Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1991-09-13
1993-01-26
Corbin, David H.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405171, 405173, 4051681, 405156, F16L 112
Patent
active
051817985
ABSTRACT:
A pipelay apparatus and method comprising a steel turntable and a stinger pipe guide which can be supported on the construction deck of a repair vessel or drill ship are provided. The turntable is framed so that loads from two hanging pipes can be securely supported. The table-supported framing members can be moved so the load centerline for each pipeline can be placed an appropriate distance from the center of turntable rotation, which is useful where the two pipelines are of different diameters. This apparatus permits a vessel to simultaneously handle different sizes of pipe and pass large diameter appurtenances without modifying the stinger pipe guide.
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"Deepwater Pipeline Repair Methods, Method Summaries" by C. G. Langner, Proposal Presentation Mtg., Nov. 10, 1988, Shell Development Company.
"Deepwater Vertical Pipelay from a Dynamically Positioned MODU" by Florence et al, OTC Paper 6729, May 6-9, 1991, Houston, TX, OTC Conf.
Christensen Del S.
Corbin David H.
McBee J. Russell
Shell Oil Company
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