Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Radial flow runner portion guides re-entry working fluid
Patent
1996-01-02
1997-05-13
Look, Edward K.
Rotary kinetic fluid motors or pumps
With means for re-entry of working fluid to blade set
Radial flow runner portion guides re-entry working fluid
415 583, 4151991, 415901, 416181, 416186R, 4174233, 4174242, F04D 2922
Patent
active
056286163
ABSTRACT:
A downhole pumping system for recovering liquids and gas, comprising a first centrifugal pump having internal features for mixing introduced gas into introduced liquids, and a second centrifugal pump having an intake in fluid communication with a discharge of the first centrifugal pump. In one prattled embodiment the internal features for mixing comprise improved impellers having a balance hole that extends through an upper surface of the impeller body into each of a plurality of internal flow chambers, and an additional passage in at least a plurality of the flow chambers. The additional passages cause some fluid to be recirculated in a manner that causes introduced gas to be mixed into the liquids, thereby increasing the pump's gas volume recovery ability.
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Camco International Inc.
Look Edward K.
Verdier Christopher
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