Sulfomethylated lignosulfonates as additives in oil recovery pro

Details Sulfomethylated lignosulfonates as additives in oil recovery pro Sulfomethylated lignosulfonates as additives in oil recovery pro

1978-04-28

1979-10-30

Guynn, Herbert B.

Wells

Processes

Distinct, separate injection and producing wells

166274, 252 855D, E21B 4322

Patent

active

041724984

ABSTRACT:
A process for producing petroleum from subterranean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involves injecting via the injection well into the formation an aqueous solution of sulfomethylated lignosulfonate salt as a sacrificial agent to inhibit the deposition of surfactant and/or polymer on the reservoir matrix. The process may best be carried out by injecting the sulfomethylated lignosulfonates into the formation through the injection well mixed with either a polymer, a surfactant solution and/or a micellar dispersion. This mixture would then be followed by a drive fluid such as water to push the chemicals to the production well.

REFERENCES:
patent: 3384171 (1968-05-01), Parker
patent: 3469630 (1969-09-01), Hurd et al.
patent: 3476188 (1969-11-01), Harvey
patent: 3700031 (1972-10-01), Germer et al.
patent: 3797574 (1974-03-01), Feuerbacher et al.
patent: 4088640 (1978-05-01), Detroit

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