Improved Efficiency of Miscible C02 Floods and Enhanced Prospects for C02 Flooding Heterogeneous Reservoirs
- Gordon
- Eric
A grant, �Improved Efficiency of Miscible CO2 Floods and Enhanced Prospects for CO2 Flooding Heterogeneous Reservoirs,� DOE Contract No. DE-FG26-97BC15047, was awarded and started on June 1, 1997. This project examines three major areas in which CO2 flooding can be improved: fluid and matrix interactions, conformance control/sweep efficiency, and reservoir simulation for improved oil recovery. In this quarter we continued the examination of synergistic effects of mixed surfactant versus single surfactant systems to enhance the properties of foams used for improving oil recovery in CO2 floods. The purpose is to reduce the concentration of surfactants and find less expensive surfactants. Also, we are refining reservoir models to handle the complex relationships of CO2-foam and heterogeneous reservoirs. The third area of our report this quarter comprises the results from experiments on CO2-assisted gravity drainage in naturally fractured oil reservoirs. Two more CO2 core flood experiments have been conducted under reservoir conditions to investigate the effect of pressure on oil recovery efficiency during CO2-assisted gravity drainage.
- Research Organization:
- Federal Energy Technology Center, Morgantown, WV, and Pittsburgh, PA
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG26-97BC15047
- OSTI ID:
- 1609
- Report Number(s):
- DE-FG26-97BC15047--03; ON: DE00001609
- Country of Publication:
- United States
- Language:
- English
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