Process for fracturing well formations using aqueous gels

Details Process for fracturing well formations using aqueous gels Process for fracturing well formations using aqueous gels

1977-06-20

1979-01-30

Guynn, Herbert B.

Compositions

Leather or fur treating

166283, 166295, 166308, 252316, E21B 4326

Patent

active

041371828

ABSTRACT:
A method and composition for fracturing a subterranean formation which comprises (1) contacting a subterranean formation with an aqueous liquid comprising a propping agent and a composition containing water, acrylamide:methacrylate copolymer cross-linked with chromium (III) ion, in presence of carbonate ion, oxalate ion, and, optionally, persulfate ion, (2) applying pressure to said liquid, (3) maintaining said pressure to fracture said formation, (4) and said gel breaking within 24 hours of gel formation.

REFERENCES:
patent: 3114651 (1963-12-01), Gentile
patent: 3727689 (1973-04-01), Clampitt
patent: 3816151 (1974-06-01), Podlas
patent: 3938594 (1976-02-01), Rhudy et al.
patent: 4021355 (1977-05-01), Holtmyer et al.

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