Pumps – One fluid pumped by contact or entrainment with another – Jet pump with motive fluid generating pump
Patent
1979-05-17
1981-10-13
Croyle, Carlton R.
Pumps
One fluid pumped by contact or entrainment with another
Jet pump with motive fluid generating pump
415168, 417 89, 417160, 417424, F04B 2314
Patent
active
042945739
ABSTRACT:
A petroleum well has a plurality of centrifugal pump stages, a jet pump stage, and an electrical drive motor. A recirculated portion of the output from high pressure stages of the centrifugal pump provides power fluid for the jet pump, and the jet pump aspirates fluid from lower pressure centrifugal pump stages. The balance of the output of the high pressure stages goes to the surface as production. The output of the jet pump supplies the high pressure stages. A centrifugal cleaner upstream of the power fluid inlet for the jet pump cleans that stream of particulates. The overall flow rate through the centrifugal stages exceeds the production rate of the pump by the amount of power fluid for the jet pump. The jet pump caps the assembly and can be separately removed for servicing and adapting the pump to the flow requirements of the well.
REFERENCES:
patent: 2297185 (1942-09-01), Hollander et al.
patent: 2603157 (1952-07-01), Conery
patent: 2845028 (1958-07-01), Nash et al.
patent: 2853013 (1958-09-01), Lung
patent: 3362155 (1968-01-01), Driscoll
patent: 3736072 (1973-05-01), Turner et al.
Erickson John W.
Petrie Harold L.
Croyle Carlton R.
Kobe Inc.
Look Edward
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