voestalpine Grobblech will now be delivering heavy plates for two offshore projects, the Ichthys Field off the coast of Australia, and the Heidelberg Field in the Gulf of Mexico.
voestalpine Grobblech is delivering heavy plates for the Ichthys Field offshore project, 200 km off the coast of Western Australia. Huge gas reserves lie dormant under the seabed off Australia’s coast, and special clad plates are needed to transport the aggressive, high pressure, high temperature gas. These so-called flowlines, pipelines leading from the source to the production platform, are supplied by voestalpine Grobblech. Between October 2012 and July 2013 the first voestalpine subsidiary will have supplied a total of 1,132 clad plates weighing a total of 3,840 tons.
As well as Australia, voestalpine Grobblech is also in demand in the Gulf of Mexico. Thanks to the Heidelberg Project, the voestalpine subsidiary is delivering spar offshore construction plates for the floating platform; 1,550 tons for the topside, the area above water, and 10,000 tons for the underwater hull. A spar hull has a diameter of 35 m, is 120m in length and weighs 23,000 tons. It needs to be this size to house the large number of storage and ballast tanks. The ballast tanks control the buoyancy of the spar. In future the Heidelberg hull will transport 80,000 barrels of oil and 2.3 million m³ of gas each day from depths of 8,700 m.