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U.S. Department of Energy
Office of Scientific and Technical Information

Fracturing fluid

Patent ·
OSTI ID:7356283
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. (auth)
Assignee:
Marathon Oil Co.
Patent Number(s):
US 3938594
OSTI ID:
7356283
Country of Publication:
United States
Language:
English