Troll, Haltenpipe showcase offshore pipelay advances

07/29/1996
Frank Blaker, Erling Gjertveit, Jostein Breivik Den norske stats oljeselskap a.s. (Statoil) Stavanger Pipelines installed on the Norwegian continental shelf represent current offshore pipeline installation technology for pipe size (up to 40 in.), water depth (to 540 m), distance between pigging stations (up to 800 km), and complex seabed intervention and landfall construction. Furthermore, the number of deepwater pipelines worldwide has triggered significant advances in the development of pipeline repair. The most important developments include the following: Use of advanced subsea mapping and positioning Hydraulic flow modeling to simulate unique flow conditions inside a d...
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