BG Norge Knarr

General information

Client BG Norge 
Project BG Norge Knarr 
Year 2013  
Location Norwegian Sea 
Vessels Audacia, Calamity Jane 
Max. water depth 410 m (1345 ft)
Pipe characteristics 3LPP coated pipe and CWC pipe

Scope of work

  • EPIC project
  • Procurement of 107 km, 12.75-inch x 12.7/13.0 mm, 3LPP coated line pipe, ball valve, buckle arrestor, anodes, 5D induction bends and concrete mattresses for crossings
  • Detail design
  • Design and fabrication of a PLET
  • Installation of 105.4 km, 12.75-inch pipeline with 7 pipeline / cable crossings
  • Trenching (70.7 km), including OOS survey
  • Pre-commissioning
  • Rock dumping (approximately 35 km), plus additional rock dumping for upheaval buckling

Project specials

  • Installation of pipeline sensitive to upheaval buckling
  • Free flooding of pipeline during pipelay

Pipe characteristics

104.4/65.9 12.75 12.7/13.0 DNV 450 FSD