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

Gelled acidic well treating composition and process

Patent ·
OSTI ID:6303357
Gelled acidic compositions suitable for either matrix-acidizing or fracture-acidizing of subterranean formations comprising water , a water-dispersible polymer selected from cellulose ethers and polymers of acrylamides, an acid, an aldehyde, and a phenolic compound capable of causing gelation of an aqueous dispersion of the polymer, acid, aldehyde, and phenolic compound are provided. In another embodiment, guar gum, polyvinylpyrrolidone and biopolysaccharides can also be used as the polymeric component in said compositions.
Assignee:
Phillips Petroleum Co
Patent Number(s):
US 4244826
OSTI ID:
6303357
Country of Publication:
United States
Language:
English