Cement compositions
First Claim
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1. A foamed cement composition comprising:
- a slag cement;
a water-based fluid present in the range of from about 20% to about 180% by weight of said slag cement;
a gas present in an amount in the range of from about 5% to about 75% by volume of the foamed composition; and
a foaming agent present in an amount in the range of from about 0.5% to about 10% by weight of fluid in the composition.
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Abstract
The present invention provides lightweight, fast setting cement compositions and methods which can be utilized in performing a variety of well cementing operations. The cement compositions are basically comprised of slag cement, water sufficient to form a pumpable slurry, a gas sufficient to foam the slurry and a foaming agent.
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Citations
25 Claims
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1. A foamed cement composition comprising:
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a slag cement; a water-based fluid present in the range of from about 20% to about 180% by weight of said slag cement; a gas present in an amount in the range of from about 5% to about 75% by volume of the foamed composition; and a foaming agent present in an amount in the range of from about 0.5% to about 10% by weight of fluid in the composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A foamed cement composition consisting essentially of:
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slag cement; a water-based fluid present in the range of from about 20% to about 180% by weight of said slag cement in the composition; a gas present in an amount in the range of from about 5% to about 75% by volume of the resulting foamed composition; and a foaming agent present in an amount in the range of from about 0.5% to about 10% by weight of fluid in the composition. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification