Methods and compositions for use in cementing in cold...

Details Methods and compositions for use in cementing in cold... Methods and compositions for use in cementing in cold...

E - Fixed Constructions

21

B

E21B 33/14 (2006.01) C04B 28/04 (2006.01) C09K 8/46 (2006.01)

Patent

CA 2316059

Cement compositions for cementing wellbores in cold environments. The cement compositions may include a mixture of a reactive aluminum silicate, aluminum sulfate and hydraulic cement, and may include one or more other additives. The cement compositions may be formulated to have reduced heat of hydration as compared to conventional cements, making them suited for cementing in permafrost environments. The cement slurries may optionally be foamed using a foaming agent and energizing phase.

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