High temperature well cementing methods and compositions

Details High temperature well cementing methods and compositions High temperature well cementing methods and compositions

E - Fixed Constructions

21

B

31/28

E21B 33/13 (2006.01)

Patent

CA 1258366

Abstract of the Disclosure Set retarded hydraulic cement compositions for cementing high temperature subterranean zones penetrated by wellbores and methods of using the compositions are provided. The cement compositions include effective amounts of a setting rate retarder comprised of one or more methylene phosphonic acid derivatives.

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