Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Patent
1982-05-28
1984-08-21
Novosad, Stephen J.
Wells
With heating, refrigerating or heat insulating means
Electrical heater in well
166 65R, 166248, E21B 4324
Patent
active
044664842
ABSTRACT:
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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Anbah, "Application of Electrokenetic Phonomena in Civil Engineering and Petroleum Engineering," Feb. 1965.
Dang Hoang C.
Novosad Stephen J.
Syminex (Societe Anonyme)
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