Wells – With eduction pump or plunger – Receptacles
Patent
1979-11-05
1981-09-29
Leppink, James A.
Wells
With eduction pump or plunger
Receptacles
166169, E21B 2100, E21B 4312
Patent
active
042917638
ABSTRACT:
A dispenser for well treating chemicals for pumping oil wells, for attachment to the bottom end of the tubing string, comprises a long cylindrical container, closed at top and bottom, about the same diameter as the tubing and rigidly attachable to the bottom end of the tubing. The bottom end of the chamber is preferably pointed, with at least one opening in the bottom end. The chamber is filled with chunks of solid chemical, of a nature normally used for treating wells. In the normal pumping action, the weight of the well fluid filling the tubing to the surface is supported by the sucker rods during that part of the pumping cycle when the rods are moving up. When the rods are moving down, the weight is carried by the tubing. This varying load on the tubing causes it to lengthen under load, and shorten, so that the bottom end of the tubing raises and lowers through a range of a foot or more. This sloshing of the tubing up and down in the well fluid (and the dispenser with it) causes water to be alternately injected into and withdrawn from the bottom openings, and thus dissolving chemical as it moves in and out.
REFERENCES:
patent: 337496 (1986-03-01), Hodson
patent: 642012 (1900-01-01), Sham
patent: 1389007 (1921-08-01), Norbye
patent: 2859827 (1958-11-01), Eklins et al.
patent: 2891622 (1959-06-01), Patterson et al.
patent: 3187567 (1965-06-01), O'Brien et al.
patent: 4119150 (1978-10-01), Froelich
Leppink James A.
Silverman Daniel
Suchfield George A.
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