Gas flooding with surfactants enriched in olefin disulfonate

Details Gas flooding with surfactants enriched in olefin disulfonate Gas flooding with surfactants enriched in olefin disulfonate

1988-12-19

1990-03-27

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166268, 166275, 1663051, 166309, 252 8554, F21B 4322

Patent

active

049112384

ABSTRACT:
An improved process for recovering oil by injecting a mixture of noncondensible gas and gas foam surfactant into an oil-containing subterranean reservoir, the improvement provided by using a surfactant enriched in olefin disulfonate. The sulfactant may be used in either a gas drive or a gas soak process. Disulfonate-enriched gas foam surfactants and mixtures are also described.

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SPE 14394, "Surfactants for CO.sub.2 Foam Flooding," by J. K. Borchardt et al., 1985.

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