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Snøhvit lines in place

Contributed by Torodd Bergstøl
Friday, 07 October 2005
Pipelines and umbilicals connecting subsea installations on Statoil's Snøhvit field in the Barents Sea with the process plant on land have been laid on schedule and below budget.

Just over 723 kilometres of these links had been laid when the Apache reel layer completed installation of the last two pipelines on 24 September.

In addition come two pipelines for chemicals and one for carbon dioxide being returned to the field for injection beneath the seabed.

The pipeline for multiphase flow of the wellstream and the umbilical both rank as the longest installations of their kind in the world.  In addition come infield pipelines and umbilicals linking the various installations on Snøhvit itself.

Technology developed for these two facilities makes it possible to transport unprocessed production over long distances and to control subsea field installations remotely from land.

All infield flowlines, the wellstream pipeline and the carbon dioxide line have been pressure-tested with water without any leaks being observed.

The pipelaying programme has been completed as planned, and we've also delivered this work at less than the forecast cost.

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