ORMEN LANGE-1: Extreme subsea conditions drive concept development

The irregular seabed in the area of the Ormen Lange field, the steep slide, and difficult areas along the coastline pose extreme challenges to pipeline design. Environmental conditions are also extreme, with subfreezing seabed temperatures and strong currents challenging flow assurance, pipeline installation, and pipeline integrity during the operational lifetime.Part 1 of this two-part series describes the Ormen Lange development plan with particular attention given to the 30-in. multiphase production pipeline system and how associated challenges are being solved.Part 2 will examine the lay methods used for Ormen Lange as well as the corrosion fatigue testing and electrical heating syste...

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