The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1980
Filed:
Aug. 13, 1979
Aleksy Sacuta, Edmonton, CA;
Alberta Research Council, Edmonton, CA;
Abstract
A process is provided for recovery of oil from an oil and water bearing formation wherein spaced injection and production wells penetrate the formation and a drive fluid is injected through the injection well into the formation. A unidirectional electrical potential gradient is maintained between anode means in the production well and cathode means in the injection well adjacent the formation. In this manner, water flow toward the production well is retarded to enhance recovery efficiency. The process is particularly applicable in heavy-oil-bearing formations. In this case the formation is first preheated and heated drive fluids injected to improve the oil mobility within the formation.