Fly ash cementing compositions and methods

Details Fly ash cementing compositions and methods Fly ash cementing compositions and methods

E - Fixed Constructions

21

B

E21B 33/14 (2006.01) C04B 7/52 (2006.01) C04B 24/30 (2006.01) C04B 28/02 (2006.01) C09K 8/46 (2006.01)

Patent

CA 2120310

The present invention provides fly ash cementing compositions and methods which are useful in any cementing application, and are particularly suitable for cementing in subterranean zones penetrated by well bores. The cementing compositions can include a portion of the drilling fluid used to drill a well bore as a component thereof. Also, drilling fluid can be disposed of by combining it with the fly ash cementing composition whereby it solidifies in a disposal location.

L'invention porte sur des compositions de cémentation à base de cendres volantes et sur des méthodes utiles pour l'application de tout produit de cémentation, qui conviennent en particulier pour des travaux de cémentation dans des formations souterraines dans lesquelles passent des trous de forage. Les compositions de cémentation peuvent comprendre une partie du fluide de forage utilisé au cours du forage d'un puits. De plus, ce fluide de forage peut ainsi être éliminé en le combinant à une composition de cémentation à base de cendres volantes dans laquelle il se solidifie sur un site d'élimination.

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