Scarborough Project - Subsea Structure Fabrication - Carbon Steel and Clad

Subsea 7 scope of work for Scarborough SURF Project involves the project management, engineering, procurement, fabrication and installation of the following packages of work:

• 13 subsea wells 'daisy–chained' via in-line tees (ILT)
• Carbon steel flowlines, 17.5km, 13km, 12.5km.
• Gas Export RBM (circa 300 Te)
• Flexible risers connect to the FPU.
• Subsea developed with 7 wells during Phase 1 and 6 wells in Phase 2
• Phase 1 subsea infrastructure to accommodate full 13 well development
• All 6 flexible risers & one dynamic Umbilical to be installed in Phase 1 and wet parked waiting for FPU.
• 6 x FLETs, 7 x ILT’’s,
• 1 x Export Riser Base Manifold,
• 3 x 14” ID Flexible Production Risers (circa 3km),
• 3 x 14” ID Flexible Export Risers (circa 3km),
• 43km 16” NPS carbon steel flowlines in 3 sections
• 1 x Umbilical Riser,
• 7 x Static Umbilicals in Phase 1
• UTA’s, Well Jumpers and Flying Leads
• Testing and commissioning

The scope of the Structure Fabrication package includes fabrication, inspection and testing of the following:

• 1 off Riser Base Manifold structure, 251 Tonne
• 1 off Riser Base Foundation structure, 57 Tonne
• 4 off Riser Base Foundation Piles, 43.8 Tonne each
• 1 off Initiation anchor pile, 74 Tonne
• 13 off pre-installed mudmat structures, 43.3 Tonne
• 7 off Flowline In-Line Tee structures, 38.7 Tonne each
• 3 off Flowline End Termination structures, 29.3 Tonne each
• 2 off Flowline End Termination structures, 67.8 Tonne each
• 1 off Flowline End Termination structure, 59.3 Tonne
• 1 off 32” Pig Launch and Receiver structure, 44 Tonne
• 1 off 16” Pig Launch and Receiver structure, 15.6 Tonne
• 6 off 16” Gooseneck structure for flexible connections, 4.2 Tonne each
• 14 off 10” Gooseneck structure for flexible connections, 1.5 Tonne each
• Seafastening steel fabrication, 150 Tonne