Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations
First Claim
1. A subterranean formation settable composition comprising:
- ground unexpanded perlite;
Portland cement interground with pumicite; and
water present in an amount sufficient to form a pumpable slurry.
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Abstract
An embodiment of the present invention comprises a method of cementing comprising: placing a settable composition into a well bore, the settable composition comprising unexpanded perlite, cement kiln dust, and water; and allowing the settable composition to set. Another embodiment of the present invention comprises a method of cementing comprising: placing a settable composition into a well bore, the settable composition comprising ground unexpanded perlite, Portland cement interground with pumicite, and water; and allowing the settable composition to set. Yet another embodiment of the present invention comprises a settable composition comprising: ground unexpanded perlite; cement kiln dust; and water.
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Citations
20 Claims
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1. A subterranean formation settable composition comprising:
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ground unexpanded perlite; Portland cement interground with pumicite; and water present in an amount sufficient to form a pumpable slurry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A subterranean formation settable composition comprising:
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ground unexpanded perlite present in an amount in the range of about 1% to about 75% by weight of cementitious components in the settable composition; Portland cement interground with pumicite, wherein the Portland cement interground with pumicite has a mean particle size in the range of about 0.5 microns to about 50 microns; and water present in an amount sufficient to form a pumpable slurry. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A subterranean formation settable composition comprising:
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ground unexpanded perlite; Portland cement interground with pumicite; at least one additive selected from the group consisting of a set retarding additive, a strength-retrogression additive, a set accelerator, a weighting agent, a lightweight additive, a gas-generating additive, a mechanical property enhancing additive, a lost-circulation material, a filtration-control additive, a dispersant, a fluid loss control additive, a defoaming agent, a foaming agent, an oil-swellable particle, a water-swellable particle, a thixotropic additive, and any combination thereof; and water present in an amount in the range of about 40% to about 200% by weight of cementitious components in the settable composition, and wherein the water is present in an amount sufficient to form a pumpable slurry. - View Dependent Claims (20)
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Specification