Fracturing fluid

Details Fracturing fluid Fracturing fluid

1974-04-08

1976-02-17

Novosad, Stephen J.

Wells

Processes

Placing fluid into the formation

252855R, E21B 4326

Patent

active

039385949

ABSTRACT:
Improved fracturing of subterranean formations with water-based fracturing fluids is obtained by incorporating into an aqueous fracturing fluid (1) a water-soluble, high molecular weight polymer that will crosslink in the presence of chromic ion and (2) controlled amounts of chromic ion to crosslink the polymer to form a gel of desired viscosity. Useful polymers include partially hydrolyzed polyacrylamide and copolymers of acrylamide and sodium acrylate.

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