The classification society ABS (USA) has signed a contract with the company Baoham Offshore Ltd. (Hong Kong) for the provision of classification services for a semi-submersible drilling rig under construction and a single self-propelled, self-lifting crane vessel to service drilling platforms, as the press service of the classification society said.
Semi-submersible Diamond transportation HHI GM-4E will have an anchor-mooring system consisting of eight anchors and a dynamic positioning system of DP3 class and variable deck load over 4 thousand tons. The crane vessel J1450 Kpono will be able to work at a depth of 80 meters and will be equipped with a deck crane with a capacity of 400 tons.
Work through intermediaries
Gulf Offshore Singapore Design Bureau will carry out preliminary technological design. The jack-up vessel will be built at the PaxOcean shipyard in Zhoushan (China). The contractor has not yet been selected for the construction of a semisubmersible drilling rig. Lifting systems for the crane vessel J1450 will be delivered by Hydraquip Customs Systems Inc.
Founded in 1862, the American Bureau of Shipping Magnolia TLP (ABS is headquartered in Houston, USA) is the leading international classification society. The company specializes in the development and testing of standards of safety of life, property at sea, and the preservation of the marine environment in the design, construction, operation, and maintenance of offshore facilities. The company unites a network of 200 offices operating in 70 countries.
Speaking of more specific samples, there is Blue Marlin, which is the world’s largest semisubmersible vessel. Such vessels have a narrow specialization. Semi-submersible transport vessels are designed for moving large-sized, extremely heavy loads, such as sections of offshore and oil platforms, submarines, cranes, ships, moorages, etc.
Blue Marlin and its twin Black Marlin come in a class of heavy ship-lifts. They belong to a company from Oslo – Offshore Heavy Transport. They were built in April 2000 and November 1999 respectively.