Wells – Processes – Placing fluid into the formation
Patent
1980-05-27
1981-07-21
Novosad, Stephen J.
Wells
Processes
Placing fluid into the formation
166252, 166271, 166273, E21B 4322, E21B 4327
Patent
active
042793050
ABSTRACT:
The injectivity of an oil-containing reservoir is increased by injecting successive portions of a solution or slightly turbid dispersion of reservoir-tailored amounts of polyalkoxyalcohol sulfate surfactant and lower alkanol in highly saline aqueous liquid and a reservoir acidizing solution.
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Hill Harold J.
Knapp Randolph H.
Lawson Jimmie B.
Reisberg Joseph
Thigpen David R.
Novosad Stephen J.
Shell Oil Company
Suchfield George A.
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