Subsea pipeline connection

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...

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Details

405171, 166343, F16L 104, E21B 4301

Patent

active

045589720

ABSTRACT:
A method and apparatus are provided for laying an offshore pipeline or flowline bundle to a deepwater subsea structure. The pipeline or flowline bundle is laid along a prescribed path, preferably U-shape, such that a pullhead at the terminus of the pipeline or flowline bundle falls just short of the subsea structure. A pull-in tool connected to the pipeline or flowline bundle by a short length of pull cable is then landed on and latched to the subsea structure, and the pipeline or flowline bundle is pulled up to the subsea structure by the pull-in tool and pull cable.

REFERENCES:
patent: 3298092 (1967-01-01), Dozier et al.
patent: 3426842 (1969-02-01), Corley et al.
patent: 3431739 (1969-03-01), Richardson et al.
patent: 3482601 (1969-12-01), Drouin
patent: 3695350 (1972-10-01), Petersen
patent: 3710859 (1973-01-01), Hanes et al.
patent: 3716100 (1973-02-01), Nelson
patent: 4145909 (1979-03-01), Daughtry
patent: 4367980 (1983-01-01), Ames et al.
patent: 4371005 (1983-02-01), Morrill et al.
A Technical Description of Multiple Wellhead Manifold Control System, Offshore Systems Inc., Nov. 26, 1969.

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