Heater utilizing copper-nickel alloy core

Details Heater utilizing copper-nickel alloy core Heater utilizing copper-nickel alloy core

1990-12-04

1991-10-22

Reynolds, Bruce A.

Electric resistance heating devices

Heating devices

Borehole type

219553, 219548, 166272, 166 60, 175 16, 420485, 338214, E21B 2300, H05B 340

Patent

active

050602870

ABSTRACT:
An electrical resistance heater is provided which utilizes a copper-nickel alloy heating cable. This metallurgy heating cable is significantly less prone to failure due to localized overheating because the alloy has a low temperature coefficient of resistance. Used as a well heater, the heating cable permits heating of long segments of subterranean earth formation with a power supply of 400 to 1200 volts.

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Harrison Alloys Inc. Product Bulletin, "Properties of Major Alloys", 4/91.

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