Wells – With eduction pump or plunger – With packer or plug
Patent
1980-08-01
1982-10-05
Leppink, James A.
Wells
With eduction pump or plunger
With packer or plug
166120, 166133, 166217, E21B 33128
Patent
active
043523943
ABSTRACT:
A packer assembly for a cable-suspended well pumping system comprises a cylindrical housing carrying an external sealing sleeve of resilient material and a series of axially movable radially expandable slips for gripping a well casing. The slips are operated by liquid pressure developed upon initiation of a downwell pumping operation, by movement of a tubular piston within the housing which is connected to the slips through openings in the housing wall. Further, the slips abut a collar attached to one end of the sealing sleeve so that axial movement of the slips also causes the sealing sleeve to be axially compressed and radially expanded into engagement with the well casing. After pumping is terminated, the slips and seal can be disengaged from the well casing simply by raising the assembly.
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Leppink James A.
TRW Inc.
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