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US 6,904,971 B2Granted
Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations
AssigneeHalliburton Energy Services, Inc.
InventorsLance E. Brothers, William J. Caveny
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Abstract
Cement compositions with improved corrosion resistance, and methods of using the compositions in a subterranean formation, are provided. The cement composition comprises a high alumina cement, vitrified shale, a soluble phosphate, and water sufficient to form a slurry. Optionally, other additives may be included, such as accelerants, retardants, dispersants, and the like.
Claims26
A method of cementing in a subterranean formation comprising the steps of:
- providing a cement composition comprising a high alumina cement, vitrified shale, water, and a soluble phosphate;
- placing the cement composition into the subterranean formation;
- permitting the cement composition to set therein.
Dependencies are inferred from the claim text.