Improved Efficiency of Miscible C02 Floods and Enhanced Prospects for C02 Flooding Heterogeneous Reservoirs
In this quarter, we used parallel isolated composite core to test the effectiveness of foam on oil recovery efficiency. This composite core differs from the previous core in two areas: 1) Pyrex® glass beads were used in the center region to form a high permeability region and 2) a fired Berea sandstone was used in the annulus region to form a low permeability region. We also started to conduct surfactant adsorption measurements on coreflooding substrates. Static measurements with three anionic surfactants were conducted on Pyrex® glass beads. Surfactant concentrations were determined to calculate the amount of surfactant adsorbed on the substrate. The preliminary results showed that the loss of surfactant due to adsorption at 500 ppm concentration were 0.34 mg/cm 3 , 0.29 mg/cm 3 , and 0.19 mg/cm 3 for surfactants Alipa®CD128, Chaser-CD1040 and Dowfax-8390, respectively. Simulations were performed to assess the applicability of horizontal wells as a tool to increase oil recovery in CO2 injection projects.
- Research Organization:
- Federal Energy Technology Center, Morgantown, WV, and Pittsburgh, PA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG26-97BC15047
- OSTI ID:
- 1626
- Report Number(s):
- DE-FG26-97BC15047-05; ON: DE00001626
- Country of Publication:
- United States
- Language:
- English
Similar Records
Improved Efficiency of Miscible C02 Floods and Enhanced Prospects for C02 Flooding Heterogeneous Reservoirs
Improved efficiency of miscible CO{sub 2} floods and enhanced prospects for CO{sub 2} flooding heterogeneous reservoirs. Quarterly technical progress report, January 1, 1996--March 31, 1996