Set retarding additives, cement compositions and methods

Details Set retarding additives, cement compositions and methods Set retarding additives, cement compositions and methods

C - Chemistry, Metallurgy

08

F

C08F 251/00 (2006.01) C04B 24/06 (2006.01) C04B 24/10 (2006.01) C04B 24/16 (2006.01) C04B 24/24 (2006.01) C04B 24/26 (2006.01) C09K 8/46 (2006.01)

Patent

CA 2103934

Abstract of the Disclosure The present invention provides set retarding additives, set retarded hydraulic cement compositions including such additives and methods of using the cement compositions for cementing zones in wells. The set retarding additives are graft polymers comprised of a backbone sugar having one or more pendant polymerized or copolymerized vinyl compounds grafted thereto.

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