Mpu Enterprise As

John Schia

Tor Ole Olsen

Kare O Haereid

Jorn Bastholm Hansen

Kolbjörn Hoyland

Trond Landbo

Trond Landbö

A device for positioning and lifting a marine structure, particularly a platform deck, with the use of a U-shaped lifting vessel (). The device has at least two adjustable lifting frames (), each able to incline towards the middle of the docking area. Each of the lifting frames () consists of an upper horizontal lifting beam (), preferably situated on a level above the top of the lifting vessel (). The near-vertical part of the lifting frame () is connected to the lifting beam () in the upper end and in the lower end hinged () to the lifting vessel (). The near-horizontal part of the lifting frame () is in one end connected to the lifting beam () and in the other end adjustably connected to the lifting vessel ().

Device for positioning and lifting a marine structure, particularly a platform deck

A lifting vessel ( ) consisting of a lower U-shaped pontoon foundation ( ), a number of vertical columns ( ) attached to the pontoon foundation and extending upwards and through the water surface, and each column ( ) being free-standing above the pontoon foundation ( ). Methods for positioning, lifting and handling of a platform dock and a platform jacket is also described.

Lifting vessel and method for positioning, lifting and handling a platform deck and a jacket

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Snaroya, Norway

John Schia