Insulated concentric tubing joint assembly

Details Insulated concentric tubing joint assembly Insulated concentric tubing joint assembly

1985-10-07

1986-04-01

Callaghan, Thomas F.

Pipe joints or couplings

With casing, lining or protector

Insulated

29446, 29455R, 138149, 285138, F16L 5914

Patent

active

045793735

ABSTRACT:
An insulated pipe assembly and joint apparatus and method for assembly thereof utilized in hydrocarbon recovery steam processes whereby a pre-tensile stressed tubing and pre-compressive stress casing are assembled with a sealably threaded combination coupling, this said assembly being a pre-assembled unit which ultimately in application is strung with additional units and held together with a plurality of standard pipe couplings.

REFERENCES:
patent: 861828 (1907-07-01), Grindrod et al.
patent: 2805871 (1957-09-01), Hammon
patent: 3928903 (1975-12-01), Richardson et al.
patent: 4332401 (1982-06-01), Stephenson et al.
patent: 4340245 (1982-07-01), Stalder
patent: 4341392 (1982-07-01), van Dongeren
patent: 4396211 (1983-08-01), McStravick et al.
patent: 4415184 (1983-11-01), Stephenson et al.
patent: 4423778 (1984-01-01), Goldsmith

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