E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/27
E21B 43/18 (2006.01) F04B 47/08 (2006.01)
Patent
CA 1142081
DOWNHOLE DOUBLE ACTING PUMP Abstract A down hole pump operated by gas in which the fluid in the production conduit may first be gas lifted. The exhaust gas from the pump aerates the well fluids in the production conduit. The pump is controlled by a valve whose operation is in turn controlled by a pilot valve shiftable in response to operation of the pump.
371796
Otis Engineering Corporation
Smart & Biggar
LandOfFree
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