Wells – Processes – Distinct – separate injection and producing wells
Patent
1989-04-21
1992-01-28
Lovering, Richard D.
Wells
Processes
Distinct, separate injection and producing wells
137 13, 166303, 1663051, 252 8554, E21B 4315, E21B 4324
Patent
active
050836137
ABSTRACT:
A process for producing bitumen employing a borehole that has been drilled into a subterranean hydrocarbon-bearing reservoir having a hydrocarbon. A void space is created at the bottom of the borehole. A bundle of spring-loaded guide tubes is inserted through the borehole and into the void space. Each guide tube is enclosed with a smaller diameter flexible tube that is connected to a source of an emulsifying composition comprising an aqueous phase and an emulsifying agent. The emulsifying agent comprises first and a second ethoxylated alkylphenol compounds wherein at least 1% by weight include more than 100 ethoxy groups. The emulsifying composition is released through the flexible tubes to form an oil-in-aqueous phase emulsion in the reservoir. The oil-in-aqueous emulsion is removed from the reservoir.
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Gregoli Armand A.
Hamshar John A.
Olah Andrew M.
Rimmer Daniel P.
Yildirim Erdal
Canadian Occidental Petroleum Ltd.
Carpenter John Wade
Lovering Richard D.
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