Reservoir-tailored CO.sub.2 -aided oil recovery process

Details Reservoir-tailored CO.sub.2 -aided oil recovery process Reservoir-tailored CO.sub.2 -aided oil recovery process

1981-03-12

1983-04-19

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166273, 166274, E21B 4322, E21B 4706

Patent

active

043802664

ABSTRACT:
An oil recovery process that utilizes an injection of CO.sub.2, surfactant and water is improved by using a selected polyalkoxylated alcoholic or phenolic surfactant which is capable of forming three particular types of dispersions with the fluids in the reservoir at the reservoir conditions which are maintained during the process.

REFERENCES:
patent: 3084743 (1963-04-01), West et al.
patent: 3342256 (1967-09-01), Bernard et al.
patent: 3529668 (1970-09-01), Bernard
patent: 4088190 (1978-05-01), Fischer et al.
patent: 4113011 (1978-09-01), Bernard et al.
patent: 4136738 (1979-01-01), Haynes, Jr. et al.

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