Downhole pump

Details Downhole pump Downhole pump

2011-04-19

2011-04-19

Kramer, Devon C (Department: 3746)

Pumps

Expansible chamber type

Fluid serially moved to opposite side of pumping member

C417S555200, C417S056000, C417S058000, C417S552000, C417S904000

Reexamination Certificate

active

07927083

ABSTRACT:
An apparatus and method for pumping from a well. A pump includes a piston assembly reciprocably engaged in a cylinder assembly. Pressure applied to a column of fluid above the pump causes a pump chamber to fill with fluid. A spring mechanism coupled to an anchor point above the piston assembly provides upward force on the piston assembly. Alternate cycles of the application and release of pressure result in the pumping of a fluid.

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patent: 1203749 (1986-04-01), None

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