Electromagnetic reservoir heating with vertical well supply and

Details Electromagnetic reservoir heating with vertical well supply and Electromagnetic reservoir heating with vertical well supply and

1993-07-13

1994-08-23

Neuder, William P.

Wells

Processes

Electric current or electrical wave energy through earth for...

166 651, E21B 4324

Patent

active

053398980

ABSTRACT:
The invention involves combining a plurality of vertical wells, each having a power conditioning unit located on the surface and an electrode in electrical contact with the reservoir, with a horizontal well extending through the reservoir in spaced relation to the vertical wells. The liner and tubing of the horizontal well function as the common return means for the circuit. Low frequency current is supplied to flow between the vertical and horizontal wells at adequate levels so as to cause heating in the near-wellbore regions of all the wells. Oil is produced, at the same time as electrical heating, at enhanced rates as a result.

REFERENCES:
patent: 3874450 (1975-04-01), Kern
patent: 4412585 (1983-11-01), Boyck
patent: 4489782 (1984-12-01), Perkins
patent: 4545435 (1985-10-01), Bridges et al.
patent: 4567945 (1986-02-01), Segalman
patent: 4640353 (1987-02-01), Schuh
patent: 4729429 (1988-03-01), Wittrisch
patent: 5054551 (1991-10-01), Dyeksen
patent: 5236039 (1993-08-01), Edelstein et al.

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