Process for secondary oil recovery utilizing propoxylated ethoxy

Details Process for secondary oil recovery utilizing propoxylated ethoxy Process for secondary oil recovery utilizing propoxylated ethoxy

1989-02-01

1989-12-12

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

252 8554, E21B 4322

Patent

active

048861200

ABSTRACT:
A process for removing residual oil from the near wellbore area of a subterranean formation adjacent an injection well of a waterflood operation to improve water injectivity comprising injection through said well into said area seawater containing a surfactant having the formula:

REFERENCES:
patent: 4293428 (1981-10-01), Gale et al.
patent: 4620595 (1986-11-01), Schutt
patent: 4690217 (1987-09-01), Taggart et al.
patent: 4705110 (1987-11-01), Balzer
patent: 4722396 (1988-02-01), Balzer
patent: 4738894 (1988-04-01), Jones
patent: 4828032 (1989-05-01), Teletzke et al.

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