chemistry, University of New Orleans, 2006
PhD degree, petroleum engineering, Texas A&M University, 2010

Summary of Areas of Expertise

Knowledge of reserve evaluation, petroleum economics, reservoir and production simulation/integration, flow assurance, PVT characterization, and software development.  Expertise in shale and coalbed methane evaluation.

Summary of Employment

Ryder Scott Co. LP     2012 to Present
Senior Vice President, Business Development Asia
Evaluate petroleum reserves, field performance and economics applying various engineering techniques.  Emphasis on reserves estimation in accordance with Securities and Exchange Commission (US SEC) and Society of Petroleum Engineers (SPE-PRMS) reserves estimation guidelines.  Projects include performing detailed full-field analysis, annual regulatory SEC filings, property sales and acquisitions and project feasibility studies.  Past working area includes North America, East and Southeast Asia, North Africa, Middle East, Caribbean, and Latin America for both conventional and conventional fields.

Schlumberger Houston Technology Center     2007 to 2012
Engineer
Handled flow assurance, PVT characterization, artificial lift, network model development and configurations, etc.

Professional Associations

Registered Professional Engineer in the State of Texas
Certified Petroleum Engineer, Society of Petroleum Engineers
Nominated Full Member, Sigma Xi, The Scientific Research Society
Technical Committee, SPE Asia Pacific Oil & Gas Conference Exhibition 2015 to present
Sub-committee, SPE Annual Technical Conference & Exhibition 2012 to present
Associate Editor, Journal of Natural Gas Science and Engineering, Elsevier 2010 to present

Languages

Fluent in English and Native Chinese.

Publications

Peer-reviewed Journal

Zhang, H., Cocco, M., Rietz, D., Cagle, A., and Lee, W. J. 2015. An Empirical Exponential Decline Curve for Shale Reservoirs. Journal of SPE Economics & Management. Submitted.

Han, G., Zhang, H., and Ling, K. 2015. The Optimization Approach of Casing Gas Assisted Rod Pumping System. Journal of Natural Gas Science & Engineering, Elsevier. Submitted.

Han, G., Zhang, H., and Ling, K. 2015. Smart De-Watering and Production System through Real-Time Water Level Surveillance for Coal-Bed Methane Wells. Journal of Natural Gas Science & Engineering, Elsevier. Submitted.

Haghshenas, A., Zhang, H., and Wood, D.A. 2015. Smart drilling and completion to optimize gas and gas liquids production. (Invited paper) Journal of Natural Gas Science & Engineering, Elsevier. Accepted.

Zhang, H., Ling, K., and Han, G. 2015. Modified Analytical Equations of Recovery Factor for Radial Flow Systems. 2015. Journal of Petroleum Science & Engineering, Elsevier, V(137): pp. 250-257, December 2015.

Han, G., Zhang, H., Ling, K., Wu, D., and Zhang, Z. 2015. Study on Undulating Well in Anisotropic Reservoir by Semi-Analytical Method. Special Topics & Reviews in Porous Media –An International Journal, Begell House. V(6)1: pp.29-39, July 2015. DOI: 10.1615/SpecialTopicsRevPorousMedia.v6.i1.30

Zhang, H., Banerjeer, R., and Wood, D.A. 2015. Enhanced Gas Recovery Technologies can Improve Profitability and Drive Sustainability in Volatile Natural Gas Markets. (Invited paper) Journal of Natural Gas Science & Engineering, Elsevier, V(18): pp.1-4, March 2015.

Ling, K., Zhang, H., Shen, Z., Ghalambor, A., Han, G., He, J., and Pei, P. 2015. A New Approach To Estimate Invasion Radius of Water-Based-Drilling-Fluid Filtrate To Evaluate Formation Damage Caused by Overbalanced Drilling. Journal of SPE Drilling & Completion. V(30)1: pp.27-37, March 2015.

Han, G., Zhang, H., and Ling, K. 2014. A Transient Two-phase Fluid and Heat Flow Model for Gas-lift Assisted Waxy Crude Wells with Periodical Electric Heating. Journal of SPE Canadian Petroleum Technology. V(53)5: pp304-314, September, 2014.

Ling, K., Wu, X., Zhang, H., and He, J. 2014. Improved Gas Resource Calculation Using Modified Material Balance for Overpressure Gas Reservoirs. Journal of Natural Gas Science & Engineering, Elsevier, V(17): pp.71-81, March 2014.

Han, G., Wu, X., Zhang, H., and Tian, S. 2014. A Semi-Analytical Models to Investigate Performance of Herringbone Wells. Tech Science Press, V(10)1: pp.37-48, 2013.
Han, G., Ling, K., Khor, S., Zhang, H., and Thakur, R. 2013. Simulation of Multiphase Fluid-Hammer Effects during Well Start-Up and Shut-In. SPE Journal of Oil and Gas Facilities. V(2)6: pp.68-77, September 2013.

Ling, K., He, J., Pei, P., Han, G., and Zhang, H. 2013. Determining the Permeability of Tight Rock with Gas Transient Flow. Journal of Natural Gas Science & Engineering, Elsevier, V(15): pp.1-7, November 2013.

Ling, K.G., Guo, B.Y., and Zhang, H. 2012. Numerical Simulation of Transient Flow for Gas Pipeline and Tank. SPE Journal of Oil and Gas Facilities. V(1) 6: pp. 46-56. December, 2012.

Zhang, H., Falcone, G., and Teodoriu, C. 2010. Modeling fully transient two-phase flow in the near-wellbore region during liquid loading in gas wells. Journal of Natural Gas Science & Engineering, V(2): 2-3, July 2010, pp. 122-131.

Yang, Q.Z., Wu, L.Z., Zhang, H., Wu, Z.X. and Tung, C.H. 2004. A Luminescent Chemosensor with Specific Response for Mg2+, Inorganic Chemistry, V(43): pp. 5195-5197.

Peer-reviewed Abstract for SPE Conference Paper

Zhang, H., Cocco, M., Rietz, D., Cagle, A., and Lee, W. J. 2015. An Empirical Exponential Decline Curve for Shale Reservoirs. SPE paper 175016 presented at the SPE Annual Conference & Exhibition, Houston, TX, 28-30 September 2015.

Han, G., Ling, K., and Zhang, H. 2015. Real-Time Monitoring and Diagnosis of Electrical Submersible Pump in Offshore Production. SPE paper 174873 presented at the SPE Annual Conference & Exhibition, Houston, TX, 28-30 September 2015.

Han, G., Ling, K., and Zhang, H. 2015. Smart De-Watering and Production System through Real-Time Water Level Surveillance for Coal-Bed Methane Wells. SPE paper 173408 presented at the 2015 SPE Digital Energy Conference and Exhibition, Woodlands, TX, USA, 3 – 5 March, 2015.

Zhang, H., Khor, S., Li, J. 2014. Integrated Management Strategy of Flow Assurance in Digital Field. SPE paper 170968 presented at the SPE Annual Conference & Exhibition, Amsterdam, Netherlands, 27-29 October 2014.

Waltrich, P., Zhang, H., Teodoriu, C. 2014. Remote Real-time Experimental Diagnostics for Well Challenges. SPE paper 170953 presented at the SPE Annual Conference & Exhibition, Amsterdam, Netherlands, 27-29 October 2014.

Ling, K., Zhang, H., Shen, Z., Ghalambor, A., Han, G., He, J., and Pei, P. 2014. A Comprehensive Approach to Estimate Invasion Radius of Mud Filtrate to Evaluate Formation Damage Caused by Overbalanced Drilling. SPE paper 168184 presented at the SPE International Symposium and Exhibition on Formation Damage Control in Lafayette, Louisiana, USA, 26–28 February 2014.

Han, G., Wu, X., Zhang, H., Zhang, X., and Ling, K. 2014. The Optimization Approach of Casing Gas Assisted Rod Pumping System. IPTC Paper 17331 presented at International Petroleum Technology Conference in Doha, Qatar, Jan. 20-22, 2014.

Han, G., Zhang, H., Ling, K., and Zhang, S. Study on Undulating Well in Anisotropic Reservoir by Semi-Analytical Method. SPE paper 137319 presented at 2013 SPE Kuwait Oil and Gas Show and Conference held in Mishref, Kuwait, 7-10 October 2013.

Han, G., Wu, X., Zhang, H., and Tian, S. A Semi-Analytical Model to Investigate Performance of Herringbone Wells. Presented at 2013 International Conference on Computational & Experimental Engineering and Sciences, Seattle, WA, US, scheduled 24-28, May 2013.

Han, G., Zhang, H., and Ling, K. 2013. A Transient Two-phase Fluid and Heat Flow Model for Gas-lift Assisted Waxy Crude Wells with Periodical Electric Heating. SPE paper 165415 presented at 2013 SPE Heavy Oil Conference Canada at Calgary, Alberta, Canada, scheduled 11-13 June 2013.

Zhang, H., Ling, K., and Acuna, H. 2013. New Analytical Equations of Recovery Factor for Radial Flow System. SPE paper 164766 presented at 2013 SPE North Africa Technical Conference and Exhibition at Cairo, Egypt, scheduled April 15-17, 2013.

Ling, K., Wu, X., Zhang, H., and He, J. 2013. More Accurate Method to Estimate the Original Gas in Place and Recoverable Gas in Overpressure Gas Reservoir . SPE paper 164502 presented at 2013 SPE Production & Operations Symposium at Oklahoma City, March 23-26, 2013.

Ling, K., Wu, X., Zhang, H., and He, J. 2013. Tactics and Pitfalls in Production Decline Curve Analysis. SPE paper 164503 presented at 2013 SPE Production & Operations Symposium at Oklahoma City, March 23-26, 2013.

Han, G., Ling, K., Khor, S., Zhang, H., and Thakur, R. 2012. Simulation of Multiphase Fluid-Hammer Effects During Well Shut-In and Opening. SPE Paper 160049 presented at SPE Asia Pacific Oil & Gas Conference and Exhibition, 22 – 24 October 2012 in Perth, Australia.

Ling, K., Zhang, H., Han, G., and Shen, Z. 2012. A New Approach to Calculate Pressure Drop for Three-Phase Flow in Pipe. SPE 151537 presented at SPE International Production and Operation Conference and Exhibition 14-16 May 2012 in Doha Qatar.

Ling, K., Han, G., Shen, Z., and Zhang, H. 2012. Optimization of Horizontal Well Design to Maximize Recoverable Hydrocarbon. SPE 151531 presented at SPE International Production and Operation Conference and Exhibition 14-16 May 2012 in Doha Qatar.

Zhang, H., Li, J, Wang, W., Watters, C., and Houeto, F. 2012. Simulating progressive cavity pump for single branch and surface network models. SPE paper 152841 presented at SPE LACPEC 2012 at Mexico City, Mexico.

Zhang, H., Han, G., Houeto, F., and Lessard, R. 2012. New methods to predict inflow performance of multiple fractured horizontal wells under two-phase condition and optimize number of fracture stages. SPE paper 152837 presented at SPE NATC 2012 in Cairo, Egypt.

Li, J., Wang, W., Zhang, H., and Houeto, F. 2012. A Grid-Free Method to Enhance Reservoir-Well Coupling. SPE paper 152840 presented at SPE NATC 2012 in Cairo, Egypt.

Zhang, H., Falcone, G., and Teodoriu, C. 2010 Relative Permeability Hysteresis Effects in the Near-Wellbore Region during Liquid Loading in Gas Wells. SPE paper 139062 presented at SPE LACPEC 2010 in Lima, Peru.

Zhang, H., Falcone, G., Valko, P. and Teodoriu, C. 2009. Numerical Modeling of Fully-Transient Flow in the Near-Wellbore Region During Liquid Loading in Gas Wells. SPE paper 122785 presented at SPE LACPEC 2009 in Cartagena de Indias, Colombia.

Technical Presentations and Lectures

Graduate Seminar Invited Speaker: “New Analytical Equations of Recovery Factor for Radial Flow System,” March 26, 2013, Department of Petroleum Engineering, University of Oklahoma.

Keynote Speker at The 2nd International Congress of Oilfield Chemicals in Dalian, China on “Advances in Flow Assurance Simulation,” February 9, 2012.

Lecture, Special Topic: “Modern modeling techniques in liquid loading problem,” China University of Petroleum, Beijing, July 10, 2011.

SPE Student Paper Contest Winner (3rd place): “Liquid Loading in Gas Wells: Modeling of Transient Multiphase Flow in the Near-Wellbore Region,” April 15, 2009, SPE Rocky Mountain Petroleum Technology Conference, Denver, CO.

SPE Student Paper Contest Winner (3rd place): “Modeling of Fully-Transient Multiphase Flow in the Near-Wellbore Region of the Reservoir,” February 2, 2008, Texas A&M, PhD Level.

Speaker at SPE and Ryder Scott conferences with more than 20 presentations.

Lecturer for various technical training on the subjects of reserve evaluation for shale, coalbed methane and conventionals, reservoir simulation, and petroleum economics.

Photo of Zheng Zhang, Ph.D. Petroleum Engineer – Simulation

Zheng Zhang, Ph.D. , Petroleum Engineer – Simulation

Key Attributes and Proficiencies
  • Strong background in reservoir simulation, history matching, and optimization
  • Extensive experience in reservoir management, field development planning, EOR techniques (CO2 flood, chemical flood). Working knowledge of reserves estimation and economics. Knowledge of SPE-PRMS guidelines and U.S. SEC disclosure rules for reserves and their classifications
  • Excellent communication, analytical and coordination skills
  • Programming and software experience: ECLIPSE, CMG, Petrel, UT-CHEM, studioSL, MEPO, Spotfire, OFM, Ecrin, C++, Matlab
Education
BS degree, petroleum engineering, China University of Petroleum, Beijing, 2007 MS degree, petroleum engineering, China University of Petroleum, Beijing, 2009 Ph.D., petroleum engineering, Texas A&M University, 2014
Summary of Areas of Expertise
Over 14 years of diverse experience in classical reservoir engineering with an emphasis on reservoir simulation modeling.…Read More

Key Attributes and Proficiencies

  • Strong background in reservoir simulation, history matching, and optimization
  • Extensive experience in reservoir management, field development planning, EOR techniques (CO2 flood, chemical flood). Working knowledge of reserves estimation and economics. Knowledge of SPE-PRMS guidelines and U.S. SEC disclosure rules for reserves and their classifications
  • Excellent communication, analytical and coordination skills
  • Programming and software experience: ECLIPSE, CMG, Petrel, UT-CHEM, studioSL, MEPO, Spotfire, OFM, Ecrin, C++, Matlab

Education

BS degree, petroleum engineering, China University of Petroleum, Beijing, 2007
MS degree, petroleum engineering, China University of Petroleum, Beijing, 2009
Ph.D., petroleum engineering, Texas A&M University, 2014

Summary of Areas of Expertise

Over 14 years of diverse experience in classical reservoir engineering with an emphasis on reservoir simulation modeling.

Reserves Evaluation and Certifications: Experience includes conducting reserves evaluations under the strict Securities and Exchange Commission (SEC) guidelines and the Society of Petroleum Engineers (SPE) and World Petroleum Congress (WPC) definitions. Expert in the evaluation of reserves and future income under a variety of fiscal terms and model contracts.

Economic Evaluations: Economic evaluation experience in various geographical areas. Experience includes the preparation of sales packages for acquisition, divestiture and fair market value (FMV) evaluations using the Society of Petroleum Evaluation Engineers (SPEE) and Ryder Scott Internal guidelines.

Reservoir Simulation Studies: Experience in using software to characterize hydrocarbon fluids with equations-of-state (EOS). Experience in characterizing black oils, retrograde condensates, light oils, and critical reservoir fluids. Experience in full field dynamic modeling and optimization for field development planning and management.

Summary of Employment

Ryder Scott Co. LP     2022 to Present
Petroleum Engineer – Simulation
Evaluate petroleum reserves, field performance and economics applying various engineering techniques – emphasis on reserves estimation in accordance with U.S Securities and Exchange Commission and Society of Petroleum Engineers Petroleum Resources Management System. Projects include constructing and reviewing reservoir simulation models, performing detailed full-field analysis, estimating reserves for annual regulatory filings, conducting technical due diligence for property sales and acquisitions and undertaking project feasibility studies.

Quantum Reservoir Impact (QRI)     2017 to 2018
Individual Consultant, Houston, TX

  • Applied principles of reservoir engineering including field performance analysis, well test analysis, decline curve analysis, material balance, production forecast and economic evaluation for 5 PEMEX fields in Gulf of Mexico
  • Evaluated development and appraisal strategies and proposed improvement opportunities with other disciplines such as geophysics, geology, production, completion and drilling
  • Worked with clients to deliver project results and reports on schedule and presented infill and workover recommendations in client workshop

ConocoPhillips     2014 to 2015
Senior Reservoir Engineer – Reservoir Engineering Technology, Houston, TX

  • Project lead responsible to coordinate among business unit, lab, third party contractors, and JIP meetings
  • Evaluated the performance of reservoir management strategies in four Permian fields
  • Developed efficient workflow and tool to monitor and evaluate reservoir performance for East Vacuum Grayburg San Andres Unit, Permian, to quickly prioritize workover
  • Optimized CO2 WAG scheduling, which dynamically considers pattern maturity, production & injection efficiency, and operation constraints
  • Identified candidate wells with conformance issues and proposed solutions based on reservoir and wellbore understanding in Permian fields

Texas A&M University     2009 to 2014
Graduate Research Assistant – Department of Petroleum Engineering, College Station, TX

  • Dissertation: History Matching and Optimization Using Stochastic Methods: Applications to Chemical Flooding (Advisor: Dr. Akhil Datta-Gupta)
  • Identified the hierarchical structure among objective functions and dominating parameters for each objective function in ASP flooding by sensitivity analysis
  • Proposed and developed a multi-stage history-matching workflow that can stochastically calibrate various scales of ASP flooding properties using a genetic algorithm
  • Optimized conflicting objectives (oil production and chemical efficiency in chemical flooding) using a Pareto-based optimization approach and Non-dominated Sorting Genetic Algorithm

Total E&P USA     May 2013 to August 2013
Reservoir Engineer Intern – Subsurface Development Department, Houston, TX

  • Natural Fracture Identification and Reservoir Modeling in Utica Shale, Ohio
  • Identified natural fractures based on rock mechanical properties, FMI, flowback data analysis, among others.
  • Built a simulation model for a multi-stage fractured horizontal well in a naturally fractured shale reservoir
  • History matched the model using genetic algorithm and forecast EUR with uncertainty analysis

BHP Billiton Petroleum     May 2013 to August 2013
Reservoir Engineer Intern – Central Engineering Department, Houston, TX

  • Uncertainty Analysis and Assisted History Matching Workflows in Unconventional Shale Oil Reservoirs
  • Identified key parameters and studied well/reservoir behavior of one horizontal well in Eagle Ford
  • Proposed two workflows of model calibration using genetic algorithm under multiple geological scenarios
  • Forecast EUR under two workflows and compared with EUR from decline curve analysis

Total E&P China     Oct. 2008 – Dec. 2008
Reservoir Engineer Intern – Geosciences, Beijing, China

  • Conducted reservoir and well performance analysis for the Sulige gas field

Geographical Areas of Experience

North America
Gulf of Mexico
New Mexico – East Vacuum (Permian)
Ohio – Utica Shale
Texas – Eagle Ford (Permian)

Publications and Presentations

Zheng Zhang, Hye Young Jung, Akhil Datta-Gupta, Mojdeh Delshad. History Matching and Optimal Design of Chemically Enhanced Oil Recovery Using Multi-Objective Optimization, SPE 193860-MS presented at SPE Reservoir Simulation Conference, Apr. 10-11, 2019

Zheng Zhang. Application of Assisted History Matching Workflows in Eagle Ford. Invited talk at Annual Reservoir Forum – SPE Gulf Coast Section, May 8, 2014

Zheng Zhang. History Matching and Optimization of ASP Flooding. MCERI Annual JIP Meeting Nov. 2013

Zheng Zhang and Reza Fassihi. Uncertainty Analysis and Assisted History Matching Workflow in Shale Oil Reservoirs, SPE 16895-MS presented at Unconventional Resources Technology Conference in Denver, CO, Aug. 12-14, 2013

Zheng Zhang. Optimization Software GLOBAL Training, MCERI Annual JIP Meeting, Nov. 4, 2011

Zheng Zhang, Linsong Cheng. 2010. Divisional Model of Fractured Vertical Well in Stress Sensitive Reservoir, Unconventional Oil & Gas Reservoirs, 2010(05)

Geology/Geophysics

Photo of Melanie Adelman Geologist

Melanie Adelman , Geologist

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Reservoir Modeling
  • Petroleum Geology
  • Data Science
Education
BA degree, earth sciences, University of Houston, 2012 MS degree, geology, University of Houston, 2019

Summary of Areas of Expertise
Performs volumetric evaluations of reserves through geological, geophysical and petrophysical methods under supervision of a senior geologist.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Reservoir Modeling
  • Petroleum Geology
  • Data Science

Education

BA degree, earth sciences, University of Houston, 2012
MS degree, geology, University of Houston, 2019

Summary of Areas of Expertise

Performs volumetric evaluations of reserves through geological, geophysical and petrophysical methods under supervision of a senior geologist. Experienced in projects involving petroleum geology, reservoir modeling, and data science. Participates in integrated studies involving multidisciplinary team approach to analysis of seismic, geological, engineering, and economics data.

Reservoir Simulation: Validated results and tested proof of concept through simulation of gamma ray data in a 3-D reservoir model. Generated true, partial, and pseudo earth models using DecisionSpace Geoscience Software.

Integrated Reservoir Studies: Integrated geostatistical reservoir modeling and machine learning techniques to solve two fundamental problems often confronted in earth modeling: missing values and sparse data. Classical statistics, machine learning, and geostatistical techniques were implemented on the data to reduce the uncertainty attributed to these problems.

Summary of Employment

Ryder Scott Co. LP     2020 to Present
Geologist
Work closely with petroleum engineers to quantify reservoir volumes and understand reservoir deliverability. Develop the foundations for reserves evaluations, certifications and audits. Integrate geological, geophysical, and petrophysical interpretations with engineering analyses. Use technical standards of the Society of Petroleum Engineers, American Association of Petroleum Geologists and World Petroleum Council.

Halliburton Landmark     2018 to 2018
Research and Development Intern
Developed a method to predict gamma ray data in real time using machine learning algorithms to generate pseudo gamma ray logs. Used a variety of machine learning algorithms to predict gamma ray data using drilling data. Extensively researched regional and local geology and depositional environments in order to obtain abstract vision of complex geometries.

Gardline Surveys, Inc.     2013 to 2015, 2017
Geophysical Interpreter
Mapped 3D seismic data horizons using Kingdom software. Produced detailed 3D seismic data regional text compiling a complete analysis of geological environment. Generated comprehensive reports of the offshore study area being interpreted for shallow hazards. Generated figures portraying stratigraphy and lithology in the immediate proximity to proposed well locations.

Geographical Areas of Experience

Europe and Former Soviet Union
North Sea
Buzzard Field

North America
Texas
Midland Basin

Professional Associations

International Association for Mathematical Geosciences
Houston Geological Society

Photo of Rebecca Carson, P.G. Vice President

Rebecca Carson, P.G. , Vice President

Education
BS degree, geology, Texas Tech University, 1980

Summary of Areas of Expertise
Petroleum geologist with more than 30 years of experience in oil and gas field development, exploration, prospect screening, property acquisitions and reserves studies.
Summary of Employment

Ryder Scott Co. LP     1997 to Present Vice President Evaluate proved, probable and possible reserves of properties in the United States and internationally using integrated petrophysical and geological methods. …Read More

Education

BS degree, geology, Texas Tech University, 1980

Summary of Areas of Expertise

Petroleum geologist with more than 30 years of experience in oil and gas field development, exploration, prospect screening, property acquisitions and reserves studies.

Summary of Employment

Ryder Scott Co. LP     1997 to Present
Vice President
Evaluate proved, probable and possible reserves of properties in the United States and internationally using integrated petrophysical and geological methods.  Prepare and review sales packages of producing properties for buyers and sellers.  Perform volumetric analysis in integrated projects.

Netherland, Sewell & Associates Inc.     1996 to 1997
Contract Geologist
Evaluated proved producing and non-producing reservoirs for various fields in Mexico.

Tenneco Ventures Corp.     1991 to 1996
Staff Geologist
Evaluated approximately 100 drilling prospects per year, participated in 15 to 20 percent.  Average drilling success over four years was 44 percent.  Increased reserves by 85 Bcf.  Developed more than 25 Miocene oil and gas fields, resulting in eight drilled wells for reserve additions of 30 Bcf.  Used team approach to develop a field study of south Louisiana salt dome field.  Integrated 3D seismic maps with subsurface, production and pressure data.  Identified several drilling prospects and recompletion opportunities based on field study.  Evaluated an average of 15 producing properties per year.

Tenneco Energy     1985 to 1991
Senior Geologist
Used geologic interpretation, formation evaluation and reservoir engineering methods to calculate oil and gas reserves in U.S. gulf coast fields for possible attachment to pipeline system.  Performed field studies in new gas supply areas, such as the Arkoma Basin (2.2 Tcf), Wyoming Overthrust (5.7 Bcf) and Mackenzie Delta of Canada (10.5 Tcf).  Prepared regulatory filings for major pipeline projects and presented technical data to the Federal Energy Regulatory Commission (FERC).

Cavalla Energy Exploration Co.     1984 to 1985
Geological Technician
Mapped regional geology, calculated prospect reserves, generated output in PC-based economics program, organized and assembled prospect brochures and evaluated leases for farm-in and farm-out opportunities.

Kriti Exploration Inc.     1983 to 1984
Exploration Geologist
Explored for new reserves in the Delaware and Tatum basins of New Mexico by generating subsurface maps, production maps and structural and stratigraphic cross-sections.

Gulf Oil Corp.     1981 to 1983
Development Geologist
Produced detailed structural and isopach maps for U.S. gulf coast fields.  Maps were used to propose new well locations and workovers/recompletions of existing wells to maximize production and deliverability.  Supervised logging operations at wellsite for approximately 25 wells and selected zones of completion.

Professional Associations

Member, American Association of Petroleum Geologists Registered Professional Geoscientist, State of Texas

Photo of Inty Cerezo Vice President

Inty Cerezo , Vice President

Education
BS degree with a focus in petroleum, geological engineering, Universidad de Oriente de Venezuela, 2001

Summary of Areas of Expertise
More than 17 years of technical, operational and managerial experience in the oil and gas industry, with emphasis in geology, geomodeling, geophysics, drilling operations. Proficient in geological and geophysical technologies and tools.…Read More

Education

BS degree with a focus in petroleum, geological engineering, Universidad de Oriente de Venezuela, 2001

Summary of Areas of Expertise

More than 17 years of technical, operational and managerial experience in the oil and gas industry, with emphasis in geology, geomodeling, geophysics, drilling operations. Proficient in geological and geophysical technologies and tools.

Summary of Employment

Ryder Scott Co. LP     2018 to Present
Vice President
Performs static reserves analysis and quantifies reservoir volumes using technical standards of SPE, AAPG and WPC. Develops the foundation for reserves evaluations, certifications and audits. Integrates petrophysical and seismic interpretations with engineering analyses. Generates structural and geostatistical models.

Petrocuarx     2016 to 2018
Founder and President
Tasked with critical business decisions, such as project investments. Performed reservoir characterization and economic analysis on U.S. infield drilling projects. Managed geological and geophysical applications at Cantium. Managed the contracts, invoicing and tools to aid in the workflow of the data analytics team, implemented by Petrocuarx at Cantium.

Schlumberger     2005 to 2015
SWT Product Analyst – Houston, TX, 2013 to 2015
Expert in company’s geology and modeling software platform. Instrumental in the implementation of a new quantitative interpretation and seismic well-tie technology in Petrel. Provided technical support to clients by designing and creating innovative workflows. Subject matter expert for synthetic seismogram generation and wavelets analysis.

SIS G&G Team Lead – Rio de Janeiro, Brazil, 2012 to 2013
Performed project data management (PDM). Mentored junior team members in the techniques, tools, processes and practices within geology and geophysics. Conducted planning, scheduling and designing of projects and assigned work to team members. Efficiently managed team through planning and coordination. Provided technical support to clients.

Senior GeoModeler – Houston, TX, 2009 to 2012
Analyzed workflows in seismic interpretation and geo-modeling. Optimized and implemented new procedures and processes for information management and trained and supported field engineers and a data management team.

Senior Geoscientist & Workflow Consultant – Trinidad & Tobago, 2005 to 2009
Provided workflow consultancy services to several companies. Generated static models, performed uncertainty analyses, and seismic interpretations. Provided technical support and training to clients

Invercon – Caicara del Orinoco, Venezuela     2004
Topography Engineer
Responsible for planning, supervising, calculating and mapping of topographical data, conformed to a National Geodesic Network for official land registration.

Capen Constructora – Puerto la Cruz, Venezuela     2003
Mines Engineer
Calculated and mapped acquired topographical data conformed to the National Geodesic Network.

PDVSA – Anaco, Venezuela     2001 to 2003
Operations Geologist
Geological and Geophysical advisor in drilling operations as well as mudlogging and directional drilling. Provided petrophysical analysis, volumetric calculations and reserves updates.

PDVSA-INTEVEP – Caracas, Venezuela     2000 to 2001
Petrophysicist
Analyzed and interpreted geological data obtained through magnetic resonance to determine moment of asphaltene flocculation. Performed mathematical analysis of curves to obtain flocculation moment. Measured magnetic resonance properties of different types of crude oil, including heavy oils, at different temperatures.

Languages

Fluent in English, Spanish and Portuguese.

Photo of Gabriel Gallegos Geologist

Gabriel Gallegos , Geologist

Key Attributes and Proficiencies
  • Well Log Analysis/Interpretation/Correlation
  • Reserves Evaluations
  • Sequence Stratigraphy
Education
BS degree, Geological Sciences, The University of Texas at Austin, 2013 MS degree, Geological Sciences, Rutgers University, 2017

Summary of Areas of Expertise
Performs volumetric evaluations of reserves through geological, geophysical, and petrophysical methods under supervision of a senior geologist.…Read More

Key Attributes and Proficiencies

  • Well Log Analysis/Interpretation/Correlation
  • Reserves Evaluations
  • Sequence Stratigraphy

Education

BS degree, Geological Sciences, The University of Texas at Austin, 2013
MS degree, Geological Sciences, Rutgers University, 2017

Summary of Areas of Expertise

Performs volumetric evaluations of reserves through geological, geophysical, and petrophysical methods under supervision of a senior geologist. Experienced in projects involving well log analysis and interpretation/correlation, stratigraphic interpretation, geological mapping, and data integration. Participates in integrated studies involving a multidisciplinary team approach to analyzing geological and engineering data.

Integrated Reservoir Studies: Optimization of field development through the integration of various earth science tools and disciplines. Integrating and synthesizing geologic data to generate isochore maps incorporated with petrophysical data.

Reserve Certifications: Work with the SEC and SPE-PRMS reserve definitions on a daily basis and developed a familiarity with the application of these definitions in the classification of reserves.

Other Areas of Proficiency

Field Operations: Oilfield operations experience in the Permian Basin, Eagle Ford, and Austin Chalk conducting multi-stage hydraulic fracturing jobs.

Summary of Employment

Ryder Scott Co. LP     2020 to Present
Geologist
Work closely with petroleum geologists and engineers to quantify reservoir volumes and understand reservoir deliverability. Develop the foundations for reserves evaluations, certifications and audits. Integrate geological, geophysical, and petrophysical interpretations with engineering analyses. Apply reserves standards set by market regulators in the United States, Canada, the United Kingdom, and China. Use technical standards of the Society of Petroleum Engineers, American Association of Petroleum Geologists and World Petroleum Council.

Halliburton     2018 to 2019
Production Enhancement Field Engineer
Executed over 700 stages of hydraulic fracturing operations on horizontal wells within a collaborative and multidisciplinary team of engineers and operators during unconventional field development. Performed on-site monitoring, analysis, and interpretation of data acquired during well-site operations to maximize job efficiency, minimize operational downtime, and provide technical expertise to customers in a professional manner. Compiled, reviewed, and analyzed data to create post-job reports in a fast-paced environment.

Cabot Oil & Gas     5/2013 to 8/2013
Exploration Geoscientist Intern
Conducted a subsurface evaluation of the lower Barnett Shale and surrounding units by correlating over 360 key wells throughout the northern section of the Hardeman Basin. Integrated and synthesized geologic interpretations to generate isopach maps incorporated with petrophysical data to define reservoir characteristics and identify sweet spots. Determined reservoir and source rock quality of Cabot’s assets in the lower Barnett Shale had more economic potential than competitors’ acreage.

Geographical Areas of Experience

Africa
Nigeria
Niger Delta Basin

Central and Southeast Asia
China
Bohai Bay
South China Sea

North America
Alaska
Cook Inlet
Mexico
Chicontepec Basin
Texas
Austin Chalk
Barnett Shale
Eagle Ford
Hardeman Basin
Permian Basin

Professional Associations

American Association of Petroleum Geologists

Photo of Brett A. Gray, P.G. Senior Vice President – Project Coordinator

Brett A. Gray, P.G. , Senior Vice President – Project Coordinator

Key Attributes and Proficiencies
  • Reserves/Resource Evaluations
    • SEC, SPE/SPEE, CPR (Hong Kong and London Exchanges)
  • Petrophysical Evaluation
  • Geophysical Evaluation
  • Reservoir Modeling for Dynamic Simulation
  • Thermal, CO2, and Water flood EOR Methods
  • Training
Education
BS degree, geology, Texas A&M University, 2007

Summary of Areas of Expertise
Reserve and Resource Evaluations: Performs volumetric evaluations of reserves and resources through geological, geophysical and petrophysical Methods.…Read More

Key Attributes and Proficiencies

  • Reserves/Resource Evaluations
    • SEC, SPE/SPEE, CPR (Hong Kong and London Exchanges)
  • Petrophysical Evaluation
  • Geophysical Evaluation
  • Reservoir Modeling for Dynamic Simulation
  • Thermal, CO2, and Water flood EOR Methods
  • Training

Education

BS degree, geology, Texas A&M University, 2007

Summary of Areas of Expertise

Reserve and Resource Evaluations: Performs volumetric evaluations of reserves and resources through geological, geophysical and petrophysical Methods. Experienced in projects involving seismic interpretation, seismic attributes, structure and isopachous mapping, well log correlation and interpretation, reservoir characterization, probabilistic modeling, and geocellular modeling. Participates in integrated studies involving multidisciplinary team approach to analysis of seismic, geological, engineering, and economics data.

  • Works closely with petroleum engineers to quantify reservoir volumes and understand reservoir deliverability.
  • Develops the foundations for reserve evaluations, certifications and audits.
  • Integrates geological, geophysical, and petrophysical interpretations with engineering analyses.
  • Generates and evaluates geocellular models to support dynamic simulation.
  • Applies reserves standards set by market regulators in the United States, Canada, the United Kingdom, and China.
  • Uses technical standards of the Society of Petroleum Engineers, American Association of Petroleum Geologists and World Petroleum Council.

Summary of Employment

Ryder Scott Co. LP     2007 to Present
Senior Vice President – Project Coordinator (Geology)
Work closely with petroleum engineers to quantify reservoir volumes and understand reservoir deliverability. Develop the foundations for reserves evaluations, certifications and audits. Integrate geological, geophysical, and petrophysical interpretations with engineering analyses. Apply reserves standards set by market regulators in the United States, Canada, the United Kingdom, and China. Use technical standards of the Society of Petroleum Engineers, American Association of Petroleum Geologists and World Petroleum Council.

Integrated Ocean Drilling Program, Texas A&M University     2007
Student Worker – Repository Technician
Collected samples from whole core for SCAL evaluation. Core consolidation project—involved archiving and core packing. Consolidated and relocated 80km of core to a repository in Japan.

Petrophysical Solutions, Inc.      May 2006 to August 2006
Student Internship – Petrophysicist
Collected, edited, and normalized log data for database preparation. Consolidated Deepwater Gulf of Mexico log data. Training in basic log interpretation.

Occidental Petroleum Corp.
Contracted to Oxy through Petrophysical Solutions Inc.
Normalized log data for the Permian Basin.

Texas A&M University     2006
Undergraduate Assistant, Geology
Utilized scanning electron microscope photos of clastic and carbonate formations to generate detailed grain descriptions and fracture identification.

Geographical Areas of Experience

United States
Federal Offshore- Gulf of Mexico/Texas to Louisiana
Texas- Permian Basin, Caddo & Odom Lime, Gulf Coast Tertiary trends
Utah-Unita Basin

International
Midway Stage, Sabine Stage, and Wilcox Group
Bangladesh
Bolivia
Canadian Unconventional Oil and Gas Trends
China- Onshore and Offshore
Colombia
Egypt
Kazakhstan
Libya
Mexico
Nigeria
Trinidad
Venezuela

Professional Associations

Associate Member, American Association of Petroleum Geologists
Member, Houston Geological Society
Member, Society of Petrophysicits and Well Log Analysts
Member, Socity of Petroleum Engineers

Photo of Philip N. Jankowski, P.G. Managing Senior Vice President – Group Leader

Philip N. Jankowski, P.G. , Managing Senior Vice President – Group Leader

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Reservoir Modeling
  • Petrophysics
  • Unconventional Analysis
Education
BA degree, geology, Texas A&M University, 2007

Summary of Areas of Expertise
Over 10 years of experience performing volumetric evaluations of reserves through geological, geophysical and petrophysical methods, following the guidelines of the Securities and Exchange Commission (SEC) and the Society of Petroleum Engineers Petroleum Resource Management System (PRMS).…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Reservoir Modeling
  • Petrophysics
  • Unconventional Analysis

Education

BA degree, geology, Texas A&M University, 2007

Summary of Areas of Expertise

Over 10 years of experience performing volumetric evaluations of reserves through geological, geophysical and petrophysical methods, following the guidelines of the Securities and Exchange Commission (SEC) and the Society of Petroleum Engineers Petroleum Resource Management System (PRMS). Experienced in projects involving structure and isopachous mapping, well-log correlation and interpretation and reservoir characterization. Volumetric assessment of unconventional resources. Participates in integrated studies involving multidisciplinary team approach to analysis of seismic, geological, engineering and economics data as both a team member and a project coordinator.

Other Areas of Proficiency

Petrophyiscal Interpretation: Experienced with petrophyiscal interpretation software including development of reservoir specific models incorporating core, wireline formation test, drill stem tests, and production data.
Reservoir Modeling: Experienced in creating 3D geologic models for use in simulation studies.

Summary of Employment

Ryder Scott Co. LP     2007 to Present
Managing Senior Vice President – Group Leader (Geology)
Work closely with petroleum engineers to quantify reservoir volumes and understand reservoir deliverability. Develop the foundations for reserves evaluations, certifications and audits for our clients. Integrate geological, geophysical and petrophysical interpretations with engineering analyses. Apply reserves standards set by market regulators in the United States, Canada and the United Kingdom. Use technical standards of the Society of Petroleum Engineers, AAPG and World Petroleum Council.

Geographical Areas of Experience

United States
Eagle Ford
Permian Basin
Ohio/Pennsylvania Utica-Point Pleasant
Offshore Gulf of Mexico
Texas Panhandle

International
Angola
Bangladesh
Bolivia
Canada
China
Colombia
Libya
Mexico (Burgos & Veracruz Basins)
Nigeria
North Sea
Qatar
Trinidad
United Arab Emirates (Onshore & Offshore)

Additional Areas of Expertise

Unconventional Plays – Petrophyscial characterization and resource assessment of continuous hydrocarbon deposits in Permian Basin of Texas, Eagle Ford play in Texas, Utica/Point Pleasant in Ohio and Pennsylvania, Mancos play in Utah, as well as various shale fields in China.

Colombia – Geological team lead for the evaluation of reserves for various fields in the Llanos, Magdalena Valley, and Catatumbo Basins.

Mexico – Evaluated several fields in the Burgos and Veracruz Basins for PEMEX and DSP. Performed log analysis to identify pay intervals which have been confirmed through production tests. Created isopach maps to calculate reserve volumes.

Nigeria (OML 122) – Used a combination of seismic and well data to evaluate reserve volumes. Interpreted seismic horizons and incorporated well data to generate structure maps. Performed log analysis to identify pay intervals. Created isopach maps to calculate reserve volumes.

North Sea – Reviewed and quality controlled geologic Petrel models. Confirmed geologic data was integrated properly into the models. Used Petrel models to generate reserve volumes.

Professional Associations

Registered Professional Geologist in the State of Louisiana
Associate Member, American Association of Petroleum Geologists

Photo of Olga V. Logvinova Vice President

Olga V. Logvinova , Vice President

Key Attributes and Proficiencies
  • Bilingual – Fluent in Russian and English
  • Reserves Evaluations
  • Resources Evaluations
  • Geological Modeling
  • Statistical Analysis
  • Geophysical and Petrophysical Evaluations
Education
BS and MS degrees, geology, Moscow University of Oil and Gas Industry

Summary of Areas of Expertise
Extensive experience in subsurface mapping, petrophysical evaluation, 3D geological modeling.…Read More

Key Attributes and Proficiencies

  • Bilingual – Fluent in Russian and English
  • Reserves Evaluations
  • Resources Evaluations
  • Geological Modeling
  • Statistical Analysis
  • Geophysical and Petrophysical Evaluations

Education

BS and MS degrees, geology, Moscow University of Oil and Gas Industry

Summary of Areas of Expertise

Extensive experience in subsurface mapping, petrophysical evaluation, 3D geological modeling. Emphasis on integration of geological, geophysical and engineering data and analyses supporting field development and optimization projects. Expert knowledge of numerous fields and basins in Russia and Former Soviet Union states. Versatile petroleum geology skills applied to projects worldwide.

Summary of Employment

Ryder Scott Co. LP     2015 to Present
Vice President
Work closely with petroleum engineers to quantify hydrocarbon volumes and understand reservoir deliverability. Develop foundations for reserves evaluations and audits. Integrate geological, geophysical and petrophysical interpretations with engineering analyses. Apply reserves standards set by market regulators in the United States, Canada, Egypt, Mexico, United Kingdom and China. Use technical standards of the SPE, AAPG and World Petroleum Council. Provides in-house expertise on Russian well logs and resource definitions.

FDP Engineering LLP     2006 to 2015
Leading Specialist
Evaluated oil, gas and condensate reserves based on international standards, estimated hydrocarbon resources together with Ryder Scott Co. LP for assets in the following regions:

Azerbaijan
Kazakhstan
Libya
Malaysia
Ukraine
Venezuela
Russian Federation:

  • Khanty-Mansyiskiy Autonomous Okrug
  • Krasnoyarskiy Krai
  • Timan-Pechora oil province
  • Volga-Ural oil province
  • Komi Republic
  • Republic of Yakutiya (Sakha)

United Consultants FDP     2000 to 2005
Senior Specialist, E&P Department
Prepared geological data and performed reservoir engineering analysis of Priobskoye field in Western Siberia for Yukos Oil Co. Processed geological and petrophysical information, analyzed and evaluated reservoir properties, and generated 3D geological models for the Sredne-Balykskoe oil field for Yukos Oil Co. and Vazeyskoe oil field for Lukoil-Komiktek. Reviewed well stock geological data at Varyeganskoye oil field and prepared maps for Slavneft-Varyeganneft.

All-Union Oil and Gas Research Institute     1992 to 2000
Leading Engineer
Performed scientific research in the automation of geological modeling process at prospect and reserves estimation stages. Involved in development design and reservoir management. Performed geological modeling of Talinskoe and Vanyeganskoe oil fields, Lyantorskoe and Fedorovskoe gas-oil fields (Western Siberia) for development planning and management. Created a database, analyzed and evaluated reservoir properties and correlated cross-sections for Talinskoe and Vanyeganskoe oil fields.

Petroleum Geo-Services (Moscow)     1998
Geoscientist
Loaded seismic and well-log data into database. Converted and interpreted well logs. Performed reservoir modeling and mapping.

Mangyshlak Geophysical Expedition (Aktau)     1990 to 1992
Geologist
Processed and interpreted well log data coupled with seismic data involving regional and prospect evaluations.

Geographical Areas of Experience

Africa and Middle East
Angola
Egypt
Libya
United Arab Emirates
Nigeria
Oman
Central and Southeast Asia
Malaysia
Indonesia
China
Europe and Former Soviet Union
Kazakhstan
Russia
Ukraine
United Kingdom
Bulgaria
Azerbaijan
Central and South America
Venezuela
Colombia
Trinidad and Tobago
Peru
Brazil
Ecuador
Argentina
North America
Canada
Mexico
United States

Professional Associations

American Association of Petroleum Geologists

Photo of Stephen T. Phillips, P.G. Advising Senior Vice President – Geology

Stephen T. Phillips, P.G. , Advising Senior Vice President – Geology

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Geophysical, Petrophysical and Geochemical Evaluations
  • Reservoir Modeling
  • Training
  • Litigation Support
  • Project Management
Education
BS degree, geology, University of Missouri - Columbia, 1979 MA degree, geology, University of Missouri - Columbia, 1981

Summary of Areas of Expertise
Continuously employed as a petroleum geologist and geophysicist since 1981.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Geophysical, Petrophysical and Geochemical Evaluations
  • Reservoir Modeling
  • Training
  • Litigation Support
  • Project Management

Education

BS degree, geology, University of Missouri – Columbia, 1979
MA degree, geology, University of Missouri – Columbia, 1981

Summary of Areas of Expertise

Continuously employed as a petroleum geologist and geophysicist since 1981. Extensive experience in subsurface mapping, petrophysical evaluation, 2D and 3D seismic interpretation, 3D geological modeling, oil and source rock geochemistry and basin modeling. Numerous field and regional studies for petroleum exploration, development, optimization and reserves estimation in various basins and geologic settings worldwide. Emphasis on integration of geological, geophysical and engineering data and analyses supporting prospect generation, risk assessment, development well drilling, reservoir simulation, gas storage, and enhanced recovery projects. Recognized for expert-level usage of the Petrel geological modeling software and other geoscience applications. Written, verbal and graphical presentation skills often employed to communicate results to technical peers, management and clients.

Other Areas of Proficiency

Exploration and Field Development: Operational assignments while at Chevron USA include experience in the Permian basin, Mid-continent, Rocky Mountains and Gulf Coast. Comprehensive integration of data from wells and seismic to explore for and extend oil and gas reservoirs.

Applied Research: While at Chevron Oilfield Research company, supported a light-oil steam-flood pilot in the San Joaquin basin. Directed various studies in the application of organic geochemistry to regional source rock evaluation, basin modeling and reservoir continuity.

Reservoir Characterization: Guided the evolution of geoscience evaluation at Ryder Scott company to integrate classical petroleum geoscience techniques into evolving geo-modeling technologies. Provide internal and external training in Petrel-based structural and property modeling in support of reservoir optimization and resource estimation projects.

Project Management: Currently serve as geoscience manager for Ryder Scott. Responsible for staff development, training, project coordination and quality control.

Summary of Employment

Ryder Scott Co. LP     1998 to Present
Advising Senior Vice President – Geology
Reserves estimation and exploration resource evaluations using deterministic and probabilistic methods. Emphasis on seismic interpretation, reservoir mapping, petrophysical evaluation, 3D geological model construction and evaluation. Trains clients and co-workers on application of resource definitions and reservoir characterization methodologies. Expert consultant and witness in support of litigation. Directs staffing of technical teams to meet needs of specific jobs. Serve as technical advisor and project coordinator within the geoscience department.

Chevron Corp     1981 to 1998
Exploration and development geologist/geophysicist and geochemical consultant. Emphasis on integrated regional and field studies and development operations. Assisted development and evaluation of vendor interpretation software. Worked for Chevron in Denver, CO., La Habra, CA, Oklahoma City, OK and Houston, TX.

United States Geological Survey     1979
Field geologist supporting outcrop stratigraphic studies in the Tertiary and Cretaceous of southern Wyoming

Geographical Areas of Experience

Exploration
Houston Salt Basin and South Texas
Wind River, Powder River, Green River Basins, Wyoming
Raton Basin, Colorado and New Mexico
Williston Basin, North Dakota
Delaware and Midland Basins, Central Basin Platform, Texas and New Mexico
Anadarko, Arkoma Basins, Seminole Uplift, Oklahoma
Illinois Basin – Reelfoot-Rough Creek Rift, Illinois and Kentucky

Field Development Operations
Arkoma basin, Atoka gas fairway in-fill drilling
San Joaquin Basin, Buena Vista Hills steam-flood pilot

Reservoir Characterization and Reserves
North America: Gulf of Mexico, on-shore, shelf and deepwater
Mid-Continent: Arkoma, Midland, Delaware basins
Alaska: Cook Inlet and North Slope

South America: Andean Foothills, Magdalena Valley, Orinoco, Neuquen, Llanos, Oriente, Magallanes basins, Trinidad & Tobago
Mexico: Burgos, Tampico-Misantla, Chicontepec, Faja del Oro, Sabinas, Macuspana, Chiapas-Tabasco-Comalcalco, Sonda de Campeche
Middle East: Qatar – Al Shaheen, Abu Dhabi – offshore gas
Africa: Deepwater reservoirs in offshore Angola, Equatorial Guinea, Ghana and Mauritania, Algeria – Berkine basin, Egypt – Western Desert
Europe: North Sea Danish, Norwegian and UK sectors, Romania
Asia: South China Sea, Bohai Bay, Timor Sea, Gulf of Thailand, Malaysia, Kazakhstan – Caspian and onshore, India – KG basin
Australia: Northwest Shelf, Gippsland basin

Resource and Risk Evaluation
Pre-Caspian basin – Kazakhstan
Java Sea – Indonesia
Gulf of Mexico – various deepwater trends
Neuquen basin – Argentina
West Africa – deepwater Angola, Equatorial Guinea, Nigeria
Magdalena Valley – Colombia
Western Greenland

Geochemical Oil and Source Rock Studies
United States – Rocky Mountains, Midcontinent, Alaska North Slope and Chukchi Sea
International – Turkey, Saudi Arabia, India, Argentina

Professional Associations

Member of the American Association of Petroleum Geologists
Member of the Society of Exploration Geophysicists
Licensed Professional Geoscientist (State of Texas #677)

Publications

Roehler, H.W, and S. T. Phillips, 1980, Cross section of the Rock Springs and Blair formations in measured sections in the Flaming Gorge – Clay Basin area, Utah and Wyoming: U.S. Geological Survey MF no. 1216.

Phillips, S. T., 1983, Tectonic influence on sedimentation, Waltman member, Fort Union formation, Wind River Basin, Wyoming: in J.D. Lowell, ed., R.M.A.G. Symposium, Rocky Mountain Foreland Basins and Uplifts, p. 149-160.

Teaching and Presentations

Application of the Petroleum Resources Management System
Static Modeling and Mapping

Photo of Thomas M. Talley, P.G. Senior Vice President

Thomas M. Talley, P.G. , Senior Vice President

Education
MS degree, geology, Northeast Louisiana University, 1978 BS degree, geology, Northeast Louisiana University, 1975 BA degree, photography, Northeast Louisiana University, 1973

Summary of Employment
Ryder Scott Co. LP     2005 to Present Conduct evaluations of producing, non-producing and undeveloped reserves incorporating petrophysical, geophysical and engineering data to render a volumetric determination of the reservoir.…Read More

Education

MS degree, geology, Northeast Louisiana University, 1978
BS degree, geology, Northeast Louisiana University, 1975
BA degree, photography, Northeast Louisiana University, 1973

Summary of Employment

Ryder Scott Co. LP     2005 to Present
Conduct evaluations of producing, non-producing and undeveloped reserves incorporating petrophysical, geophysical and engineering data to render a volumetric determination of the reservoir. Audit and evaluate exploration and development opportunities.

Enron Corp.     1994 to 2000
Team leader of eight geo-technical professionals engaged in reserve analysis and valuation for upstream investment. Evaluated exploration and development opportunities in conventional, non-conventional and enhanced recovery reservoirs worldwide. Advised commercial teams on mergers, acquisitions and distressed debt opportunities in the upstream energy market.

Ryder Scott Co. LP     1993 to 1994
Conducted third-party reserve evaluations for client properties. Audited and evaluated exploration-and-development opportunities. Acquired and prepared data for corporate divestitures and acquisitions. Conducted due diligence for law firms, courts and creditor committees.

Fina Oil and Chemical Co.     1980 to 1992
Supervised the geological evaluation of $1 billion in acquisitions:

1988 Tenneco onshore gulf coast assets
1987 Exploration Co. of Louisiana
1986 Williams Exploration Co.
1985 Exchange Oil and Gas

Conducted oil and gas exploration, exploitation and development in south Louisiana and Texas.

Aminoil USA     1979 to 1980
Responsible for exploration activity in Lake Washington field, Plaquemines Parish, La. Regional mapping of Hidalgo and Starr counties, Texas. Field geologist and regional prospect generator.

Professional Associations

Member, American Association of Petroleum Geologists
Member, Sigma Gamma Epsilon (honorary geoscience society)

Areas of Expertise

Thirty-two years as a technical professional in energy business with diversified experience across the full spectrum of the business in both the domestic and international marketplace. Ten years of exploration, development and operations experience with both major and large independent oil companies. Eight years devoted to upstream acquisition and reservoir evaluation. Six years experience in structured finance and portfolio management. Highly skilled at analyzing complex data sets using deterministic and/or stochastic models. Proven applied science and technology abilities for problem solving in reservoir characterization and asset enhancement.

Geographical Areas of Experience

Alaska
Argentina
Bangladesh
Canada
Colombia
Gulf Coast
India
Midcontinent
North Sea
Poland
Romania
Turkey
Venezuela
West Africa
West Texas

Photo of Sara K. Tirado Vice President

Sara K. Tirado , Vice President

Education
BS degree, exploration geophysics, University of Oklahoma, Norman, 2002 MS degree, geophysics, University of Oklahoma, Norman, 2004

Summary of Areas of Expertise
Skilled in quantitative interpretation using geophysics to perform reservoir characterization and structural and stratigraphic seismic interpretation and mapping. Wide-ranging geophysical experience in regional and field-level exploration and development. Experience with time and depth seismic processing and project management.…Read More

Education

BS degree, exploration geophysics, University of Oklahoma, Norman, 2002
MS degree, geophysics, University of Oklahoma, Norman, 2004

Summary of Areas of Expertise

Skilled in quantitative interpretation using geophysics to perform reservoir characterization and structural and stratigraphic seismic interpretation and mapping. Wide-ranging geophysical experience in regional and field-level exploration and development. Experience with time and depth seismic processing and project management.

Summary of Employment

Ryder Scott Co. LP     2018 to Present
Vice President
Seismic specialist in reserves and resources certification. Use technical standards of SPE, AAPG and WPC.

Lumina Geophysical     2016 to 2018
Manager of Training and Software Support, Principal Geophysicist
Advisor on geophysical concepts. Provided technical support for seismic quantitative analysis software. Incorporated quantitative interpretation of seismic into reservoir characterization workflows. Implemented standard testing protocol, ensuring proficient, efficient software testing to produce reliable seismic attribute volumes. Analyzed client data to suggest improved workflows, tests and parameterizations.

Chevron     2004 to 2016
Senior Exploration Geophysicist – Perth, WA Australia, 2012 to 2016
Mentored earth scientists on deepwater exploration team. Supported other exploration teams with preparation and geophysical analysis. Provided geophysical support as a member of post- and pre-drill environmental response teams. Designed, managed and implemented a semi-regional velocity model for deepwater gas exploration. Screened regional leads and prioritized geophysical analysis and seismic quality improvements.

Pre-Stack Depth Migration Processor – Houston, TX, 2009 to 2012
Performed data analysis and workflow parameterization for improved noise attenuation and imaging. Worked on integrated projects to complete a pre-stack depth migration (PSDM) workflow with cross functional geophysical team. Worked on projects in Gulf of Mexico (GOM) shelf and deepwater and South Africa offshore. Managed a team to improve pre-PSDM trace processing for deepwater assets in order to shorten the timeline and increase quality.

Far Western Shelf GOM Technical Geophysicist – Lafayette, LA, 2006 to 2009
Performed detailed seismic analysis to optimize well placement and perform risk and reserves assessment. Worked with petroleum reservoir engineers to provide rock and fluid properties to incorporate in static and dynamic simulation models. Experience included far western shelf GOM fields: East Breaks, Eugene Island Deep, High Island, Garden Banks and Brazos.

Far Eastern Shelf GOM Technical Geophysicist – New Orleans, LA, 2004 to 2006
Provided geophysical support for key assets, including South Pass 78, Viosca Knoll and Hatter’s Pond. Responsibilities included well tying, time-depth velocity model building, post-stack seismic attribute mapping, pre-stack seismic attribute interpretation and seismic inversions. Worked on a cross-functional team with operation engineers, production engineers, reservoir engineers and geologists.

Geographical Areas of Experience

United States
Gulf of Mexico

International
Australia
South Africa

Professional Associations

Member, American Association of Petroleum Geologists
Member, Society of Exploration Geophysicists
Member, Houston Geological Society
Member, Geophysical Society of Houston

Teaching

Co-instructor, Nautilus RPS course with Dr. John Castagna on Seismic Attributes for Reservoir Characterization.

Photo of Robert D. Walters, P.G. Senior Vice President, Technical Advisor

Robert D. Walters, P.G. , Senior Vice President, Technical Advisor

Education
PhD degree, geophysics, University of Texas, 1991 MA degree, geophysics, University of Texas, 1985 BA degree, geology/physics, Rice University, 1982

Summary of Areas of Expertise
Resource Assessment/Prospect Generation/Analysis: Experience in prospect generation and analysis including evaluation of exploration play trends, assessment of in-place and potential recoverable hydrocarbons and performing risk and data analyses.…Read More

Education

PhD degree, geophysics, University of Texas, 1991
MA degree, geophysics, University of Texas, 1985
BA degree, geology/physics, Rice University, 1982

Summary of Areas of Expertise

Resource Assessment/Prospect Generation/Analysis: Experience in prospect generation and analysis including evaluation of exploration play trends, assessment of in-place and potential recoverable hydrocarbons and performing risk and data analyses. Studies include:

  • Gulf of Mexico Basin – South Texas Onshore and Northern Mexico – Evaluated clients’ exploration portfolios of drilling prospects in Vicksburg and Wilcox trends, south Texas and Burgos basin, northern Mexico, and made recommendations on prospectivity of proposed locations. Estimated exploration risk potential and provided opinions on proved, probable and possible recoverable reserves.
  • Onshore and Offshore India – Reviewed regional 2D seismic data, well logs and data from offset production to prepare opinion letters for client’s exploration leads and prospects onshore and offshore India.
  • Offshore west Africa (Angola) – Conducted procedural audits and resource verification reviews of client interpretations for several fields in Angola offshore blocks for purposes of certifying future technical gas supply quantities for proposed LNG plant. Performed log analysis and mapping to estimate ‘proved’ and ‘proved plus probable’ oil-in-place. This involved coordinating with multiple operators, data analyses to test reasonableness of client estimates, and ensuring that the estimates were prepared in accordance with generally accepted procedures.
  • Foz do Amazonas Basin, Offshore Brazil – As geophysicist for ExxonMobil, interpreted large-scale 3D seismic dataset to develop exploration prospects in a frontier setting. Utilized visualization techniques to high-grade leads, and worked with team members to generate portfolio of risked, drillable prospects.
  • Offshore Nova Scotia – As geophysicist for ExxonMobil, interpreted 3D seismic data for seismic facies analysis, identification of reservoir geometries through volume visualization, and generation of drillable prospects.

Exploitation-Drilling Recommendations/Review: Experience in development and production geophysics; Proposed wells for infill drilling and deeper potential. Studies include:

  • Domestic and International Reservoir Studies – At RSC, provide clients with independent evaluation of proved, probable and possible reserves to support year-end updates, acquisitions, sale packages and reviews by financial institutions. Projects can involve any combination of independent seismic interpretation and structural mapping, log correlation, petrophysical analysis, net pay mapping and reserve calculations in cooperation with petroleum engineers. Studies have included U.S. gulf coast basins (onshore Texas and Louisiana), Burgos Basin (Mexico), federal offshore Gulf of Mexico, offshore west Africa, offshore Australia, offshore Trinidad and Indonesia.
  • Louisiana Shelf and Transition Zone – As geophysicist for Unocal, performed interpretation of 2D and 3D seismic data and well logs in Vermilion Bay and South Marsh Island areas for prospect generation and reserves addition.

Geologic Modeling – Integrated Field Studies: At RSC, experience constructing geologic models for determination of hydrocarbons in-place. Studies include:

    • Offshore Gabon – Combined available geophysical and geological information in Tchatamba South field to construct a geologic model in Petrel, estimate net pay and hydrocarbon volumes, and establish and refine reserve estimates for ongoing drilling program.

 

  • Offshore Congo – Constructed geologic model in Petrel, including fault modeling, distribution of rock properties, output of structure and net pay maps, and volumetric analysis for oil-in-place estimate.
  • Offshore China – Constructed geologic model in Petrel for field in South China Sea, including modification and construction of 48 structure maps, determination of fluid contacts and distribution of petrophysical properties for 24 reservoirs, and estimation of oil-in-place for each reservoir.

 

 

Computer Applications: Knowledgeable in geological and geophysical computer applications on both PC and UNIX workstation platforms. Specific platforms include:

  • Personal Computer Applications – Geologic model building using Petrel; petrophysical studies using GeoGraphix Prizm or RSC ‘Log Wizard’ applications; seismic interpretation with SMT. Also use suite of Microsoft Office programs for reports, presentations and online communication.
  • UNIX Workstation Applications – Expert level usage of 2D and 3D seismic interpretation products including GeoQuest (GeoFrame/IESX, Synthetics and GeoViz), Landmark (SeisWorks, StratWorks, OpenWorks) and Paradigm (VoxelGeo). Familiar with AVO interpretation tools including Hampson-Russell.

Summary of Employment

Ryder Scott Co. LP     2004 to Present
Senior Geophysicist/Geologist
Perform analysis of geological and geophysical data, including mapping, seismic interpretation, log analysis and construction of geologic models, for client reserves audits, determinations of proved, probable and possible reserves, drilling recommendations and evaluation of properties and leases from exploration acreage through development and production stages.

ExxonMobil Corp.     1998 to 2003
Geophysicist
Various assignments in exploration, research and computing support, including:

  • Exploration and volume interpretation for teams working offshore Brazil (Amazon Mouth basin) and offshore eastern Canada (deepwater Nova Scotia). Combined results with structural and seismic facies mapping on 3D seismic surveys to generate drillable prospects and assess play types. Performed detailed amplitude anomaly detections in VoxelGeo and applied other proprietary volume interpretation software on regional 3D seismic datasets.
  • Research on 3D seismic attributes and volume interpretation, including generating seismic facies volumes. Performed seismic facies analysis for reservoir characterization of deepwater depositional environments in offshore west Africa (Angola Block 15), Chad and the Gulf of Mexico. Advised exploration teams on application of appropriate 3D interpretation techniques.
  • Served as dean and coordinator of Exxon’s in-house 3D seismic interpretation school. Generated training exercises and wrote research reports on geophysical interpretation techniques using 3D seismic attributes and multiple seismic volumes.
  • Geoscience computing and volume interpretation support for teams working Gulf of Mexico and Nigeria production. Developed visualization workflows, provided data management services for users and supported high-end equipment in visualization center.

Unocal Corp.     1994 to 1997
Geophysicist
As member of multidisciplinary asset team working transition zone and offshore Louisiana (Vermilion Bay and South Marsh Island areas), performed interpretation of 2D and 3D seismic data and well logs for prospect generation and reserves addition. Received training in 2D seismic data processing and acquisition, and interpretation and analysis of gravity and magnetic data.

Stanford University     1993 to 1994
Post-Doctoral Research Associate
Integrated multi-component seismic and well log data, Powder River basin, Wyoming, for detection and characterization of fracture trends in tight-gas sand reservoirs.

Chevron U.S.A. Production Co.     1991 to 1992
Geophysicist
Performed exploitation and near field exploration geophysics, Mississippi salt basin. Integrated 2D seismic interpretation with well log data and seismic modeling to generate prospects and propose new 3D seismic survey over major oil field along complexly faulted salt structure.

Professional Associations

Active Member, Society of Exploration Geophysicists
Active Member, American Association of Petroleum Geologists
AAPG Certified Petroleum Geophysicist #109

Awards

J.C. “Cam” Sproule Memorial Award, AAPG, March, 1995. (Award for best publication by an author under 35 years old; presented at Annual Convention).

Conoco Inc. Graduate Fellowship, The University of Texas at Austin.

PUBLICATIONS

Walters, R.D., 1993, Reconstruction of allochthonous salt emplacement from 3D seismic reflection data, northern Gulf of Mexico; AAPG Bulletin, v. 77, pp. 813-841.

Walters, R.D., 1989, Salt-sediment relationships on a three-dimensional seismic dataset, northern Gulf of Mexico; Tenth Annual Research Conference, Gulf Coast Section, SEPM (abs.), pp. 137-145.

Photo of Kenneth R. Whaley, P.G. Senior Vice President – Project Coordinator

Kenneth R. Whaley, P.G. , Senior Vice President – Project Coordinator

Key Attributes and Proficiencies
  • Reserves Evaluations
  • Reservoir Modeling & Subsurface Mapping
  • Petrophysics
  • Management Advisory Services
  • Teaching

Education
BS degree, geology, University of Texas, 1976 MS degree, geology, University of Houston, 1981

Summary of Areas of Expertise
More than 40 years’ experience as a petroleum geologist, including more than nineteen years’ experience as a geophysicist.…Read More

Key Attributes and Proficiencies

  • Reserves Evaluations
  • Reservoir Modeling & Subsurface Mapping
  • Petrophysics
  • Management Advisory Services
  • Teaching

Education

BS degree, geology, University of Texas, 1976
MS degree, geology, University of Houston, 1981

Summary of Areas of Expertise

More than 40 years’ experience as a petroleum geologist, including more than nineteen years’ experience as a geophysicist. Extensive experience in subsurface mapping, well log correlation and interpretation, and geophysical interpretation. Conducted numerous field studies for reserve development, optimization, evaluation and certification in various basins and lithologies worldwide. Integrated geologic and geophysical analysis supporting the geological model and reservoir characterization for reservoir simulation. Extensive experience in geological analysis of gas storage reservoirs. Experience with petrophysical interpretation and incorporating core, drill stem test and production data. Experience with petrophysical software, geological mapping and seismic interpretation software and systems. Extensive experience in presenting analytical results in peer reviews and to management. Extensive experience participating as a team member and project coordinator of integrated teams. Preparation and review of producing property sales packages for both buyers and sellers.

Selected Field Studies:
Overthrust Belt, Wyoming
Participated as the geological/geophysical member of a client-based multidisciplinary team charged with evaluating all of the company’s assets in the Wyoming Overthrust belt area. The results of this integrated study were utilized to analyze various strategic options to maximize the value of the assets. Presented results of the evaluation to senior management resulting in a renewed focus for additional exploitation opportunities for the assets.

Angola, Gabon-Offshore West Africa
Conducted an integrated geological and geophysical evaluation of fifteen prospects. Developed probabilistic evaluation of undiscovered potential resources through identification of the expected reservoir parameters, establishing ranges of reserve potential and assessing risk attributable to each prospect. These results were incorporated into a decision tree based economics model for Western Africa. The economic analysis of this area study were combined with similar analysis of the other assets of the company into a corporate economics model utilized by international investment banks to ascertain the net asset value of the company.

Huntington Beach, Ventura Fields, California
Participated as the geological/geophysical member of a multidisciplinary audit team. Provided independent third party review of work performed by operator to determine proved and unproven reserve volumes. Supplied original work and analysis which identified additional drilling, secondary and tertiary recovery opportunities. Majority of work was performed onsite in client’s office in California, which facilitated interaction with operator’s staff and improved data accessibility.

North Sea – UK Sector
Conducted an integrated geological and geophysical evaluation of five properties in the U.K. sector of the North Sea. Developed probabilistic evaluation of reserves and undiscovered potential resources through identification of expected reserve parameters, establishing ranges of reserve potential and assessing risk associated with the development of each property. These results were incorporated into an economic and risk model developed to determine total risk associated with financing the development of these properties for an international investment bank.

Exploration–Prospect Generation/Analysis: More than 40 years of experience in prospect generation and analysis including evaluation of potential recoverable hydrocarbons and performing risk and economic analyses. Studies include:

Gulf of Mexico-State and Federal Offshore Areas
Generated prospects and analyzed the exploratory potential for numerous Federal Offshore blocks and state tracts in the shelf and slope environments of the Texas, Louisiana, Mississippi, and Alabama Offshore areas. Recommended acreages for leasing and graded prospects in inventory, making recommendations regarding participation. Integrated new well data into prior structural and stratigraphic interpretations resulting in recommendations for new exploratory drilling locations.

Offshore California-State and Federal Areas
Generated prospects in the Santa Barbara Channel and Santa Maria Basins, which were the result of an integrated geological and geophysical effort. Due to this work, acreage was acquired with one successful well being drilled in the Monterey Formation. Responsible for the geological evaluation of proposed locations and newly drilled wells including the initial exploratory wells at Point Arguello field.

Central and South Texas Gulf Coast
Evaluated potential drilling opportunities and prospects in the Frio, Vicksburg, Wilcox, and Edwards trends. Made recommendations for participation resulting in successful wells being drilled on several prospects.

Offshore Venezuela
In 2003 conducted geological and geophysical review of fourteen exploratory prospects in the Platforma Deltana area offshore Venezuela. This evaluation incorporated well and seismic data to determine a range of prospect parameters which, along with prospect risk, was used to calculate unrisked and risked resource volumes for each prospect.

Exploration Portfolio Evaluation
Conducted integrated geological and geophysical review and evaluation of prospect portfolios for the purpose of defining resource magnitude and associated risk. Developed probabilistic evaluation of undiscovered potential resources through identification of the expected reservoir parameters, establishing ranges of reserve potential and assessing risk attributable to each prospect. These efforts were incorporated into studies to value acquisition targets and develop economic models for potential drilling opportunities. International studies performed in offshore West Africa, Congo, Colombia, Ecuador, Trinidad & Tobago, North Sea, Kazakhstan, and Turkmenistan.

Exploitation-Development Drilling Review/Analysis: Over 25 years of experience in evaluating and proposing wells for field development, extension, delineation and acceleration to achieve maximum reserve recovery and economic return. Selected studies include:

Gulf of Mexico-State and Federal Offshore Areas
Manager responsible for directing evaluations and initiating studies resulting in the identification of additional drilling potential in fields located in the Plio-Pleistocene, Miocene, and Jurassic trends in the state and federal waters offshore Texas, Louisiana and Alabama. As a result of these studies, new locations were identified and successfully drilled at Eugene Island 312/333, South Marsh Island 128, High Island A-586/587, and Mobile 861/862.

Uinta Basin, Utah
Directed significant portion of a major infill drilling program in the large Bluebell/Altamont field. (30 wells, $50MM). While intended to further develop oil production from the Wasatch formation, this drilling program resulted in establishing new potential gas production in the Green River Formation.

South Louisiana
Additional drilling potential was identified as a result of a detailed reservoir mapping project in the Judge Digby field. Several successful high rate gas wells were drilled to the Tuscaloosa Formation.

Integrated Field Studies:
Eastern U.S.
Utilized Landmark and Western Atlas Software to integrate geophysical, geological and petrophysical data in detailed geological models incorporated in reservoir simulation results for several gas storage fields in the Eastern U.S.

Offshore Gulf of Mexico and Onshore Gulf Coast Areas
Combined geophysical and geological data to delineate additional drilling opportunities in numerous fields in these areas. Significant increases in the asset values were achieved as a result of the studies for Eugene Island 53 and Grand Bay fields.

International
Participated in two separate integrated geological, geophysical, and engineering studies to evaluate all of the potential gas resources for offshore Colombia and Trinidad.

Other Areas of Proficiency

Management Advisory Services: Provided management advisory services for a national oil company in the Middle East by developing a systematic approach to evaluate the technical merits of tender offers for participation in the development of a premier world class oil field in that region. Services included development of the tender evaluation system, training of company personnel, presentation of expectations to companies submitting tenders, as well as, direct participation in the evaluation of the offers tendered.

Expert Witness Experience: Performed the role of “Expert Witness” for small Independent oil & gas companies, as well as for fully integrated multi-national Majors. Experience includes representing a major oil company in its dispute over the value and disposition of leases in the Eastern Gulf of Mexico, and a small domestic independent in a dispute with a leaseholder. Additional experience includes performing the role of “Expert” on behalf of a major international company in its negotiations with representatives of a country belonging to the former Soviet Union.

Summary of Employment

Ryder Scott Petroleum Consultants 1999 to Present
Senior Vice President – Project Coordinator, Geology
Evaluation of developed producing and non-producing and undeveloped oil, gas, and condensate reserves and the estimation of undiscovered resource potential of properties, both within the United States and internationally. Identification and volumetric evaluation of reserves through integrated petrophysical, geological, and geophysical methods. Interpretation of 2-D and 3-D seismic data. Delineation of future development opportunities and the assessment of additional potential derived through exploitation and exploration drilling and secondary and enhanced recovery methods. A variety of computer workstation (Landmark, Geoquest) and PC-based (HDS, GeoGraphix) software is utilized in these efforts. Experience in screening potential gas storage reservoirs and detailed analysis to investigate suitable candidates. Provide digital mapping using Technoguide Petrel software for reservoir simulation using Geoquest Eclipse software.

King Ranch Energy 1997 to 1999
Senior Operations/Engineering Geologist, handled geological operations for all company operated and outside-operated drilling, including integrating new well data into structural, stratigraphic, and petrophysical interpretations. Conducted reserve isopach mapping and routine petrophysical work utilized by company reservoir engineers for reserve assignments on company-owned fields and prospects in the Gulf of Mexico and Gulf Coast areas. Provided geological evaluations for several successful acquisitions in the Gulf of Mexico, South Texas, and West Texas areas.

Western Atlas Logging Services 1994 to 1997
Senior Geologist, Western Hemisphere Geoscience Centers, participated in fully–integrated geological, geophysical, and petrophysical field studies of client properties throughout the Western Hemisphere (Gulf of Mexico, Eastern U.S., Canada, and Argentina) utilizing Landmark and Western Atlas geoscience workstation software. As project leader for Western Atlas’ participation in the Grand Banks Alliance, directed the company’s efforts in the successful bid to develop the $3 billion Terra Nova field (offshore Nova Scotia). Western Atlas was to provide all open and cased hole logging, shoot a 3-D seismic survey, and provide petrophysical and subsurface modeling for field development. Directly responsible for assisting company log analysts and sales engineers in the interpretation of geological information acquired through well logging services (e.g. diplog and borehole image data).

Landmark Graphics Corp. 1993 to 1994
Geoscience Trainer, Landmark certified instructor in Unix-based computer workstation geological applications: StratWorks, GeodataManagement/GeodataWorks. Gained familiarity with many additional Landmark geoscience applications: SeisWorks 3-D, Z-Map+, and PetroWorks.

Enron Oil & Gas Co. 1992 to 1993
Consulting Geologist, identified prospect on producing lease in offshore Louisiana which resulted in company bid of $11.7 MM for property. Generated and evaluated several prospects in offshore Louisiana for OCS Sale 142, as well as evaluated numerous farm-in opportunities. Conducted geological evaluation and monitored drilling operations for one outside-operated exploratory well, as well as two company-operated development wells.

Pennzoil Co. 1976 to 1992
Exploration Manager, Western Division 1991 to 1992
Directed all geological and geophysical exploratory and development activities for West Texas, New Mexico, Oklahoma and Rockies (Division annual E&P budget of $41MM). Supervised 11 geoscientists along with geotechs and clerical support staff. Directed significant portion of major infill drilling program at Bluebell/Altamont Field, Uinta Basin (30 wells, 4 rigs, $50MM development program).

Division Geologist, U.S. Offshore Division 1990 to 1991
Directed division’s exploratory geological efforts for offshore Texas, Louisiana, Alabama, Mississippi, California, and onshore South Louisiana (including development efforts). Directed and conducted Central Gulf of Mexico OCS Sale 131 geological and geophysical lease sale evaluation. Successfully acquired five leases as a result of these efforts. Supervised and was responsible for the drilling of nine exploratory/exploitation wells in offshore Louisiana, Alabama, Mississippi, and South Louisiana, four of which were successful and added 214 BCF of recoverable reserves.

Advanced Explorationist, U.S. Offshore Division – Eastern District 1987 to 1990
Coordinated and conducted detailed geological studies of several of Pennzoil’s producing Gulf of Mexico fields, which included the integration of 3-D seismic data over the fields, which resulted in additional drilling and reserves booked. Participated in joint geological and geophysical evaluation of a shallow water Pennzoil lease in offshore Louisiana which resulted in two wells being drilled adding 32 BCF of recoverable reserves. Participated in lease sale evaluations in offshore Louisiana for OCS Sales 110, 113, 118 and 123, resulting in the acquisitions of several leases. Coordinated geological evaluation and exploratory drilling operations in Mobile Bay Area which resulted in the discovery of 255 BCF on three prospects.

District Geologist, U.S. Offshore Division 1983 to 1987
Directed exploration and exploitation geological staff working areas for offshore Texas, Louisiana, Alabama and Mississippi, including the supervision of 12 geologists significantly contributing to their training and professional development. Successfully bid on and acquired 51 blocks in the federal waters of Texas, Louisiana, Alabama and Mississippi. Responsible for exploratory drilling program which resulted in several significant discoveries and included one new platform being set. Received geophysical training to augment geological skills (three-month Pennzoil seismic interpretation school).

Advanced Geologist and Team Leader, California, U.S. Offshore 1982 to 1983
Participated and assisted in directing the initial exploratory drilling and geological evaluation of the giant (300 MMBO) Pt. Arguello Field, Offshore California. Directed a team of geologists and geophysicists in the evaluation of lease sale prospects for OCS Sale 68 (Southern California). Successfully acquired Pt. Arguello offsetting acreage. Participated in and directed the geological evaluation of Pennzoil acreage in offshore Santa Maria, including the first offshore Pennzoil-operated well outside the Gulf of Mexico. Resulted in a discovery of over 90 MMBO.

Associate Geologist – Advanced Geologist, U.S. Offshore 1976 to 1982
Worked as an exploration geologist in the federal and state waters of offshore Louisiana and Texas (subsurface mapping, regional framework studies, drilling operations, OCS lease sale evaluation, wellsite work, etc.). Developed geological and technical skills through in-house schools and training. Responsible for evaluation of exploratory prospects that resulted in the acquisition of two leases on which significant discoveries were subsequently made (40 BCF, 5 MMBO).

Geographical Areas of Experience

United States
Offshore:
Gulf of Mexico (Alabama, Louisiana, Texas)
Offshore California

Gulf Coast Onshore:
South Texas
South Louisiana

Various Onshore Areas:
California
Eastern U.S.
New Mexico
Oklahoma
Western U.S.

International
Argentina
Azerbaijan
Bolivia
China
Canada (TerraNova Field, Deep Panuke)
Colombia
Congo
Ecuador
Indonesia
Kazakhstan
Malaysia
North Sea
Oman
Russia
Southern English Channel
Trinidad & Tobago
Turkmenistan
U.A.E. (Abu Dhabi)
Venezuela
West Africa

Professional Associations

Registered Professional Geoscientist in the State of Texas, #2105
Certified Professional Geologist, DPGA-4807, AAPG
Member, American Association of Petroleum Geologists
Member, Geological Society of America
Member, Houston Geological Society
Member, Society of Professional Well Log Analysts
Member, Society of Petroleum Engineers

Teaching and Presentations

Landmark Certified Instructor in Unix-based computer workstation geoscience applications