Gas flooding with dilute surfactant solutions

Details Gas flooding with dilute surfactant solutions Gas flooding with dilute surfactant solutions

1988-08-30

1989-08-15

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166274, 166309, 166268, 252 8554, E21B 4322

Patent

active

048565890

ABSTRACT:
A gas flooding process for displacing oil within a reservoir is improved by injections of a surfactant having a composition and concentration correlated with those of the brine used to remain substantially within the water phase of the injected fluid at a concentration below the critical micelle concentration of the surfactant.

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SPE 14394, "Surfactants for CO.sub.2 Foam Flooding", J. K. Borchardt, D. B. Bright, M. K. Dickson, and S. L. Wellington, Sep. 22-25, 1985.
SPE 14393, "CT Studies of Surfactant-Induced CO.sub.2 Mobility Control", S. L. Wellington, H. J. Vinegar, Sep. 22-25, 1985.
SPE/DOE 17363, "Laboratory Measurements of CO.sub.2 -Foam Mobility", H. O. Lee, J. P. Heller, Apr. 17-20, 1988.

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