Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1995-07-07
1997-06-10
Neuder, William P.
Wells
With below and above ground modification
Eduction pump or plunger in well
166105, 417554, F04B 5300, F04B 5310
Patent
active
056366876
ABSTRACT:
In a well using a lift pump operated by a tension string from the surface, the down stroke of the pump is accelerated by providing a plunger element secured to the pump operating string. The plunger has an upper end exposed to the high hydrostatic pressure in the tubing string above the pump, and a lower end exposed to the substantially lower hydrostatic pressure in the well outside the tubing string. This produces a net downwards force on the pump operating string allowing a higher pump speed and a higher volume delivery.
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Brochure: Hydraulic Recoil Pump--USS Oilwell (Division of United States Steel).
Battison Adrian D.
Neuder William P.
Otatco Inc.
Thrift Murray E.
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