Downhole pumping system for recovering liquids and gas

Details Downhole pumping system for recovering liquids and gas Downhole pumping system for recovering liquids and gas

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.

REFERENCES:
patent: 2270666 (1942-01-01), Arutunoff
patent: 2658455 (1953-11-01), Seinfeld
patent: 3238879 (1966-03-01), Shallenberg
patent: 3369492 (1968-02-01), Berman
patent: 4778341 (1988-10-01), Corradini et al.
patent: 4830584 (1989-05-01), Mohn
patent: 4901413 (1990-02-01), Cotherman et al.
patent: 4913630 (1990-04-01), Cotherman et al.

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