Method and apparatus for pumping liquid from wells

Details Method and apparatus for pumping liquid from wells Method and apparatus for pumping liquid from wells

E - Fixed Constructions

21

B

E21B 43/12 (2006.01)

Patent

CA 2579901

An improved, unattended, liquid pumping device for oil and gas wells featuring a bellows controlled flow valve that opens and closes at preset pressures. The liquid pumping device may operate within a liner suspended into the well. The liquid pumping device may also include sealing elements configured to deform radially to allow the pumping device to pass through restrictions in the well or liner.

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