Electric heating – Metal heating – Of cylinders
Patent
1977-09-30
1980-04-01
Reynolds, Bruce A.
Electric heating
Metal heating
Of cylinders
219 1057, 219 1065, 166248, 299 6, H05B 904, E21B 4324
Patent
active
041963296
ABSTRACT:
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 megahertz 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 concentration at the end of the line.
REFERENCES:
patent: 2757738 (1956-08-01), Ritchey
patent: 3103975 (1963-09-01), Hanson
patent: 3948319 (1976-04-01), Pritchett
deBettencourt Joseph T.
Rowland Howard J.
Arnold H. W.
Bartlett M. D.
Leung Philip H.
Pannone J. D.
Raytheon Company
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