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US 11,926,788 B2Granted
Foamed treatment fluids for lost circulation control
AssigneeHalliburton Energy Services, Inc.
InventorsBrendon Chia Han Tan, Samuel Jason Lewis, Thomas Jason Pisklak, Paul Joseph Jones
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Abstract
Compositions for foamed treatment fluids are disclosed. The foamed treatment fluid may comprise a cement, a viscosifying agent, a thixotropic additive, a foaming surfactant, a gas, and water. The foaming surfactant may comprise a polyethylene glycol alkyl ether (C5-C10), sulfate ammonium salt.
Claims19
A foamed treatment fluid comprising:
- a cement;
- a viscosifying agent;
- a thixotropic additive;
- a foaming surfactant;
- a gas;
- and
- water;
- wherein the foaming surfactant comprises a polyethylene glycol alkyl ether (C6-C10), sulfate ammonium salt.
5 more elements
A foamed treatment fluid comprising:
- a cement comprising at least one cementitious material selected from the group consisting of a Portland cement, pozzolanic cement, gypsum cement, high alumina content cement, slag cement, a Sorel cement, and combinations thereof;
- a viscosifying agent comprising a synthetic clay;
- a thixotropic additive comprising at least one component selected from the group consisting of fumed silica, sodium silicate, potassium silicate, silicic acid, colloidal silicic acid, and combinations thereof;
- a foaming surfactant comprising a polyethylene glycol alkyl ether (C6-C10), sulfate ammonium salt;
- a gas comprising nitrogen;
- and
- water, wherein the foamed treatment fluid has a 10-second static gel strength of at least about 15 lbf/100 ft2, and a 10-minute static gel strength of at least about 70 lbf/100 ft2;
- and wherein the foamed treatment fluid has a density of about 8 lb/gal to about 11 lb/gal.
5 more elements
A foamed treatment fluid comprising:
- a cement comprising a Portland cement and present in an amount of about 10% to about 30% by weight of the foamed treatment fluid;
- a viscosifying agent comprising a synthetic clay and present in an amount of about 0.25% to about 5% by weight of the foamed treatment fluid;
- a thixotropic additive comprising a sodium silicate and present in an amount of about 0.1% to about 5% by weight of the foamed treatment fluid;
- a foaming surfactant present in an amount of about 0.25% to about 5% by weight of the foamed treatment fluid;
- a gas comprising nitrogen and present in an amount of about 1% to about 50% by weight of the foamed treatment fluid;
- and
- water, wherein the foaming surfactant comprises a polyethylene glycol alkyl ether (C6-C10), sulfate ammonium salt.
4 more elements
Dependencies are inferred from the claim text.