E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/27
E21B 43/18 (2006.01)
Patent
CA 1232195
Abstract of the Inventions Method and means to pump a well with a hydraulically-driven downhole pump (15) as powered by a hydraulic surface unit (1) are disclosed, including a downhole filter assembly (71) and a flowline mounted oil leach (27) for supplying makeup oil to the surface unit.
468611
Macrae & Co.
Watts John D.
LandOfFree
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