Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Patent
1987-11-23
1988-12-13
Massie, IV, Jerome W.
Wells
With heating, refrigerating or heat insulating means
Electrical heater in well
166304, 166902, 166 62, 219277, E21B 3600, E21B 4300
Patent
active
047903759
ABSTRACT:
Heating systems for mineral wells (e.g. oil wells) employ electrical power sources, sometimes operating at relatively high frequencies, that are connected to the well casing and production tubing so as to provide a coaxial line electrical heater projecting down into the well. The heating pattern of the coaxial line is effectively controlled so that most of the power is dissipated as heat, primarily in the tubing, above a depth D above which paraffins or other condensible constituents would tend to condense or otherwise impair the flow of mineral fluid up through the production tubing. The applied electrical power is controlled so that the fluid is kept approximately at or only somewhat above the flow impairment temperature for constituents of the fluid. In some embodiments the system is extended to provide heating of a portion of the deposit formation adjacent to the well.
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Bridges Jack E.
Spencer Homer L.
Sresty Guggilam C.
Young Vincent R.
Massie IV Jerome W.
Neuder William P.
ORS Development Corporation
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