Wells – Processes – Electric current or electrical wave energy through earth for...
Patent
1977-09-30
1979-01-23
Novosad, Stephen J.
Wells
Processes
Electric current or electrical wave energy through earth for...
166308, 208 11R, E21B 4324, E21B 4326
Patent
active
041355792
ABSTRACT:
A method and apparatus for fracturing and/or heating subsurface formations wherein an alternating current electric field is produced in the frequency range between 100 kilohertz and 100 meghertz between electrodes spaced apart in the formation and a radio frequency generator supplying a voltage between said lines with suitable loading structures tuned to the frequency of the generator to resonate the electrodes as a parallel wire transmission line which is terminated in an open circuit and produces a standing wave having a voltage node at the end of the line.
REFERENCES:
patent: 2685930 (1954-08-01), Albaugh
patent: 2757738 (1956-08-01), Ritchey
patent: 3133592 (1964-05-01), Tomberlin
patent: 3208674 (1965-09-01), Bailey
patent: 3428125 (1969-02-01), Parker
patent: 3578080 (1971-05-01), Closmann
patent: 3718186 (1973-02-01), Brandon
patent: 3948319 (1976-04-01), Pritchett
patent: 3989107 (1976-11-01), Fisher et al.
deBettencourt Joseph T.
Rowland Howard J.
Arnold H. W.
Bartlett M. D.
Novosad Stephen J.
Pannone J. D.
Raytheon Company
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