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US 5,711,801 AGranted
Cement compositions
OwnerJiten Chatterji, James E. Griffith +2inventors
InventorsJiten Chatterji, James E. Griffith, Patty L. Totten, Bobby J. King
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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.
Claims25
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.
2 more elements
A foamed cement composition consisting essentially of:
- 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.
2 more elements
Dependencies are inferred from the claim text.