The Norne Satellite project in the Norwegian Sea involved installation of a 9 km long 15” thermally insulated clad steel production pipeline. The pipeline is equipped with Direct Electrical Heating for hydrate control and an in-line T for connection of a mid-line reservoir. The installation was performed in 2005 with the reel ship “CSO Apache” after completion of comprehensive qualification programs. The Norne Satellite project represents a step forward in sub-sea pipeline technology, with the following main firsts: • Reeling of clad steel pipeline. • Direct Electrical Heating of clad steel pipeline. • Direct Electrical Heating of pipeline with in-line T. • AUT of clad steel girth welds. This paper presents experiences from the qualification and installation works.

Volume Subject Area:
Terry Jones Pipeline Technology
Topics:
Cable reels, Heating, Pipelines, Steel, Satellites, Seas, Reservoirs, Ships, Welded joints
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Copyright © 2006
 by ASME
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