Apparatus and method for in situ controlled heat processing of h

Details Apparatus and method for in situ controlled heat processing of h Apparatus and method for in situ controlled heat processing of h

1982-01-29

1984-05-22

Suchfield, George A.

Wells

Processes

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

166 60, 166245, E21B 4324

Patent

active

044495854

ABSTRACT:
A system and method for the controlled in situ heat processing of hydrocarbonaceous earth formations involves the application of electromagnetic energy at a selected frequency or at selected frequencies to a waveguide structure formed by electrodes bounding a particular volume of hydrocarbonaceous material. Terminating one end of the structure with different impedances at different times produces electric field standing waves of different respective phase at that end at a selected frequency. Two standing waves substantially 90.degree. out of phase in formations having relatively uniform dielectric properties result in substantially uniform application of heating power if the product of the amplitude-squared of the electric field standing wave and dwell time is substantially the same in each of the two modes. Feeding the line at both ends provides partial offset for attenuation. Various desired controlled heating patterns other than uniform may be effected by utilizing different dwell times or applied fields. Different frequencies provide further flexibility, particularly where the line is terminated differently at the respective frequencies. Energy at the different frequencies may be applied simultaneously.

REFERENCES:
patent: Re30738 (1981-09-01), Bridges et al.
patent: 3948319 (1976-04-01), Pritchett
patent: 4135579 (1979-01-01), Rowland et al.
patent: 4140179 (1979-02-01), Kasevich et al.
patent: 4140180 (1979-02-01), Bridges et al.
patent: 4144935 (1979-03-01), Bridges et al.
patent: 4193451 (1980-03-01), Dauphine

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