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Construction of 167-kilometre long, 20-inch export pipeline connecting the Garden Banks (GB) 72 platform to the ultra-high-pressure Shenandoah deepwater development in the Gulf of Mexico.
Company : Genesis Energy
Location : U.S. Gulf of Mexico, 257 km off the Louisiana coast
2012 m
Max. water depth
Scope of work
- Design & fabrication of installation aids, in-line structures (PLETs, ILY, ILV, flange c/w dual ball
- valve valve)
- Design & production of 18-inch and 20-inch VIV strakes (incl. anti-fouling coating)
- Installation of 167 km, 20-inch oil pipeline
- Installation of 4.4 km, 18-inch SCR c/w titanium stress joint
- Installation of buckle arrestors, anode joints and mattresses at 18-inch start-up location
167 km, 20-inch
Installation of oil pipeline
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Specials & challenges
- Short preparation and fabrication time
- Fatigue testing of SCR welds as part of SCR weld procedure qualification programme
- Pipeline initiation in a congested area
- Pipeline installation across a subsea escarpment area
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