Offshore tower with ball and socket joint having fluid flow pass
Oscillatable marine installation and method for its construction
Oscillating installation for installing in a body of water and m
Oscillating marine platform connected via a shear device to a ri
Oscillating marine platform with a rigid base
Oscillating platform on flexible piles for work at sea
Oscillating structure for exploration at sea
Pivotal connecting device for pivotally connecting an off-shore
Pivotal connection for articulated column of sea-bed working str
Production equipment for oil-fields at sea
Safety device for anchored marine structure
Self-levelling underwater structure
Sliding leg tower with pile base
Sliding tension leg tower with pile base
Spherical joint for connecting a concrete tower supporting a wat
Support tower for offshore well
System for drilling from a water surface, which is insensitive t
System for offshore operations
Tension-restrained articulated platform tower