Oil storage system
Oil well rig with water tower
Oil-production platform and method of assembling and installing
Onshore/offshore method and apparatus for drilling
Orientatable blocking unit with cardan joint for supporting stru
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
Outer device for universal inspection of risers
Overloading device for a jack-up oil platform and platform inclu