TECHNOLOGY Subsea pipeline gets welded branch without halting flow

12/11/1995
Alan West Graham Hutt Stolt Comex Seaway Ltd. Aberdeen Robert Starsmore Wintershall Noordzee B.V. Den Helder, The Netherlands Side-tap design parameters (10494 bytes) In October 1994, a 16 in. welded branch was installed without interruption to production onto Wintershall Noordzee BVs 36-in. gas pipeline from the K13-A platform in the Dutch sector of the North Sea to Den Helder, The Netherlands. The procedure is the first successfully to combine hyperbaric welding and subsea hot tapping without interruption to production. Developers of new fields can now consider exporting product without interrupting existing production and through existing infrastructure even if no convenien...
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