An offshore structure having a vertically symmetric hull, an upper vertical wall, an upper
inwardly-tapered wall disposed below the upper vertical wall, a lower outwardly-tapered …

2. Background Art Stable buoyant structures for supporting offshore oil and gas operations
are known in the art. Offshore production structures, which may be vessels, platforms …

An offshore floating production, Storage, and off-loading ves sel has a hull of generally
cylindrical or polygonal configu ration Surrounding a central double tapered conical moon …

An offshore structure having a vertically symmetric hull, an upper vertical wall, an upper
inwardly-tapered wall disposed below the upper vertical wall, a lower outwardly-tapered …

This invention relates to a Floating Production, Storage and Offloading (FPSO) structure for
marine petroleum exploita tion in deep or ultra-deep waters, in the form of a mono column …

An offshore structure having a hull, an upper vertical wall, an upper inwardly-tapered wall
disposed below the upper vertical wall, a lower outwardly-tapered wall disposed below the …

The invention relates to the field of buoyant bodies, and more particularly to an annular
buoyant body (1) including a central moonpool (2), configured Such that, in water, with Swell …

This invention is directed to a column floater with extended cylinder and a ring buoy-group,
which comprises an upright buoy at a water surface, an extended cylinder, a positioning …

The present disclosure provides in at least one embodiment a rotatable keel skirt assembly
on a rectangular-shaped keel pontoon. The rectangular-shaped keel pontoon reduces the …

(57) ABSTRACT A method for drilling with a buoyant structure having a hull, a planar keel
defining a lower hull diameter, a lower cylindri cal portion connected to the planar keel, a …