Method and apparatus for pumping wells
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United States of America Patent
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May 4, 1993
Grant Date -
N/A
app pub date -
Sep 17, 1990
filing date -
Sep 17, 1990
priority date (Note) -
Expired
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Abstract
A method and apparatus for producing wells in which the tubing and casing are used as electrical conduits for a centrifugal pump in the well and single phase A. C. or D. C. current is supplied to the well and converted to three phase current at the pump motor.
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