Hydrolyzed polyacrylamide latices for secondary oil recovery

Details Hydrolyzed polyacrylamide latices for secondary oil recovery Hydrolyzed polyacrylamide latices for secondary oil recovery

C - Chemistry, Metallurgy

09

K

31/23

C09K 8/588 (2006.01)

Patent

CA 1073654

ABSTRACT OF THE DISCLOSURE A process for recovering oil from subterranean oil-bearing forma- tions which entails the use of a water treating medium. The water treating medium comprises an acrylamide-acrylic acid copolymer formed by hydrolyzing a water-in-oil emulsion containing from 2-75% by weight of finely divided acrylamide polymer to the extent that between 0.8 and about 67% of the amide groups originally present in the acrylamide polymer are converted into carboxyl groups.

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