Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1987-03-27
1988-05-24
Novosad, Stephen J.
Wells
With below and above ground modification
Eduction pump or plunger in well
166109, 417402, E21B 4300
Patent
active
047459697
ABSTRACT:
A hydraulic jack system for operating well bottom pumping units via a sucker rod string and polish rod that comprises a jack unit that is designed for mounting by being suspended fully within a well casing with a seal being created between the periphery of the jack unit and the interior of the well casing. The jack unit has a hollow piston-cylinder unit through which a polish rod is able to be inserted and withdrawn, to the top of which a top end of the polish rod is attachable and to the bottom of which a top end of a well fluid delivery tube is connectable. The construction of the unit enables a polish rod or sucker rod to be inserted and withdrawn through the jack unit without requiring pulling of the unit, and because all of the mechanical components of the unit are fully housed within the well casing, the presence of installed jack units in adjacent wells in closely clustered well sites, as are used in urban and other high land cost areas, will not interfere with the ability of a pulling rig to obtain access to the well being serviced.
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Neuder William P.
Novosad Stephen J.
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