Well piston pump reciprocating by rod elongation

Details Well piston pump reciprocating by rod elongation Well piston pump reciprocating by rod elongation

F - Mech Eng,Light,Heat,Weapons

04

B

103/41

F04B 47/00 (2006.01)

Patent

CA 1039109

PUMPING BY WIRE ELONGATION ABSTRACT OF THE DISCLOSURE Pumping in oil wells and like application is carried out in a noiseless manner with efficient utilization of energy by raising the plunger or piston in a subsurface pump piston with a long metal rod or cable capable of undergoing memory shape change as a function of a martensitic transformation when worked by application of stress, preferably by gravity through an attached weight, while cold to elongate itself and, upon application of heat thereto, reversing the transformation and contracting in length to raise the piston and associated equip- ment plus fluid load.

271151

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