Gas lift mandrel

Details Gas lift mandrel Gas lift mandrel

1983-01-10

1984-11-06

Novosad, Stephen J.

Wells

Means for guiding insertable element laterally of well axis

E21B 2303

Patent

active

044806868

ABSTRACT:
A gas lift mandrel is provided for installation in a string of production tubing extending into a well casing for gas energized production of petroleum products. The mandrel incorporates a tubular body having offset extremities for connection to tubing sections and defining a well aperture in its side wall. An inner tubular sleeve is located within the tubular body and defines an elongated opening within which is received a valve receptacle and valve guard in coextensive relation. The valve receptacle incorporates an external weld boss which is located within the weld aperture of the body and connected to the body by welding. The inner sleeve varies in thickness from a maximum thickness on the side of the aperture to a minimum thickness on the side opposite the weld aperture.

REFERENCES:
patent: 2824525 (1958-02-01), McGowen
patent: 3994339 (1976-11-01), Goode et al.
patent: 4106563 (1978-08-01), Gatlin et al.
patent: 4197909 (1980-04-01), Terral
patent: 4201265 (1980-05-01), Thomason et al.

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