Push-on coupling apparatus for tubular well completion structure

Details Push-on coupling apparatus for tubular well completion structure Push-on coupling apparatus for tubular well completion structure

1994-02-28

1995-05-16

Arola, Dave W.

Pipe joints or couplings

Movable jaw

285330, F16L 2106

Patent

active

054154413

ABSTRACT:
Using a specially designed push-on coupling structure the facing end portions of two tubular well completion structures, such as a length of coil tubing and a tubular coupling member, are fixedly and sealing connected to one another simply by pushing one of the end portions into the other end portions. The coupling structure includes an O-ring seal member carried by one of the end portions for creating a fluid tight seal between the telescoped end portions; a radial projection carried by one of the end portions and receivable in a side wall slot in the other end portion for preventing appreciable relative rotation between the telescoped end portions; and an axially split locking ring member coaxially threaded onto one of the end portions and having a gripping thread section disposed thereon and operative to engage the other end portion in a manner permitting the two end portions to be initially telescoped with one another but precluding their subsequent axial separation. This push-on coupling apparatus is representatively illustrated as being incorporated in a coil tubing splice member, on opposite ends of a tubular well completion device such as a landing nipple, and on a two piece push-together coupling structure used to operatively connect two tubular sand screen sections.

REFERENCES:
patent: 3502353 (1970-03-01), Burns
patent: 3701550 (1972-10-01), Jacobson
patent: 4616855 (1986-10-01), Ruhle
patent: 4682657 (1987-07-01), Crawford
patent: 5238273 (1993-08-01), Laflin et al.
patent: 5306050 (1994-04-01), Laflin et al.
Bowen Tools, Inc., 1992-1993 General Catalog, pp. 14-16.

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