Low heat of hydration cement compositions and methods of...

C - Chemistry – Metallurgy – 04 – B

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C04B 28/04 (2006.01) C04B 18/14 (2006.01) C09K 8/467 (2006.01) E21B 33/14 (2006.01)

Patent

CA 2645920

A method of servicing a wellbore in a subterranean formation, comprising preparing a cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag, vitrified shale, calcium sulfate hemi-hydrate or combinations thereof, and placing the cement composition in the wellbore. A cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag, vitrified shale, calcium sulfate hemi-hydrate or combinations thereof. A cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag.

La présente invention concerne un procédé d'entretien d'un puits dans une formation souterraine, comprenant la préparation d'une composition de ciment comprenant de l'eau et un matériau de ciment, le matériau de ciment comprenant en outre un laitier de haut fourneau, du schiste vitrifié, du sulfate de calcium hémi-hydraté ou leurs combinaisons et le fait de placer la composition de ciment dans le puits. La présente invention concerne une composition de ciment comprenant de l'eau et un matériau de ciment, le matériau de ciment comprenant en outre un laitier de haut fourneau, du schiste vitrifié, du sulfate de calcium hémi-hydraté ou leurs combinaisons. La présente invention concerne une composition de ciment comprenant de l'eau et un matériau de ciment, le matériau de ciment comprenant en outre un laitier de haut fourneau.

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