Carbon dioxide foam flooding

Details Carbon dioxide foam flooding Carbon dioxide foam flooding

E - Fixed Constructions

21

B

31/14

E21B 43/22 (2006.01) C09K 8/594 (2006.01)

Patent

CA 1102540

"ABSTRACT OF THE DISCLOSURE" A method of conducting an enhanced oil recovery process in a subterranean reservoir wherein, as part of the process, there is injected into the reservoir as a sweep fluid a foam containing carbon dioxide, water and a foaming agent having the formula: Image 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.

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