Deep draft semisubmersible movable offshore structure

Details Deep draft semisubmersible movable offshore structure Deep draft semisubmersible movable offshore structure

2007-09-18

2007-09-18

Avila, Stephen (Department: 3617)

Ships

Floating platform

Multiple leg

C405S195100

Reexamination Certificate

active

11694708

ABSTRACT:
The present invention is a deep draft partially submersible and buoyant floating vessel comprised of at least three independent vertical columns. The columns have an upper column with an upper column diameter and a lower column integrally connected to the upper column with a lower column diameter smaller than the upper column diameters. The lower column contains a variable ballast, a free flooding ballast, and a lower column fixed ballast. The lower pontoon is connected to each lower column opposite the upper column. The lower pontoon has lower pontoon fixed ballast means. A deck is located on the columns for supporting a tensioner assembly.

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