There is very strong evidence that in most locations the seabed becomes unstable and mobile before the design conditions for a submarine pipeline are reached. The conventional theory of stability takes the seabed as stable, and is therefore fundamentally flawed. This is an important issue for pipelines to the north-west of Australia, where violent tropical […]
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Jay Ryan and Eric Jas, Atteris Pty Ltd, Australia, discuss the future of the on-bottom stability design of subsea pipelines and the advances being made in Australia.
Recent successful projects, including the shore crossing for the 42 inch North West Shelf second trunkline offshore Western Australia and the 20 inch Otway gas export pipeline at Port Campbell in Victoria have strengthened the position of Atteris as a specialist in the field of pipeline engineering and construction management. Atteris commenced operations in 1999 […]
An insight is provided into the design and construction of the shore crossing of the export pipeline system for the Otway Gas Project in Western Victoria. The development of the Otway Gas Project, which is now underway, requires the installation of a 20-inch gas pipeline and a 4-inch glycol service line across the shoreline in […]