Wells – Processes – Distinct – separate injection and producing wells
Patent
1977-06-20
1979-01-09
Guynn, Herbert B.
Wells
Processes
Distinct, separate injection and producing wells
166274, 166275, 252 855D, E21B 4322
Patent
active
041333853
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.
REFERENCES:
patent: 3009874 (1961-11-01), Chisholm
patent: 3384171 (1968-05-01), Parker
patent: 3469630 (1969-09-01), Hurd et al.
patent: 3476188 (1969-11-01), Harvey
patent: 3532166 (1970-10-01), Williams
patent: 3700031 (1972-10-01), Germer et al.
patent: 3797574 (1974-03-01), Feuerbacher et al.
Rogers, Composition and Properties of Oil Well Drilling Fluids, Third Edition, Pub. 1963, pp. 262, 263, 264 and 377.
Guynn Herbert B.
Priem Kenneth R.
Ries Carl G.
Texaco Inc.
Whaley Thomas H.
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