Side pocket mandrel

Details Side pocket mandrel Side pocket mandrel

1985-10-18

1987-12-29

Leppink, James A.

Wells

Means for guiding insertable element laterally of well axis

417111, E21B 2303

Patent

active

047154411

ABSTRACT:
In accordance with an illustrative embodiment of the present invention, a side pocket mandrel includes a tubular main body having an internal bore, a seating section w4elded to one end of said main body and having a main bore and a laterally offset seating bore opening to the exterior thereof, the axis of said seating bore being inclined at a small angle toward the axis of said main bore, said seating bore having a polish section at the outer end thereof and a latch shoulder adjacent the inner end of said polish section, and a gas flow opening communicating said seating bore with said main bore at a location inwardly of said polish section. A tubular member having an orienting sleeve therein is welded to said seating section in alignment with said main bore, and a swage nipple is welded to the opposite end of said main body. All of said welds are transverse to provide a high strength and compact mandrel assembly.

REFERENCES:
patent: 2368407 (1945-01-01), Boynton
patent: 2988146 (1961-06-01), Fredd
patent: 3654949 (1972-04-01), McMurry
patent: 3741299 (1973-06-01), Terral
patent: 4105279 (1978-08-01), Glotin et al.
patent: 4416330 (1983-11-01), Merritt et al.
patent: 4440222 (1984-04-01), Pullin
patent: 4501323 (1985-02-01), Lively et al.
patent: 4524831 (1985-06-01), Pringle
patent: 4541482 (1985-09-01), Johnston

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