Method and electrical device for promoting oil recovery

Details Method and electrical device for promoting oil recovery Method and electrical device for promoting oil recovery

E - Fixed Constructions

21

B

166/38

E21B 43/24 (2006.01) E21B 36/00 (2006.01)

Patent

CA 1175348

IN THE CANADIAN PATENT AND TRADEMARK OFFICE PATENT APPLICATION entitled : Method and electrical device for promoting oil recovery. Inventor : André KERMABON Applicant : Société Anonyme styled : SYMINEX. ABSTRACT OF THE DISCLOSURE The present invention relates to a method and device for promoting oil recovery. The device according to the invention for promoting the recovery of oil contained in a reservoir formation from a well equipped with a casing, comprises an anode which is placed at the bottom of the well, below said reservoir formation, in an electro-conductive liquid, and which is connected to the positive terminal of a direct or pulsed source of unidirectional voltage. Said casing is connected to the negative terminal of said source. The method consists in applying a unidirectional voltage for periods varying between several days and several months and alternating with OFF- period (when no voltage is applied).

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