Subterranean heaters

Details Subterranean heaters Subterranean heaters

1991-01-07

1991-11-19

Neuder, William P.

Wells

With heating, refrigerating or heat insulating means

Electrical heater in well

219415, 219417, E21B 3604

Patent

active

050658182

ABSTRACT:
An electrical resistance subterranean heater is provided which is cemented directly in a well borehole without a casing in the borehole within the zone to be heated. The absence of the casing results in an economical installation.

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