Method for fracturing subterranean formations

Details Method for fracturing subterranean formations Method for fracturing subterranean formations

1985-08-12

1986-11-11

Guynn, Herbert B.

Compositions

Leather or fur treating

166308, E21B 4326

Patent

active

046221557

ABSTRACT:
The present invention provides a method of forming an easily pumpable gelled fluid which is capable of yielding an apparent viscosity of in excess of about 100 centipoise at a shear rate of 40 sec.sup.-1 for in excess of about six hours at a temperature in excess of 250.degree. F. An initial gel is formed by adding a selected basic aluminum compound and a phosphoric acid ester to a hydrocarbon liquid. This mixture is aged to form the initial gel and an additional quantity of a basic aluminum compound then is admixed with the initial gel. The crosslinked gel then is introduced into a subterranean formation at a rate and pressure sufficient to fracture the formation.

REFERENCES:
patent: 3757864 (1973-09-01), Crawford et al.
patent: 4174283 (1979-11-01), Griffin
patent: 4200539 (1980-04-01), Burnham et al.
patent: 4200540 (1980-04-01), Burnham
patent: 4316810 (1982-02-01), Burnham

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