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

Consolidation of subterranean formations

Patent ·
OSTI ID:5720167
A method for consolidating incompetent clay-containing earth formations uses a resin-forming material that is injected into the formation and then hardened by the action of a curing agent or catalyst subject to adsorption by the clay. Adsorption of the catalyst is inhibited by first contacting the formation with a cationic surfactant prior to injection of the resin-forming material. The formation is preferably contacted with an amount of cationic surfactant sufficient to satisfy the ion-exchange capacity of the clay. (24 claims)
Assignee:
Union Oil Co. California
Patent Number(s):
US 3419072
OSTI ID:
5720167
Country of Publication:
United States
Language:
English