Title:
APPARATUS FOR HEATING AND RECOVERING UNDERGROUND OIL
United States Patent 3420301
US Patent References:
/0495936.html
- - 0495936

/0678813.html
- - 0678813

/0884424.html
- - 0884424

/1184200.html
- - 1184200

Electrically conductive article
- - 1774381


Inventors:
Riley, Orey L.
Metairie, John Mamoulides M.
Publication Date:
01/07/1969
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Assignee:
LOUISIANA HYDROLEC INC
Primary Class:
166/60
Other Classes:
392/301, 166/61, 392/488, 166/62
International Classes:
E21B36/00; E21B43/24; E21B43/16; H05B3/06; E21B43/24; H05B3/02
US Patent References:
2350429Electrohydrothermic oil-well processor
2525314Electric oil well tubing heater
2836699Instantaneous water heater
2954826Heated well production string
3213942Apparatus for eliminating paraffin from oil well tubing




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