Spar with detachable hull structure

Details Spar with detachable hull structure Spar with detachable hull structure

B - Operations, Transporting

63

B

B63B 21/50 (2006.01) B63B 35/44 (2006.01)

Patent

CA 2710197

A spar-type offshore platform (10) includes a buoyant upper hull structure (12,42) having a lower end to which is detachably connected a buoyant lower module (16,46). A plurality of mooring line assemblies (18,58) is connected to the lower module, the total weight of the mooring line assemblies being sufficient to sink the lower module. A method of separating the upper hull structure from the lower module includes disconnecting the lower module from the lower end of the upper hull structure, and then allowing the weight of the mooring line assemblies to sink the lower module.

L'invention concerne une plate-forme marine de type Spar comprenant une structure de coque supérieure flottante ayant une extrémité inférieure qui est fixée de façon amovible à un module inférieur flottant. Une pluralité d'ensembles lignes d'amarrage est reliée au module inférieur, le poids total des ensembles lignes d'amarrage étant suffisant pour faire couler le module inférieur. Un procédé de séparation de la structure de coque supérieure et du module inférieur consiste à détacher le module inférieur de l'extrémité inférieure de la structure de coque supérieure, et à laisser couler le module inférieur sous le poids des ensembles lignes d'amarrage.

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