Settable compositions comprising wollastonite and pumice and methods of use
First Claim
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1. 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 sufficient to form a pumpable slurry and present 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, andwherein the settable composition is free of an additional cementitious components or comprises the additional cementitious components in an amount of about 1% or less by combined weight of the wollastonite and pumice.
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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.
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Citations
20 Claims
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1. A settable composition comprising:
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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 sufficient to form a pumpable slurry and present 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, and wherein the settable composition is free of an additional cementitious components or comprises the additional cementitious components in an amount of about 1% or less by combined weight of the wollastonite and pumice. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 20)
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11. A settable composition comprising:
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a cementitious component, wherein the cementitious comprises wollastonite and pumice; lime; and water; wherein the settable composition is free of any additional cementitious components or comprises the additional cementitious components in an amount about 1% or less by weight of the cementitious component. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification