Wells – Processes – Distinct – separate injection and producing wells
Patent
1976-02-04
1978-02-07
Guynn, Herbert B.
Wells
Processes
Distinct, separate injection and producing wells
166274, 166275, 252 855D, E21B 4322
Patent
active
040721922
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 lignite salt as a sacrificial agent to inhibit the deposition of surfactant and/or polymer on the reservoir matrix. The process may be carried out by first injecting the sulfomethylated lignite salt into the formation through the injection well and following them with either a polymer or a surfactant solution which may also contain sulfomethylated lignite salt. The polymer and/or surfactant would then be followed by a drive fluid such as water to push the chemicals to the production well.
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patent: 3797574 (1974-03-01), Feuerbacher et al.
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Kudchadker Mohan V.
Weiss Walter J.
Guynn Herbert B.
Priem Kenneth R.
Ries Carl G.
Texaco Inc.
Whaley Thomas H.
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