Process for water injectivity improvement treatment of water inj

Details Process for water injectivity improvement treatment of water inj Process for water injectivity improvement treatment of water inj

1986-08-15

1987-09-01

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166273, 1663051, 252 8554, E21B 4322

Patent

active

046902171

ABSTRACT:
A method for improving the injectivity of water injection wells in those formations with a low permeability to water as compared to the formation's absolute permeability by the removal of residual oil from the formation pore spaces in the near injection wellbore area through the injection of an aqueous fluid containing an effective amount of surface-active agent. The surface-active agent has the general formula

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