Carbon dioxide foam flooding
Patent
·
OSTI ID:6500810
A method of conducting an enhanced oil recovery process in a subterranean reservoir is described. There is injected into the reservoir as a sweep fluid a foam containing carbon dioxide, water, and a foaming agent having the formula ROCOCH/sub 2/SO/sub 2/OM, where R is a straight chain alkyl radical having from 10 to 16 carbon atoms, and M is an alkali metal or ammonium cation, with sodium being preferred. A particularly preferred foaming agent is sodium lauryl sulfoacetate.
- Assignee:
- Union Oil Co.
- Patent Number(s):
- US 4088190
- OSTI ID:
- 6500810
- Country of Publication:
- United States
- Language:
- English
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