Nexans to supply DEH cable for Maria-Kristin tieback

Offshore staff

PARIS – Statoil has contracted Nexans for a direct electrical heating (DEH) riser cable system for installation in the Norwegian Sea.

This will connect the Statoil-operated Kristin and Wintershall-operated Maria fields with the Kristin semisubmersible platform, and will replace an existing DEH riser cable from the platform.

The new system will be linked to a subsea connection box, and will contain four cores to enable the operation of one DEH line to the Kristin field and one to Maria.

DEH involves controlling the temperature on the pipeline by passing electric current through the pipeline’s steel wall, thereby preventing hydrate and wax formation. Beyond 300 m (984 ft) water depth, the water temperature is just above 0°C (32°F).

In addition, FMC Technologies has awarded Nexans a subcontract for a dynamic control umbilical system for the same project.

Production of the DEH riser will start during fall 2015, followed by delivery in spring 2016.

12/02/2014

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