Gel and method for reducing steam channeling

Details Gel and method for reducing steam channeling Gel and method for reducing steam channeling

C - Chemistry, Metallurgy

09

K

166/16, 400/6555

C09K 8/516 (2006.01) C09K 8/592 (2006.01) E21B 43/22 (2006.01)

Patent

CA 1282526

GEL AND METHOD FOR REDUCING STEAM CHANNELING ABSTRACT A gel-forming composition is provided comprising a PVA based substance selected from the group consisting of a polyvinyl alcohol, a polyvinyl alcohol copolymer, and mixtures thereof, an aldehyde operable for crosslinking with the PVA based substance, and water. The gel-forming composition is useful for reducing steam channeling in subterranean formations. For example, a method is provided for diverting the flow of injected steam in nonproductive steam channels in an oil reservoir turing waterflood and steam cycling operations.

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