Well heater

Details Well heater Well heater

1986-05-23

1987-07-07

Novosad, Stephen J.

Wells

Processes

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

166 60, 166 651, 166302, E21B 3600

Patent

active

046780343

ABSTRACT:
The tubing of a cased petroleum well is heated for any purpose such as to prevent deposition of solids by coupling a microwave source to the well annulus at the surface and transmitting the waves down the annulus.
Special coupling means is provided to couple at the annulus to accommodate the arbitrary positions of naturally occurring microwaves in the annulus of the well.

REFERENCES:
patent: 3908763 (1975-09-01), Chupman
patent: 4140179 (1979-02-01), Kasevich et al.
patent: 4508168 (1985-04-01), Heeren
patent: 4524827 (1985-06-01), Bridges et al.
patent: 4538682 (1985-09-01), McManas et al.
patent: 4553592 (1985-11-01), Looney et al.

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