F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 47/06 (2006.01) E21B 43/12 (2006.01) F04B 53/10 (2006.01)
Patent
CA 2678560
A downhole motor and pump assembly for use in a tube which comprises a support means for suspending the assembly downhole, a housing capable of forming a seal against the inside surface of the tube to divide the tube into a region beneath the seal and a region above the seal, an electric motor, a power means to supply the electric motor, a hydraulic pump driven by the electric motor and having a high pressure output, a piston operated by a directional valve, where the high pressure output from the hydraulic pump is directed by the directional valve alternately above and below the piston so as to drive the piston in reciprocal motion, and a fluid pump driven by the piston for pumping well fluid from the region beneath the seal to the region above the seal.
Artificial Lift Company Limited
Gowling Lafleur Henderson Llp
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