Low fluid loss foam

Compositions – Leather or fur treating

Patent

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Details

166282, 166283, E21B 4326, E21B 4327

Patent

active

042172314

ABSTRACT:
An improved method for reducing fluid loss during high pressure hydraulic fracturing of well formations using an aqueous foam involving adding to the foam from about 0.0005 to 0.5% by weight of an additive selected from the group consisting of a C.sub.5 to C.sub.10 unsubstituted monocarboxylic aliphatic acid, a C.sub.5 to C.sub.10 unsubstituted aliphatic alcohol, malonic acid, lower n-alkyl diesters of malonic acid and their mixtures. The new additives are shown to be as effective in reducing fluid loss during fracturing as the commercial practice employing hydroxy ethyl cellulose at a fraction of the cost of hydroxy ethyl cellulose without depositing polymer within the formation.

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King, "Factors Affecting Dynamic Fluid Leakoff with Foam Fracturing Fluids," SPE paper 6817, presented at the SPE meeting held in Denver, Colorado, Oct. 9-12, 1977.

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