Foamed treatment fluids and associated methods

Details Foamed treatment fluids and associated methods Foamed treatment fluids and associated methods

2007-10-30

2007-10-30

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Placing fluid into the formation

C166S300000, C166S309000

Reexamination Certificate

active

11454236

ABSTRACT:
Methods of treating subterranean formations using foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising a plurality of alkali salts of alkyl ether sulfates wherein the alkyl group in each of the alkyl ether sulfates has in the range of from 4 carbon atoms to 10 carbon atoms, an alkyl amidopropyl hydroxysultaine or an alkyl amidopropyl betaine, and an alkyl amidopropyl dimethylamine oxide.

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Reidenbach et al.,Rheological Study of Foam Fracturing Using Nitrogen and Carbon Dioxide; SPE 12026-PA, SPE Production Engineering, Jan. 1986, vol. 1, pp. 31-41.

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