Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1976-03-17
1977-04-26
Taylor, Dennis L.
Pipe joints or couplings
With casing, lining or protector
Insulated
29237, 61111, 285 18, F16L 104
Patent
active
040193349
ABSTRACT:
A subsea pipeline hub is connected to the hub of an adjacent spool piece connected to an in-place manifold of a subsea structure used in the production of oil and/or gas. The pipeline hub is positioned relative to the opposing spool hub and a remotely operated pipeline connecting tool is lowered from the water's surface to the subsea structure using guidelines and structural guidance for alignment of the pipeline hub with the spool piece hub. The spool piece hub is then drawn to the pipeline hub and the hubs are clamped together by operation of the connecting tool. The seal in the connection can be tested by means of the connecting tool. The spool piece may be retrieved and replaced by the connecting tool if maintenance is needed. Connecting tool operations are powered by hydraulic fluid and controlled from the surface. The pipeline hub may be lowered vertically and pivoted into its position adjacent the spool piece or may be pulled into that position.
REFERENCES:
patent: 3233667 (1966-02-01), Van Winkle
patent: 3481396 (1969-12-01), Williams et al.
patent: 3579794 (1971-05-01), Powell
patent: 3717920 (1973-02-01), Oliver et al.
patent: 3843168 (1974-10-01), Morrill et al.
Burkhardt Joseph A.
Childers Thomas W.
Daughtry Arthur C.
Sinclair Albert R.
Exxon Production Research Company
Schneider John S.
Taylor Dennis L.
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