Downhole pump pulsation dampener

Details Downhole pump pulsation dampener Downhole pump pulsation dampener

1989-04-18

1990-06-26

Neuder, William P.

Wells

With below and above ground modification

Eduction pump or plunger in well

166106, 417540, E21B 4300

Patent

active

049363832

ABSTRACT:
A pulsation dampener for a downhole reciprocating pump system which is positioned at the lower end of the production tubing just above the barrel of the pump. The dampener has a perforated conduit on which an elastic sleeve is fitted to seal the perforations when in a relaxed position. A housing surrounds the sleeve and forms an annulus between the annulus and the housing which is precharged with gas.

REFERENCES:
patent: 1235112 (1917-07-01), Coberly
patent: 1292778 (1919-01-01), Holmes
patent: 1576606 (1926-03-01), Haskell
patent: 2215558 (1940-09-01), Miller
patent: 2359389 (1944-10-01), Saulsberry
patent: 2435179 (1948-01-01), McGovney
patent: 2664049 (1953-12-01), Coberly
patent: 2712831 (1955-07-01), Day
patent: 2734462 (1956-02-01), Schaefer
patent: 2746103 (1956-09-01), Mercier
patent: 3272145 (1966-09-01), Towner
patent: 3370544 (1968-02-01), Thorpe, Sr.
patent: 4628994 (1986-12-01), Towner et al.

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