F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 9/115 (2006.01) E21B 43/12 (2006.01) F04B 7/00 (2006.01) F04B 47/08 (2006.01)
Patent
CA 2709048
A downhole pump for use in oil and gas wells to pump target fluids or substances therefrom, and a method for using same, is provided. The pump can include a cylindrical housing having a pair of opposing pistons disposed therein, the pistons connected together by a connecting rod wherein the pistons can reciprocate within the housing in unison as a piston assembly. Each piston separates an outer compression chamber from an inner chamber, both of which are disposed at opposing ends of the housing, the compression chambers configured to draw in and expel target fluids through separate inlet and outlet check valves. Power fluid, such as pressurized gas or fluid, is used to reciprocate the piston assembly within the housing thereby causing target fluids to be pumped through the compression chambers. A reversing sleeve is disposed about the connecting rod between the pistons, thereby separating the inner chambers, to control the flow of power fluid to the piston assembly through ports disposed in the housing sidewall thereby enabling movement of the piston assembly in the housing.
Depiak Adam
Depiak Karol
Haugen J. Jay
Select Lift Inc.
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