Methods of cementing in subterranean formations

Details Methods of cementing in subterranean formations Methods of cementing in subterranean formations

E - Fixed Constructions

21

B

E21B 33/13 (2006.01) E21B 33/14 (2006.01)

Patent

CA 2641233

Methods of cementing are provided including a method comprising: a method of cementing in a well bore comprising providing a storable cement composition; placing the storable cement composition in an annulus in a reverse-circulation direction using cementing equipment supported by a trailer, wherein the annulus is formed by an outer surface of a casing in the well bore and an inner wall of the well bore; and allowing the storable cement composition to set in the annulus. In some embodiments, the storable cement composition may comprise a hydraulic cement, an aqueous fluid, and a set retarder. In some embodiments, a storable cement composition may be transported to the well bore using a trailer connected to a towing vehicle. Additional methods are also provided.

L'invention concerne des méthodes de cimentation, y compris une méthode consistant en la cimentation d'un puits de forage en ayant recours à une composition de ciment qui peut être stockée; on place une composition de ciment stockable dans un espace annulaire en circulation inversée à l'aide d'un équipement de cimentation supporté sur une remorque, où l'espace annulaire est formé de la surface extérieure du cuvelage dans un puits de forage et la paroi interne du puits; on laisse la composition de ciment stockable durcir dans l'espace annulaire. Dans certaines versions de l'invention, la composition de ciment peut comprendre un ciment hydraulique, un fluide aqueux et un retardateur de prise. Dans d'autres versions, la composition de ciment stockable peut être transportée dans le puits de forage à l'aide d'une remorque reliée à un véhicule tracteur. D'autres méthodes sont également décrites.

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