Darwin Pipeline Duplication

Scope of work

  • Engineering and installation of 123-km, dual diameter (26-inch; 34-inch) carbon steel pipeline with external anti-corrosion and concrete coating (initial 31 km by Sandpiper; 92 km by Audacia)
  • Procurement of coated line pipe
  • Design, fabrication, and installation of 1 off PLET and 1 off ILT
  • Spool fabrication and installation
  • Pipeline trenching and rock protection
  • Mattress installation and span rectification
  • Pre-commissioning activities (flooding, cleaning, gauging, hydro-testing, as well as dewatering and packing of the pipeline with nitrogen)
  • Post-lay and as-built surveys
  • Landfall site and pipe pull preparations