Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1979-12-20
1982-06-01
Callaghan, Thomas F.
Pipe joints or couplings
With casing, lining or protector
Insulated
138149, 285 53, 285355, F16L 5914
Patent
active
043324010
ABSTRACT:
An insulated casing assembly for use in injecting steam into wells, comprising a plurality of interconnected casings, each casing having outer and inner tubular sections, an annular spacing between the two sections containing multilayered thermal insulation enveloped in a low conductivity gas, and tubular bellows connecting and allowing relative movement between the corresponding ends of the two inner sections. A leak-proof connection between adjacent casings includes a diffuser sleeve fitted tightly over the ends of adjacent inner tubular sections, a filler ring fitted on the diffuser sleeve and disposed between adjacent outer tubular sections, and a threaded coupling screwed onto threaded ends of outer tubular sections of adjacent casings.
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Cunningham Charles R.
Kohl John M.
Stephenson Edgar O.
Callaghan Thomas F.
General Electric Company
Green, Jr. H. H.
Lampe, Jr. Robert C.
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