Ormen Lange – oil & gas

250 000 meters of MEG lines and umbilicals were to be protected during the 2006 and 2007 period.

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Ormen Lange Capjet w120Project description

  • Protection of 6” MEG-lines (Ethylene glycol) and umbilicals, from Nyhavna to the Ormen Lange field.

Project challenges

  • Water depth was down to 850 meters over a distance of 250 km with a burial depth of 1.5 meters.
  • Trenching had to be performed at angles between 15 and 25 degrees.  
  • The umbilical was unarmored and vulnerable with respect to coating damage.   
Ormen Lange Capjet2 w120 Nexans' solution:
  • The Nexans Capjet ® system performed all burial in order to protect the MEG-lines and umbilicals from trawlers and anchors.
  • Several special systems were developed to meet the challenges, notably the steep terrain with sideslopes.
  • The Capjet also performed dredging of the MEG lines to 2 m in rock support.
  • Later the Capjet also trenched an extension - in the Ormen Lange Southern field.