EOR in the US, Success of Gas Injection

Transcription

1 Taking on the World s Toughest Energy Challenges. TM EOR in the US, Success of Gas Injection James D. Rose Business Development Manager, Asia Pacific 1

2 Introduction China estimates 3.5 billion tons (26 Billion barrels) of oil recovery potential from gas injection*. The US has significant experience in gas injection. Gas injection is a key element of US EOR success. Leveraging past experience, while employing leadingedge technology and innovation, will maximize recovery and reduce cost. * China Utilization of Greenhouse Gas as Resource in EOR and Storage Underground, Pingping Shen (Research Institute of Petroleum E&P, Petrochina), May

3 U.S. EOR EOR is currently 10% of U.S. oil production Significant portion by gas injection (CO2, HC, N2). Previously 90% of EOR Production has been in the U. S. Advanced maturity of resource development. US experience applicable to global opportunities 3

4 ExxonMobil Approach To Implementing EOR Fundamental Studies at Rock-Pore Level EOR Process Commercialization Geologic Modeling Laboratory Studies Surveillance and Flood Management Reservoir / Process Simulations Field Pilots ExxonMobil uses an integrated approach to EOR development and implementation - Leverages state-of-art technology (examples: EM power for simulation, CFZ for gas separation) - Optimized through-out life-cycle 4

5 ExxonMobil Experience: Hawkins Example Immiscible Flood Gas Injection (Hydrocarbon, then Flue Gas, then Nitrogen) Hawkins, Texas Lithology Perm Well spacing Thickness Clastic 3000 md 20-acre 400 ft Key Learnings: Double displacement potential Operational advantages of Nitrogen Ultimate recovery up to 70% 5

6 Conclusions China can increase resources significantly if it can fully exploit identified oil recovery potential from gas injection When CO 2 injected, carbon capture also a key result Maximum recovery, at reduced cost, possible by leveraging industry experience while employing leadingedge technology and innovation ExxonMobil has significant world-wide experience and is interested in helping China achieve its gas injection potential. 6

7 Addendum 7

8 EXXONMOBIL EOR EXPERIENCE Involvement with over a quarter of industry s gas projects and one-third of the world s production from miscible EOR Prudhoe Bay: HC Gas Injection Battrum and Fosterton : Insitu Combustion Loudon: Surfactant Flood Pembina: Polymer Flood 17 Canadian Fields: HC Gas Injection Judy Creek, Wizard Lake, Penbina Nisku, Rainbow River, Hibernia Snorre, Statfjord:, Grane HC Gas Injection Ruhlermoor, Georgsdorf: Steamflood Tengiz: Sour Gas Injection Cold Lake: Cyclic Steam Stimulation Iron River and Celtic: Single-Well SAGD 5 California Projects: Steamfloods and Insitu Combustion 19 West US Projects: CO2 Injection Means, Salt Creek, Aneth, Slaughter, Wasson, among others W. Yellow Creek: Polymer Flood Hawkins: Gas Injection Jay: N2 Injection South Pass 89: HC Gas Injection Chad: Polymer Flood (under evaluation) Abu Dhabi: Gas Injection (under evaluation) Malaysia: Gas Injection (under evaluation) Gas Injection (Miscible, Immiscible) Chemical Processes Thermal Processes Polymer Flooding 8

9 U.S. Permian Basin (Central US): CO2 EOR Results Oil Production (koebd) Oil Production (MBO) 2,000 1,800 1,600 1,400 1,200 1, Permian Basin Crude Oil Production since Basin Infrastructure built Basin Exploitation 200 Field start-ups 0 Actual Projected Source: Oil and Gas Journal, EIA 1,200 1, st CO 2 Flood CO2 - EOR Base Permian Basin Cumulative EOR Production since 1970 Over 1 Billion Barrels Cumulative Source: Oil and Gas Journal, EIA 95 Billion Bbls Original Oil in Place Numerous world-scale opportunities (3 to 6 billion barrels in place) Production peak in 1974 at 1.9 MMB/D Fields previously subject to extensive water-flood CO 2 EOR commenced in 1973 Production today is 0.85 MMB/D 0.19 MMB/D from 50 CO 2 EOR projects Injecting 1.4 GCFD of CO 2 1 Billion Bbls EOR recovery to date 7 TCF of CO 2 sequestered 2,500 km of major pipelines built Up to 11 Billion Bbls EOR potential Incremental recovery of 10-15% OOIP expected for most projects. Net CO 2 utilization of SCF/incremental bbl (2-5 TCF/GB) 9

10 ExxonMobil Permian Basis Example: Means Field Miscible CO 2 pattern flood Miscible / WAG Means, USA Streamline Analysis EOR Displaceable Oil (Sorw - Sorm) PV Lithology Dolomite Perm 20 md ( ) Well spacing 10-acre/20-acre Thickness 300 ft Improved recovery over waterflood by 15% through infill drilling, waterflood improvements and CO2 miscible flooding 10

11 EM power Capabilities The advanced capabilities of EM power allow ExxonMobil to model reservoirs in ways that were not previously possible Dual Permeability Example: Simulation of Complex Fractured Reservoir Unstructured Gridding Optimized Grid and Scaleup Optimize Calculations by Region Integrated Facilities & Flexible Well Management Advanced Visualization Time (years) Compositional capabilities fully integrated with other next-generation simulation capabilities 11

12 Controlled Freeze ZoneTM Technology Controlled Freeze Zone TM Technology (CFZ) capable of processing a wide range of CO 2 and H 2 S compositions at lower cost than conventional technologies Figure 2, Controlled Freeze ZoneTM Technology for Developing Sour Gas Reserves, as presented in Abu Dhabi at May 2009 GasTech Conference. 12