Wells – Processes – Distinct – separate injection and producing wells
Patent
1976-11-04
1978-09-12
Novosad, Stephen J.
Wells
Processes
Distinct, separate injection and producing wells
166273, 166305R, E21B 4322
Patent
active
041130138
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 into the formation via the injection well asphaltenes as sacrificial agents to inhibit the deposition of chemical recovery agents such as surfactant on the reservoir matrix. Normally the process would be carried out by first injecting the asphaltenes into the formation through the injection well and following them with a chemical recovery agent. The chemical recovery agent would then be followed by a drive fluid such as water to push the materials to the production well.
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Kumar Atul
Ledoux Will A.
Schoen William
Novosad Stephen J.
Priem Kenneth R.
Ries Carl G.
Suchfield George A.
Texaco Inc.
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