Carbon dioxide foam flooding

Details Carbon dioxide foam flooding Carbon dioxide foam flooding

1977-02-10

1978-05-09

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166305R, E21B 4322

Patent

active

040881903

ABSTRACT:
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: ##STR1## wherein 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.

REFERENCES:
patent: 3311167 (1967-03-01), O'Brien et al.
patent: 3330346 (1967-07-01), Jacobs et al.
patent: 3342256 (1967-09-01), Bernard et al.
patent: 3344857 (1967-10-01), Gilchrist
patent: 3376924 (1968-04-01), Felsenthal et al.
patent: 3893511 (1975-07-01), Root
patent: 4036764 (1977-07-01), Fischer et al.
Khan et al., "Foam Proves Effective Way to Solve Production Problems", The Oil & Gas Journal, Jun. 5, 1967, pp. 126-129.

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