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US 7,285,165 B2Granted
Cement compositions comprising set retarder compositions and associated methods
AssigneeHalliburton Energy Services, Inc.
InventorsWilliam J. Caveny, Rickey L. Morgan, Ronney R. Koch
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Abstract
Cement compositions are provided that comprise a hydraulic cement, water, and a set retarder composition, the set retarder composition comprising an acrylamide polymer derivative; and an iron compound. In some embodiments, cement compositions are provided that comprise a hydraulic cement comprising a cement, water, and a set retarder composition, the set retarder composition comprising a lignin-based retarder and an iron compound.
Claims24
A cement composition comprising:
- a hydraulic cement,
- water, and
- a set retarder composition, the set retarder composition comprising:
- an acrylamide polymer derivative, and
- a soluble iron compound present in an amount sufficient to retard setting of the cement composition.
2 more elements
A cement composition comprising:
- a hydraulic cement;
- water;
- and
- a set retarder composition, the set retarder composition comprising:
- an acrylamide polymer derivative, and
- a soluble iron compound present in the set retarder composition in an amount in the range of from about 5 percent to about 25 percent by weight.
3 more elements
A cement composition comprising:
- a hydraulic cement;
- water;
- and
- a set retarder composition, the set retarder composition comprising:
- a soluble iron compound present in an amount sufficient to retard setting of the cement composition, and
- a second component selected from the group consisting of:
- an acrylamide polymer derivative and a lignin-based retarder.
4 more elements
Dependencies are inferred from the claim text.