Lightweight well cement compositions and methods

E - Fixed Constructions – 21 – B

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E21B 33/138 (2006.01) C04B 24/12 (2006.01) C04B 24/16 (2006.01) C04B 24/32 (2006.01) C04B 28/08 (2006.01) C09K 8/46 (2006.01) E21B 33/13 (2006.01)

Patent

CA 2189215

The present invention provides lightweight, fast setting cement compositions and methods which can be utilized in performing a variety of well cementing operations. The cement compositions are basically comprised of slag cement, water sufficient to form a pumpable slurry, a gas sufficient to foam the slurry and a foaming agent.

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