Wireline retrievable oilwell pumping system

Details Wireline retrievable oilwell pumping system Wireline retrievable oilwell pumping system

1998-02-12

2000-12-05

Freay, Charles G.

Pumps

Processes

417360, 417390, 417415, 165119, 310 87, F04B 1700

Patent

active

061557927

ABSTRACT:
An apparatus for pumping fluids in a wellbore from a subterranean formation. The apparatus includes a tubular housing which is capable of being suspended from its associated upper end in a well bore or hole that communicates with a subterranean formation or oil reservoir. The tubular housing has at least one port or opening where through fluids (e.g. water, oil etc.) pass from the well bore. A pump assembly is contained within the tubular housing such as to be supported thereby. A rotating rod assembly is also contained within the tubular housing and is coupled to the pump assembly for operating the same. A gear assembly is coupled to the rotating rod assembly, and a motor assembly is coupled to the gear assembly while being dependedly attached to the tubular housing. The apparatus additionally includes a filter assembly coupled to the motor assembly.

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patent: 5871051 (1999-02-01), Mann
patent: 5954483 (1999-09-01), Tetzlaff

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