Well pump device
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United States of America Patent
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-
Feb 22, 2005
Grant Date -
Jan 15, 2004
app pub date -
Jan 3, 2003
filing date -
May 3, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A well pump device, especially for use in connection with the recovery of hydrocarbons, wherein the pump is carried to a predetermined position within a well pipe. The pump is provided with an external seal which is arranged to prevent fluid from flowing from the pressure side of the pump past the pump to the suction side thereof.
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