Non-aqueous viscosified carbon dioxide and method of use

Details Non-aqueous viscosified carbon dioxide and method of use Non-aqueous viscosified carbon dioxide and method of use

E - Fixed Constructions

21

B

31/8

E21B 43/22 (2006.01) C09K 8/68 (2006.01) E21B 43/16 (2006.01) E21B 43/267 (2006.01)

Patent

CA 2025541

A method of treating a subterranean formation is provided using a treating fluid comprising from about 0% up to about 80% by volume liquid carbon dioxide. The remainder of the treating fluid comprises a viscous substantially anhydrous liquid which may be crosslinked by a metal ion source. The treating fluid is formed by the addition of polymers or copolymers of dimethylacrylamide to the substantially anhydrous fluid.

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