Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1984-05-25
1986-05-27
Corbin, David H.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
166341, 166347, F16L 104, E21B 4301
Patent
active
045912920
ABSTRACT:
The present invention provides a method and apparatus for connecting a flowline to a subsea structure. A flowline connection tool is deployed downwardly to the subsea structure and secured to the subsea structure. A flowline terminal head, which is at the end of a flowline, is then pulled toward the flowline connection tool by means of a pull-cable. The flowline terminal head is then secured to the subsea structure and the flowline connection tool is recovered to the surface.
The flowline connection tool contains a prime mover means in order to minimize the length of cable exposed to forces encountered in pulling the flowline to the subsea structure.
REFERENCES:
patent: 3710859 (1973-01-01), Hanes et al.
patent: 3973625 (1976-08-01), Baugh
patent: 4382717 (1983-05-01), Morrill
patent: 4457378 (1984-07-01), Watkins
patent: 4459065 (1984-07-01), Morton
patent: 4518042 (1985-05-01), Miller
Petersen William H.
Stevens James W.
Corbin David H.
Shell Offshore Inc.
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