A MULTI-FUNCTIONAL JACK UP SYSTEM FOR DECOMMISSIONING AN OFFSHORE PLATFORM

摘要

A multi-functional jack-up (200) for decommissioning an offshore well rig (100) is disclosed herein. In a described embodiment, the jack-up (200) comprises a hull (202) supportable by a number of jack-up legs (206), a cantilever platform (216) movably mounted to the hull (206), a mobile crane (232) and a tubular-handling crane (248) mounted to the cantilever platform and arranged to be operable independently from each other.