Wells – Processes – Distinct – separate injection and producing wells
Patent
1982-06-25
1984-08-14
Novosad, Stephen J.
Wells
Processes
Distinct, separate injection and producing wells
166274, E21B 4324
Patent
active
044651376
ABSTRACT:
The present invention is a sequenced method of increasing the injectivity of oil bearing formations and increasing hydrocarbon recovery. The method of the invention is initiated by injecting an aqueous fluid at an ambient temperature into the formation through an injection well while concurrently recovering fluid at a production well. The first injection stage is followed by the injection of fluid of gradually increasing temperature until a temperature of about 75.degree.-100.degree. C. is reached. Finally, steam is injected into the formation.
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Hall Wilbur L.
Sustek, Jr. Alvin J.
Teasdale Thomas S.
Wiechel John F.
Del Signore Mark J.
Delhommer Harold J.
Novosad Stephen J.
Park Jack H.
Ries Carl G.
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