Wells – With electrical means – Electrical motor
Patent
1987-12-04
1989-08-01
Kisliuk, Bruce M.
Wells
With electrical means
Electrical motor
166 651, 166 665, 166 72, 439 11, 336DIG2, E21B 2300, E21B 3406, E21B 4312, E21B 4100
Patent
active
048526487
ABSTRACT:
There is disclosed a well installation having an electrically responsive device a substantial distance beneath the wellhead and apparatus for supplying electrical current to the device from a source of alternating or time varying current outside the wellhead, which apparatus includes an electrical connector comprising a first coil on the outer side and a second coil on the inner side of a non-magnetic portion of a pressure containing wall of the well, whereby the supply of varying current from the source to the first coil forms an inductive coupling between it and the second coil of the connector.
REFERENCES:
patent: 2370818 (1945-03-01), Silverman
patent: 2379800 (1945-07-01), Hare
patent: 2414719 (1947-01-01), Cloud
patent: 3187238 (1965-06-01), Wilson et al.
patent: 3550682 (1970-12-01), Fowler
patent: 3743989 (1973-07-01), Nicolas et al.
patent: 4407329 (1983-10-01), Huebsch et al.
patent: 4566534 (1986-01-01), Going, III
"Inductive Couplers in Underwater Power Distribution Networks-Improving Their Applicability" by L. Van Den Steen, published in Underwater Technology, vol. 12, No. 3, date unknown.
Akkerman Neil H.
Dewey Daniel O.
AVA International Corporation
Kisliuk Bruce M.
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