John Walker

Experience

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  University of Texas at Austin

  Jun 1978 - May 1980

  Research Scientist

  Enhanced Oil Recovery Research: Managed a research radioactive laboratory involved in studies of multi-component surfactant phase behavior with tracer core floods. Performed laboratory technician duties as required in addition to supervising 3 undergraduates.

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  Hess Corporation

  May 1981 - Apr 1986

  Corporate technical support providing process simulation, design, and trouble shooting for production wells, Gas/Oil Separation Plants and gas plants, with workover procedures, operational procedures, project economic analysis, feasibility studies, equipment specs, contract specs, and project coordination. Production management of reservoirs under primary, secondary water flood, and tertiary CO2 flood with responsibilities for well site logging, perforating, completion, and potential testing; development of drilling, casing, and logging prognosis for infield drilling and exploration; design and optimization of artificial lift. Lead engineer for control of individual injection well water/CO2 injection rates for optimum oil recover.

  • Staff Engineer: Process Design and Troubleshooting

    May 1984 - Apr 1986

  • Petroleum Engineer

    May 1981 - May 1984
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  Environmental Protection Agency

  Oct 1987 - Mar 1988

  Petroleum Engineer

  Program management of the Federal Underground Injection Control (UIC) Program as delegated to the Railroad Commission of Texas and the Texas Water Commission. Osage Indian Lands UIC enforcement.

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  Texas Oil & Gas - a division of US Steal

  Mar 1988 - Apr 1990

  Production Operations Management

  VP Staff position - Coordination of production activities with Gas Supply, Gas Sales, Liquids Marketing and Accounting Departments for optimization of cryo expander and refrigeration gas plant operations in conjunction with marketing and gas supply projections and commitments. Plant process simulation for optimization and modifications of cryo expander and refrigeration straddle gas plants. Contract analysis and yearly cost of service development. Capital and Fiscal budget development and monitoring. Show less

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  Bechtel Petroleum Operations, Inc

  Jun 1990 - Feb 1992

  Facilities Process Engineer

  Provided technical service process support to gas plant operations and various projects. Field operations included refrigeration and lean oil absorption gas plants (280 mmscfd total capacity) with full NGL fractionation trains, and compressor stations with TEG facilities. Special studies included:• Hysim simulation models and feasibility studies for a grass roots UOP’s Butane isomerization process• Simulation development of a fourth generation cryo expander plant (99.9 % ethane recover, minus 120°F with 200 psi pressure drop), and • Hysim simulation models to develop operating parameters for an iso/normal butane splitter.• Performed gas plant performance test and evaluation of each individual piece of equipment on two cryo refrigeration and one lean oil plant. Show less

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  Saudi Aramco

  Mar 1992 - Dec 2010

  Operations Engineering Process Engineer

  Engineering Department Staff Engineer: “Best–In-Class” staff engineering reporting directly to the Manager of Northern Area Technical Support Department. EHS Coordinator: Consultant to one engineering and four operating departments for the development of process and administrative solutions to corporate, national and international environmental compliance. Crude Stabilization Group Leader: Group Leader over 7,000,000 bbl per day AL, AXL, SAL and Khuff condensate stabilization actual throughput. Capital Project Budget Coordinator – VP Staff: Administrative project work. Capital Projects Proponent Representative: Major and minor capital budget development, project scope development and implementation through commissioning. Riyadh Refinery; Yield Improvement Task Force: Developed Hysys simulation models of the Gas Concentration & Platformate Units with detailed project scope for yield improvement modifications. Jeddah Refinery Capital Projects Proponent Representative: Major and minor capital budget development, project scope development and implementation through commissioning.NGL Operations Engineer: Operations engineering troubleshooting of 500 mmscfd compression, gas treating and NGL liquids stabilization plants. Show less

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  Fluor Corporation

  Jul 2011 - Jul 2016

  Process Lead Engineer – Lead process position for the ExxonMobil (ENL) Sakhalin Island Production Projects Group (PPG) and the North Chayvo Expansion (C2ND). Process Engineer – Assumed system lead process systems detail design responsibilities following completion of PST/SIF-RT evaluation of the ExxonMobil Hebron project. Lead Process Engineer in development of PFDs, equipment list, utilities requirements and vendor package cost estimates for a wet air oxidizer and thermo incinerator for the Dow Alliance project.Area Lead Process Engineer FEED phase of the Abu Dhabi Marine Operating Company (ADMA-OPCO) NASR field in the UAE. Show less

  • Lead Process Engineer

    Jul 2011 - Jul 2016

  • Lead Process Engineer

    Jul 2011 - Jun 2016