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US 7,296,626 B2Granted
Liquid additive for reducing water-soluble chromate
AssigneeHalliburton Energy Services, Inc.
InventorsKaren Luke, Roger S. Cromwell
Life of this patent
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Abstract
Methods for cementing and cement compositions are provided, wherein the cement composition comprises cementitious material and an aqueous suspension of zeolite and a chromate reducing agent.
Claims14
A method of cementing an area comprising:
- mixing a cementitious material with water and an aqueous suspension comprising water, zeolite and a chromate reducing agent to form a cement composition, wherein the aqueous suspension comprises zeolite in an amount of from about 67 to about 100 weight percent of the weight of the water, and chromate reducing agent in an amount of from about 42 to about 167 weight percent of the weight of the zeolite, and from about 28 to about 111 weight percent of the weight of the water in the aqueous suspension;
- placing the cement composition in the area;
- and
- allowing the cement composition to set therein.
1 more element
A method of cementing an area comprising:
- mixing a cementitious material with water and an aqueous suspension comprising water, zeolite and a chromate reducing agent to form a cement composition, wherein the aqueous suspension comprises zeolite in an amount of from about 48 to about 150 weight percent by weight of the water, and chromate reducing agent in an amount of from about 103 to about 167 weight percent by weight of the zeolite and from about 49 to about 167 weight percent by weight of the water in the aqueous suspension;
- placing the cement composition in the area;
- and
- allowing the cement composition to set therein.
1 more element
Dependencies are inferred from the claim text.