Oil recovery method

Details Oil recovery method Oil recovery method

1984-06-07

1985-11-19

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166273, 166274, 252 855D, E21B 4322

Patent

active

045535930

ABSTRACT:
Enhanced oil recovery process comprising the injection of aqueous alkaline hypochlorite solution and aqueous alkaline alcohol solution into a subterranean formation to react with crude oil and form carboxylate surfactants in-situ. In a preferred embodiment, aqueous alkaline hypochlorite solution is followed by injection of an aqueous alcohol solution to form a carboxylate-alcohol surfactant system and then an aqueous mobility buffer.

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J. C. S. Perkin I, pp. 222-228, May 15, 1973.

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