Cement set retarding additives, compositions and methods

Details Cement set retarding additives, compositions and methods Cement set retarding additives, compositions and methods

E - Fixed Constructions

21

B

E21B 33/14 (2006.01) C04B 24/26 (2006.01) C09K 8/46 (2006.01)

Patent

CA 2113403

Abstract of the Disclosure Cement set retarding additives, set retarded hydraulic cement compositions and methods of using the cement compositions for cementing zones in wells are provided. The set retarding additives are copolymers containing monomer units formed from a first monomer of acrylic acid or methacrylic acid and a second monomer of acrylamide or a derivative of acrylamide.

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