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AssigneeHalliburton Energy Services, Inc.
InventorsB. Raghava Reddy, Krishna M. Ravi, Karen Luke, Rickey L. Morgan
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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 making a foamed well fluid that comprises a gas comprising the steps of:
A well treatment fluid that comprises a water component, a gelling agent, a proppant material, a gas generating chemical, and a delayed encapsulated activator.
A foamed well fluid comprising a proppant material and a gas, the gas being generated by a reaction of a gas generating chemical and a delayed encapsulated activator.
Dependencies are inferred from the claim text.