Offshore staff
SNEEK, the Netherlands – NOV Flexibles has contracted Lankhorst Ropes to supply Lankoforce riser tethers for BG’s Knarr field development in the Norwegian North Sea.
The field is being developed with anFPSO in 410 m (1,345 ft) of water in the North Tampen region.
According to Lankhorst, the tethers will be the first to use Dyneema DM 20, a high modulus polyethylene (HMPE) rope, for permanentsubsea anchoring of flexible risers.
Each of the Knarr development riser tethers consist of two HMPE tethers connecting a hold-down clamp with an anchor, allowing rotation around two axes.
The tethers incorporate a Lankoforce rope construction with a 12-strand braided Dyneema DM20 rope core, which provides the stipulated strength and mechanical performance. The entire rope core is protected by a braided polyester jacket and polyurethane coating, and includes ROV handling points for installation purposes.
11/13/2013
