Bibliographic Citation
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| Title | World`s deepest underwater pipeline challenges industry |
| Publication Date | 1996 Aug 01 |
| OSTI Identifier | OSTI ID: 438951 |
| Other Number(s) | Journal ID: PLGJAT; ISSN 0032-0188; TRN: TRN: IM9711%%415 |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Pipeline and Gas Journal; Journal Volume: 223; Journal Issue: 8; Other Information: PBD: Aug 1996 |
| Subject | 03 NATURAL GAS ;42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; PIPELINES; ARABIAN SEA; NATURAL GAS; TRANSPORT; CONSTRUCTION; OMAN; INDIA; FABRICATION; PIPES; CARBON STEELS |
| Description/Abstract | It is a proposed project almost beyond description and imagination: an underwater long-distance gas pipeline from Oman to India that requires a large part of the approximately 1,135--1,200 kilometer (705--750 mile) line to be laid in the Arabian Sea at depths as low as 3,500 meters (11,500 feet). Not only are the pipes required to have thick walls yet relatively small diameters, but they must also have ideal roundness to prevent their premature deformation from the extreme outside pressure. Even minor deviations from perfect roundness can result in premature collapse of the line due to buckling. To date, no large-diameter line pipes have ever been manufactured with such an extremely low diameter-to-wall thickness, let alone pipes made from high-strength X 70 grade steel. The absolute production record to date was a wall thickness of 40 millimeters, and even that could only be achieved at considerably larger diameters. Europipe engineers went into action, first by painstakingly inspecting all machine-tools and plants, then the Mannesmann Research Institute in Duisburg-Huckingen was commissioned to carry out a computer simulation program. In the end, the results confirmed in principle that it is possible to manufacture high-strength steel pipes with such extreme dimensions. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: pp. 25-26 |
| System Entry Date | 2009 Dec 16 |
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