Wells – Processes – Separating material entering well
Patent
1979-12-10
1981-07-07
Novosad, Stephen J.
Wells
Processes
Separating material entering well
166273, E21B 4324
Patent
active
042769337
ABSTRACT:
An improved surfactant waterflood method for the recovery of oil from a subterranean reservoir utilizing an anionic surface-active agent wherein an aqueous postflush slug containing a nonionic solubilizer is employed to minimize retention of the surface-active agent in the reservoir matrix.
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Kalfoglou George
Kudchadker Mohan V.
Whittington Lawrence E.
Bauer Charles L.
Kulason Robert A.
Novosad Stephen J.
Ries Carl G.
Suchfield George A.
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