Semisubmersible offshore vessel

Details Semisubmersible offshore vessel Semisubmersible offshore vessel

1997-09-08

2000-01-18

Neuder, William

Hydraulic and earth engineering

Marine structure or fabrication thereof

With work deck vertically adjustable relative to floor

405207, 405208, 114256, B63B 3540, B63B 3534, B63B 3544

Patent

active

060152451

ABSTRACT:
Improvements to a ring pontoon semisubmersible vessel. The centerlines of the corner columns ar displaced with respect to the axial centerlines of the forward and aft portions of the ring pontoon. Additionally, the centerlines of the corner columns may be displaced with respect to the axial centerlines of the starboard and port portions of the ring pontoon. The superstructure deck may be supported by radial braces extending from the ring pontoon to locations on the superstructure deck which are inward of the ring pontoon.

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GVA 4000 Semi-submersible Drilling Rig (undated).

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