Back to results
US 6,270,565 B1Granted
Methods and compositions for cementing pipe in well bores
AssigneeHalliburton Energy Services, Inc.
InventorJames F. Heathman
Life of this patent
Estimating the term…
Abstract
Methods and compositions for cementing pipe strings in well bores are provided. The compositions are basically comprised of a hydraulic cement, water, an in situ foam generating additive and a water-wetting foam stabilizing surfactant.
Claims22
A cement composition comprising:
- a hydraulic cement;
- water in an amount sufficient to form a pumpable slurry;
- an in situ foam generating additive present in an amount in the range of from about 0.1% to about 1% by weight of hydraulic cement in said composition;
- and
- a water-wetting foam stabilizing surfactant present in an amount in the range of from about 0.5% to about 7% by weight of hydraulic cement in said composition.
2 more elements
A cement composition for cementing a pipe string in a well bore comprising:
- a hydraulic cement;
- water in an amount sufficient to form a pumpable slurry;
- aluminum powder present in an amount in the range of from about 0.1% to about 1% by weight of hydraulic cement in said composition;
- and
- a water-wetting foam stabilizing surfactant present in an amount in the range of from about 0.5% to about 7% by weight of hydraulic cement in said composition.
2 more elements
A cement composition for cementing a pipe string in a well bore comprising:
- Portland cement;
- water in an amount sufficient to form a pumpable slurry;
- aluminum powder present in an amount in the range of from about 0.1% to about 1% by weight of hydraulic cement in said composition;
- and
- an anionic surfactant comprising an ethoxylated alkali metal salt of an alkylpolyether sulfonic acid present in an amount in the range of from about 0.5% to about 7% by weight of cement in said composition.
2 more elements
Dependencies are inferred from the claim text.