Active intake pressure control of downhole pump assemblies

Details Active intake pressure control of downhole pump assemblies Active intake pressure control of downhole pump assemblies

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 17/04 (2006.01) E21B 21/10 (2006.01) F04C 28/24 (2006.01) F16K 3/26 (2006.01)

Patent

CA 2625543

Progressive cavity pump assemblies including one or more mechanisms adapted to regulate intake pressure of the main pump between a minimum intake pressure and a maximum intake pressure. In one embodiment, the mechanism is a sealing member configured to open at a threshold pressure to discharge wellbore fluid and close after falling below the threshold pressure. In an alternative embodiment, the mechanism may be a regulator assembly that adjusts the volume of output from the charge pump to the interconnect according to the pressure in the interconnect.

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