Back to results
US 3,939,912 AGranted
Method for reducing the production of water from oil wells
AssigneeContinental Oil Company
InventorsDerry D. Sparlin, Harry A. Wahl
Life of this patent
Estimating the term…
Abstract
A method for reducing the production of water from oil wells by injecting into the oil wells a viscous oil containing from about 0.01 to about 10 weight percent of a coupling agent in an amount sufficient to saturate the subterranean formations penetrated by the wellbore radially for distance up to about 100 feet.
Claims8
A method for reducing the production of water from subterranean formations penetrated by a wellbore, said method consisting essentially of:
- a. mixing an oil having a viscosity from about 50 to about 10,000 cp at the pressure and temperature of said subterranean formations with a coupling agent selected from the group consisting of phenolic and furan resins and combinations thereof to produce a mixture containing from about 0.01 to about 10 weight percent coupling agent, said resins being liquid at the pressure and temperature of said subterranean formations;
- and,
- b. injecting said mixture into said formation in an amount sufficient to saturate said subterranean formations radially from said wellbore for a distance up to about 100 feet.
A method for reducing the water permeability of subterranean formations penetrated by a wellbore, said method consisting of:
- a. mixing an oil having a viscosity from about 50 to about 10,000 cp at the pressure and temperature of said subterranean formations with a coupling agent selected from the group consisting of phenolic and furan resins and combinations thereof to produce a mixture containing from about 0.01 to about 10 weight percent coupling agent, said resins being liquid at the pressure and temperature of said subterranean formations;
- and,
- b. injecting said mixture into said formation in an amount sufficient to saturate said subterranean formations radially from said wellbore for a distance up to about 100 feet.
Dependencies are inferred from the claim text.