Oil-displacing aqueous solution thickened with reservoir-tailore

Details Oil-displacing aqueous solution thickened with reservoir-tailore Oil-displacing aqueous solution thickened with reservoir-tailore

1975-04-07

1976-10-05

Guynn, Herbert B.

Compositions

Leather or fur treating

166275, 260823, 260880B, 260881, 260885, E21B 4320

Patent

active

039843335

ABSTRACT:
An oil recovery process in which an aqueous solution is injected into a subterranean reservoir to displace oil through the reservoir is improved by thickening the solution with a substantially linear block copolymer containing both water-soluble and water-insoluble polymer chains. The composition and concentration of the copolymer are correlated with the temperature and injectivity of the reservoir to provide a thickened solution of selected mobility and stability within the reservoir.

REFERENCES:
patent: 3085063 (1963-04-01), Turbak
patent: 3101374 (1963-08-01), Patton
patent: 3116791 (1964-01-01), Sandiford et al.
patent: 3203955 (1965-08-01), Jackson et al.
patent: 3577357 (1971-05-01), Winkler
patent: 3634305 (1972-01-01), Johnson
patent: 3639574 (1972-02-01), Schmolka
patent: 3747676 (1973-07-01), Norton et al.
patent: 3776310 (1973-12-01), Norton et al.

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