TPG 500 jackup adapted for platform installation and removal

摘要

TPG 500 IDV is a new installation/decommissioning vessel concept, developed by Technip-Coflexip, for operations in water depths to 120 m. It is designed to remove packages of 14,000 tons in a single operation and has a total elevating capacity of 26,400 tons. The IDV is a bottom-founded structure, derived from the TPG 500 jackup production platforms. Two of these platforms are installed and operating in the UK North Sea. The first, on BP's Harding field, has a topsides elevated weight of 17,500 tons. The second, on Total's Elgin platform, has a topsides elevated weight of 30,000 tons. A third TPG 500 platform is being designed for BP's Shah Deniz field in the Azeri sector of the Caspian, with an elevating capacity of around 23,000 tons. Since the IDV is bottom founded, it does not require active systems to compensate for motion due to sea conditions. The height of the hull/deck can also be varied, providing a safe fixed working platform for preparatory work before removal of a topside structure or jacket.