Self-discriminating side pocket mandrel and method of manufactur

Details Self-discriminating side pocket mandrel and method of manufactur Self-discriminating side pocket mandrel and method of manufactur

1979-07-27

1981-06-09

Novosad, Stephen J.

Wells

Means for guiding insertable element laterally of well axis

29157R, 228174, E21B 2303, E21B 2312, E21B 4312, F04F 120

Patent

active

042719020

ABSTRACT:
A mandrel (10) of simplified construction and reduced cross sectional size for connection in well tubing comprises a cylindrical body (16) defining a main bore (20) for passage of wire line tools therethrough. A longitudinal slot (30) is formed in the cylindrical body (16). A side pocket subassembly (34, 42, 50, and 52) is secured to the body (16) over the longitudinal slot (30) formed in the body. The slot (30) is sized to permit passage of pocket devices only from the main bore (20) through the offset chamber (44) and into the pocket (60). If desired, an orienting member (22) can be provided within the cylindrical body (16).

REFERENCES:
patent: 2280787 (1942-04-01), Boynton
patent: 2368406 (1945-01-01), Boynton
patent: 2824525 (1958-02-01), McGowen, Jr.
patent: 2828698 (1958-04-01), Bryan
patent: 2846014 (1958-08-01), Daffin et al.
patent: 2988146 (1961-06-01), Fredd
patent: 3741299 (1973-06-01), Terral
patent: 3874445 (1975-04-01), Terral
patent: 4035103 (1977-07-01), McMurry et al.

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