Method and installation for removing a superstructure

Details Method and installation for removing a superstructure Method and installation for removing a superstructure

E - Fixed Constructions

02

B

E02B 17/00 (2006.01) B63B 35/00 (2006.01)

Patent

CA 2189306

The invention relates to a method for removing a superstructure from a jacket placed on a sea-bottom, wherein a vessel is positioned in the vicinity of the jacket. Such a method is known. There is the danger therein of the superstructure colliding with the jacket during lifting thereof because it moves up and down with the vessel floating on the waves. The superstructure and/or the jacket can herein be damaged. The invention has for its object to avoid such damage. To this end the method according to the invention has the characteristic that the superstructure is engaged by engaging means which are movable relative to the vessel, that the movement of the vessel in the waves is detected, and that lifting of the superstructure from the jacket is started when it is detected that the vessel is situated below its average level.

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