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US 7,650,940 B2Granted
Cement compositions comprising particulate carboxylated elastomers and associated methods
AssigneeHalliburton Energy Services, Inc.
InventorsB. Raghava Reddy, Krishna M Ravi
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Abstract
Methods of cementing comprising: providing a cement composition comprising water, a cement, and a particulate elastomer comprising a carboxy group; and allowing the cement composition to set. Cement compositions comprising water, a cement, and a particulate elastomer comprising a carboxy group.
Claims22
A method of cementing comprising:
- providing a cement composition comprising a cement, water, and a particulate carboxylated elastomer, wherein the particulate carboxylated elastomer comprises a carboxy group, wherein the carboxy group is present in the particulate carboxylated elastomer in an amount in the range of from about 0.01% to about 20% by weight of the particulate carboxylated elastomer;
- and
- allowing the cement composition to set.
A method of cementing comprising:
- providing a cement composition comprising a cement, water, and a particulate carboxylated elastomer, wherein the particulate carboxylated elastomer comprises a carboxy group, wherein the carboxy group is present in the particulate carboxylated elastomer in an amount in the range of from about 0.01% to about 20% by weight of the particulate carboxylated elastomer;
- introducing the cement composition into a subterranean formation;
- and
- allowing the cement composition to set therein.
1 more element
A method of enhancing the mechanical properties of a cement composition, comprising:
- preparing a cement composition comprising a cement, water, and a particulate carboxylated elastomer having a carboxy group with the formula COOR wherein R is a hydrogen, a metal, an ammonium group, a quaternary ammonium group, an acyl group, an alkyl group, an acid anhydride group, or a combination thereof, wherein the carboxy group is present in the particulate carboxylated elastomer in an amount in the range of from about 0.01% to about 20% by weight of the particulate carboxylated elastomer;
- introducing the cementing composition into a subterranean formation;
- and
- allowing the cement composition to set therein.
1 more element
A method of enhancing adhesion between a cement composition and casing and/or a subterranean formation comprising:
- preparing a cement composition comprising a cement, water, and a particulate carboxylated elastomer having a carboxy group with the formula COOR wherein R is a hydrogen, a metal, an ammonium group, a quaternary ammonium group, an acyl group, an alkyl group, an acid anhydride group, or a combination thereof, wherein the carboxy group is present in the particulate carboxylated elastomer in an amount in the range of from about 0.01% to about 20% by weight of the particulate carboxylated elastomer;
- introducing the cementing composition into the subterranean formation;
- and
- allowing the cement composition to set therein.
1 more element
Dependencies are inferred from the claim text.