Crane assembly for floatable oil/gas production platforms

Details Crane assembly for floatable oil/gas production platforms Crane assembly for floatable oil/gas production platforms

1981-10-09

1984-09-11

Corbin, David H.

Hydraulic and earth engineering

Marine structure or fabrication thereof

212190, 114264, B63B 3544, E02B 1700

Patent

active

044707215

ABSTRACT:
A floatable oil/gas production platform assembly has a deck, disposed beneath the deck a zone including a plurality of adjacent stations for support of oil/gas flowlines/risers originating from beneath the platform, and a crane disposed in a space above the station zone but below the deck and moveable over at least some of the stations.
Such an assembly enables two new alternative equipment arrangements to be provided in floating platforms for tensioning and supporting underwater well maintenance lines or "workover risers" which require considerable tensioning forces and stroke capacity for safe support.

REFERENCES:
patent: 3817412 (1974-06-01), Mercier et al.
patent: 4090368 (1978-05-01), Bell et al.
patent: 4108318 (1978-08-01), Rode et al.
patent: 4135841 (1979-01-01), Watkins
patent: 4215950 (1980-08-01), Stevenson
patent: 4234269 (1980-11-01), Person et al.
patent: 4351261 (1982-09-01), Shanks

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