Settable compositions comprising wollastonite and pumice and methods of use
AssigneeHalliburton Energy Services, Inc.
InventorsJiten Chatterji, D. Chad Brenneis, Crystal L. Keys
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Abstract
Methods and compositions are provided that relate to cementing operations, including a method of cementing that may comprise providing a settable composition that may comprise wollastonite, pumice, a calcium-ion source, and water, wherein the wollastonite may be present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice, and wherein the pumice may present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice. Embodiments of the method further may comprise allowing the settable composition to set.
Claims20
A method of cementing comprising:
- providing a settable composition comprising:
- wollastonite;
- pumice;
- a calcium-ion source in an amount in a range of from about 0.1% to about 25% by combined weight of the wollastonite and pumice;
- and
- water in an amount in a range of from about 40% to about 200% by combined weight of the wollastonite and pumice;
- wherein the wollastonite is present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice;
- and
- wherein the pumice is present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice;
- introducing the settable composition into a subterranean formation;
- and
- allowing the settable composition to set.
A method of cementing comprising:
- providing a settable composition, wherein the providing the settable composition comprises:
- preparing a base fluid comprising water and lime;
- preparing a dry blend comprising wollastonite and pumice, wherein the wollastonite is present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice, wherein the pumice is present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice;
- combining the base fluid and the dry blend to form the settable composition that is free of Portland cement;
- introducing the settable composition into a subterranean formation;
- and
- allowing the settable composition to set.
Dependencies are inferred from the claim text.