1 International Joint Study on CO2-EOR - Study on Applicability of CO2-EOR to Rang Dong Field, offshore Vietnam - Sunao Takagi, Komei Okatsu IEA Collaborative Project on Enhanced Oil Recovery 30thAnnual Workshop and Symposium 21-23, September, 2009, Australia
International Joint Study on CO2-EOR - Study on Applicability of CO2-EOR to Rang Dong Field, offshore Vietnam -. IEA Collaborative Project on Enhanced Oil Recovery 30thAnnual Workshop and Symposium 21-23, September, 2009, Australia. Sunao Takagi, Komei Okatsu. Objectives. - PowerPoint PPT Presentation
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1
International Joint Study on CO2-EOR- Study on Applicability of CO2-EOR to Rang Dong Field,
offshore Vietnam -
Sunao Takagi, Komei Okatsu
IEA Collaborative Project on Enhanced Oil Recovery30thAnnual Workshop and Symposium
21-23, September, 2009, Australia
2Objectives
To study the CO2 EOR applicability to the offshore oil field in Vietnam through an international joint study between Japan and Vietnam
Laboratory Study Slimtube Test
Interfacial Tension Swelling
Coreflood
Simulation Study Geological Model Upscale
History Match EOS Model
Optimized CO2 EOR
CO2 Source Study Site Survey
Facility Modification Cost Estimation
International Joint Study
3Outline
Reservoir Description and Model
Laboratory Study
Compositional Model Study
CO2 Source Selection
Conclusions
4Reservoir Description and Model
Offshore Vietnam, Water Depth 50-60 meters
Production from 1998, Cumulative Production >150MMbbls
Reservoir : Fractured Basement and Lower Miocene Sand
Water Injection for both Reservoirs
Production Depletion PhasePressure DepletionHigh GORHigh Water Cut
Successful EOS model to match to the experimental data Gross CO2 utilization factor : 5.5 MSCF/STB Peripheral CO2 WAG injection selected Costly Project (Distant CO2 source) Further Study
(1) Cost reduction / optimization study(2) Further laboratory and simulation studies on enriched hydrocarbon gas injection case(3) Pilot test design for both CO2 injection and hydrocarbon gas injection cases