Loading patent…
AssigneeHalliburton Energy Services, Inc.
InventorsB. Raghava Reddy, Krishna M. Ravi, Karen Luke, Rickey L. Morgan
Estimating the term…
The present invention relates to methods of generating gas in and foaming well treating fluids during pumping of the treating fluids or after the treating fluids are placed in a subterranean zone, or both. A method of the present invention provides a method of making a foamed well fluid that comprises a gas comprising the steps of combining an aqueous fluid, a surfactant, an encapsulated activator, and a gas generating chemical, the gas generating chemical being present in an amount in the range of from about 0.1% to 100% of a water component in the aqueous well fluid; and allowing the gas generating chemical and the encapsulated activator to react so that gas is generated in the aqueous fluid to form a foamed well fluid. Methods of cementing, fracturing, cementing compositions, fracturing fluid compositions, and foamed well fluid compositions also are provided.
A method of cementing in a subterranean zone comprising the steps of:
A method of fracturing a subterranean zone comprising the steps of:
A method of making a foamed well fluid that comprises a gas comprising the steps of:
A cement composition that comprises a hydraulic cement, a water component, a gas generating chemical, and an encapsulated activator.
A fracturing fluid that comprises a water component, a gelling agent, a gas generating chemical, and an encapsulated activator.
A foamed well fluid comprising a gas, the gas being generated by a reaction of a gas generating chemical and an encapsulated activator.
Dependencies are inferred from the claim text.