Servicing of oil rigs

摘要

The invention relates to a method and a vessel for servicing oil rigs. The oil rig is raised from the sea onto the deck 30 of a semi-submersible service vessel but not transported from the operating site. Maintenance and repairs are performed at sea with the service vessel providing facilities similar to a floating dry dock. The cost of servicing may in this manner be reduced due to the fact that the rig need only be out of action for a relatively short time. Furthermore the efficiency of the maintenance and repair is improved as compared to such work being carried out under water. IMAGE