Cement compositions with improved mechanical properties and...

Details Cement compositions with improved mechanical properties and... Cement compositions with improved mechanical properties and...

C - Chemistry, Metallurgy

04

B

C04B 28/02 (2006.01) C04B 14/38 (2006.01) C04B 38/02 (2006.01) C04B 38/10 (2006.01) E21B 33/13 (2006.01)

Patent

CA 2524620

The present invention provides foamed cement compositions with improved mechanical properties and methods of cementing in subterranean formations, particularly in conjunction with subterranean well operations. The foamed cement compositions comprise carbon fibers, a hydraulic cement material, sufficient water to form a slurry, an expanding additive, and optionally other ingredients including a weighting agent, a retarding or accelerating agent, or the like.

La présente invention concerne des compositions de ciment expansé aux propriétés mécaniques améliorées, ainsi que des procédés de cimentation dans des formations souterraines, en particulier conjointement à des opérations de forage souterraines. Lesdites compositions de ciment expansé comprennent des fibres de carbone, un matériau de ciment hydraulique, une quantité d'eau suffisante pour former une pâte, un additif d'expansion et, éventuellement, d'autres ingrédients, y compris un agent alourdissant, un agent retardateur ou accélérateur, ou un autre agent semblable.

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