Oil well electrical cable with gas conducting channel and vent

Details Oil well electrical cable with gas conducting channel and vent Oil well electrical cable with gas conducting channel and vent

1983-07-06

1985-08-20

Askin, Laramie E.

Electricity: conductors and insulators

With fluids or vacuum

With fluid-condition responsive and/or indicating means

174102SP, H01B 718

Patent

active

045366098

ABSTRACT:
An electrical cable especially useful in oil wells having a gas conducting channel beneath the outer sheath and a valved vent through the sheath to prevent explosive decompression. Gases entrained in the cable's insulation can exit from the insulation into the channel, move longitudinally of the cable along the channel and exit from the sheath via the vent. The cable comprises an insulated conductor, a low gas-permeable sheath surrounding the insulation, the gas conducting channel located between the insulation and the sheath, and the vent in the sheath and communicating with the channel. The channel can be formed of a plurality of filaments or fibers located closely adjacent one another to form a bundle. A plurality of bundles can be used, which can extend linearly or spirally along the insulation or in interwoven form.

REFERENCES:
patent: 3571486 (1971-03-01), Kennedy
patent: 3742363 (1973-06-01), Carle
patent: 4088830 (1978-05-01), Wargin et al.

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