Foamed fracturing fluid

Details Foamed fracturing fluid Foamed fracturing fluid

1996-07-25

1999-11-23

Kelly, C. H.

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

507216, 507202, 507209, 507211, 166308, C09K 300, E21B 4317

Patent

active

059900520

ABSTRACT:
An aqueous foamed fracturing fluid composition and method for using the foamed fracturing fluid for fracturing subterranean formations that have been penetrated by a wellbore wherein the foamed fracturing fluid comprises: (a) a viscosifier which is preferably either hydrophobically modified guar or hydrophobically modified hydroxymethylcellulose; (b) a surfactant which is preferably alpha olefin sulfonate; and (c) the gas phase includes either nitrogen or carbon dioxide.

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"Recent Advances in Hydraulic Fracturing"; by Gidley, Holditch, Nierode, and Veatch; p. 198; Society of Petroleum Engineers, Henry L. Doherty Memorial Fund of AIME, Richardson, Texas 1989.
"Fracture Conductivity Impairment Removal"; by Norman, Hollenbeak, and Harris; SPE Paper No. 19732; presented Oct. 1989.
"A Comparison of Mixed Gas Foams with N.sub.2 and CO.sub.2 Foam Fracturing Fluids on a Flow Loop Viscometer"; by Harris; SPE Paper No. 20642; presented Sep. 1990.
"Application of Foam Fluids to Minimize Damage During Fracturing"; by Harris; SPE Paper No. 22394; presented Mar. 1992.
"Polymers in Aqueous Media Performance Through Association"; edited by J. Edward Glass; sponsored by Division of Polymeric Materials: Science & Engineering, American Chemical Society; ch. 18, pp. 343-364, 1989.

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