Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation
AssigneeHalliburton Energy Services, Inc.
InventorsLance E. Brothers, Robert J. Sepulvado
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Abstract
Cement compositions having enhanced mechanical properties and comprising microspheres and carbon fibers are provided herein. Methods are provided herein for cementing in a subterranean formation using such cement compositions. The cement compositions comprise a cement material, carbon fibers, microspheres, sufficient water to form a slurry, and optionally other ingredients including an accelerant, a retardant, a surfactant, or the like.
Claims18
A method of cementing in a subterranean formation comprising the steps of:
- preparing a cement composition comprising a hydraulic cement, water, microspheres, and carbon fibers, wherein the carbon fibers are present in the cement composition in an amount in the range of from about 1% to about 15% by weight of cement;
- placing the cement composition in the subterranean formation;
- and
- allowing the cement composition to set therein.
A method of increasing the tensile strength of a subterranean formation cement composition comprising a hydraulic cement, microspheres and water, comprising the step of adding carbon fibers to the cement composition, wherein the carbon fibers are added to the cement composition in an amount in the range of from about 1% to about 15% by weight of cement.
Dependencies are inferred from the claim text.