Wells – Processes – Distinct – separate injection and producing wells
Patent
1978-10-02
1980-04-08
Guynn, Herbert B.
Wells
Processes
Distinct, separate injection and producing wells
166274, 166275, 252 855D, E21B 4322
Patent
active
041967771
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 oxidized 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 oxidized 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.
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patent: 3478823 (1969-11-01), Murphy
patent: 3532166 (1970-10-01), Williams
patent: 3700031 (1972-10-01), Germer et al.
patent: 3777817 (1973-12-01), Feuerbacher et al.
patent: 3797574 (1974-03-01), Feuerbacher et al.
patent: 4133385 (1979-01-01), Kalfoglou
Guynn Herbert B.
Kulason Robert A.
Priem Kenneth R.
Ries Carl G.
Texaco Inc.
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