Sand recovery unit

Details Sand recovery unit Sand recovery unit

1998-09-08

2000-05-09

Bagnell, David

Wells

With eduction pump or plunger

Having sediment trap or deflector

166227, 166311, E21B 3700, E21B 2100

Patent

active

060590300

ABSTRACT:
A sand recovery unit for removing sand and other clogging debris from a producing well formation including a cylinder tube component housing an interior filter located across an intake; a DC motor coupled to a pumping mechanism having an intake covered by the filter and discharge orifices along the side wall of the tube; and a one-way flap valve provided in-line with the interior filter in a manner such that the inline flap valve is positioned on an opposite side of the filtering screen from the pumping mechanism. A coupling is also provided for attachment to a drill string and a chargeable ni-cad battery supply is provided for powering the pumping mechanism.

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patent: 4018283 (1977-04-01), Watkins
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patent: 5095976 (1992-03-01), Appleton
patent: 5139089 (1992-08-01), Wacker
patent: 5287923 (1994-02-01), Cornette et al.

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