Wells – With eduction pump or plunger – Having sediment trap or deflector
Patent
1999-01-19
2000-11-14
Suchfield, George
Wells
With eduction pump or plunger
Having sediment trap or deflector
1661051, 166110, 4175552, E21B 3710, E21B 4300
Patent
active
061455903
ABSTRACT:
A sand removal apparatus for use with an oil pumping apparatus in which a first sand remover is attached between a valve rod and a plunger of the oil pumping apparatus and a second sand remover is attached to a bottom of the plunger within the working barrel of the oil pumping apparatus. The first sand remover has a body with an interior passageway extending longitudinally therethrough. The body has a first threaded end attached to the plunger cage associated with the valve rod of the oil pumping apparatus and a second threaded end attached to the plunger. A circumferential groove extends around the body between the ends. A wiper is positioned within the circumferential groove so as to have an edge extending outwardly of the groove so as to be in wiping contact with the working barrel. The second sand remover has a body with an interior passageway extending longitudinally therethrough and having a first threaded end attached to the bottom of the plunger. The body has a groove formed circumferentially therearound so as to receive a wiping member therein. The wiping member is an annular member having an edge extending outwardly of the circumferential groove so as to be in wiping contact with the working barrel.
REFERENCES:
patent: 1309738 (1919-07-01), Latta
patent: 4629402 (1986-12-01), Marshala
patent: 4661052 (1987-04-01), Ruhle
patent: 5360062 (1994-11-01), White
patent: 5505260 (1996-04-01), Anderson et al.
Harbison-Fischer Sub-Surface Pumps Brochure 1992-93, Condensed Catalog, pp. 1-8.
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