Method and apparatus for pumping subterranean fluids

Details Method and apparatus for pumping subterranean fluids Method and apparatus for pumping subterranean fluids

E - Fixed Constructions

21

B

166/27, 103/40

E21B 43/18 (2006.01) E21B 19/22 (2006.01) E21B 43/00 (2006.01) F04B 47/06 (2006.01)

Patent

CA 1175345

ABSTRACT OF THE DISCLOSURE An apparatus and method for pumping oil or other fluids from the earth is disclosed as using a submersible pump which is suspended in a hole drilled into the earth by means of a flexible cable. Encased in a flexible sheath with the cable are a power cable for the pump and a flexible hose to carry the oil from the pump to the surface of the earth. Control and signal wires may also be encased in the sheath for connec- tion to transducers mounted on the pump. The pump may be easily inserted into or removed from the hole by using a reeling mechanism on the surface of the earth. The pump itself may comprise a submersible motor connected to a rotary to linear motion transducer that causes a pump barrel to reciprocate. The pump barrel moves over a stationary pump plunger, and there are ball check valves in both the barrel and plunger to control the entrance and exit of oil.

398797

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