Wells – Processes – Producing the well
Patent
1987-01-05
1989-05-09
Neuder, William P.
Wells
Processes
Producing the well
1661055, 415 67, 415 68, 415 72, 415201, 417406, E21B 4312
Patent
active
048280364
ABSTRACT:
A fluid driven downhole apparatus is disclosed for pumping a fluid, such as crude oil, from a well in which a housing contains a twin rotor screw type positive displacement motor and a twin rotor screw type positive displacement pump and the screw rotors of said pump and motor are mounted on a pair of common parallel shafts.
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Neuder William P.
Shell Oil Company
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