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US 7,740,066 B2Granted
Additives for high alumina cements and associated methods
AssigneeHalliburton Energy Services, Inc.
InventorsYing Xu, B. Raghava Reddy, Rickey Lynn Morgan
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Abstract
The present invention includes methods and compositions that include a composition comprising a high alumina cement; a salt comprising at least one salt selected from the group consisting of an acidic salt, a neutral salt, and a low basicity salt; and a swellable clay; and methods of using that composition in subterranean formations.
Claims20
A method comprising:
- providing a cement composition that comprises:
- a high alumina cement;
- a salt comprising at least one salt selected from the group consisting of:
- an acidic salt, a neutral salt, and a low basicity salt;
- a swellable clay;
- and
- water in an amount sufficient to form a pumpable slurry;
- introducing the cement composition into a well bore that penetrates a subterranean formation;
- and
- allowing the cement slurry to set to form a set cement composition, wherein the set cement composition has a volume increase as measured at atmospheric pressure of between about 10% and about 20% over the volume of the cement slurry.
7 more elements
Dependencies are inferred from the claim text.