High compression downhole pump

Details High compression downhole pump High compression downhole pump

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 47/02 (2006.01) F04B 53/10 (2006.01)

Patent

CA 2628190

A downhole pump has a barrel and a plunger. The barrel has a first one-way valve and the plunger has a second one-way valve. The plunger is of the box end type. The pump prevents or minimizes gas lock by achieving high compression in the compression chamber between the two valves. The second valve is located close to the bottom end of the plunger. In the second valve, the valve seat is in contact with the seat plug, which seat plug has a seal. Alternatively, the valve seat is incorporated into the seat plug, which seat plug also has a seal. The plunger lacks reliefs at the bottom end and thereby achieves tight tolerances with the barrel, further contributing to high compression.

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