04662438 is referenced by 234 patents and cites 33 patents.

Method and apparatus for enhancing liquid hydrocarbon production through a single traditional producing borehole recognizing traditional producing well spacing from a slowly producing formation by use of non-uniform heating through interrelated electrode arrays surrounding the borehole. Heating the formation around the borehole through an interrelated electrode array designed for the formations geometry and geophysics favorably redistributes the pressure gradient throughout the formation for a substantial distance beyond the borehole permitting net energy effective production. One optimum electrode array may consist of ring electrodes or electrode segments so disposed as to electrically approximate a ring. Electrically conductive well bore casing in the formation may be used as an electrode. A return electrode of low impedance disposed close to the surface of the earth may be utilized.

Title
Method and apparatus for enhancing liquid hydrocarbon production from a single borehole in a slowly producing formation by non-uniform heating through optimized electrode arrays surrounding the borehole
Application Number
6/757018
Publication Number
4662438
Application Date
July 19, 1985
Publication Date
May 5, 1987
Inventor
Korada Umashankar
Wheaton
IL, US
Guggilam C Sresty
Burbank
IL, US
Allen Taflove
Wilmette
IL, US
Agent
Vaden Eickenroht Thompson & Boulware
Assignee
Uentech Corporation
OK, US
IPC
E21B 43/30
E21B 43/24
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