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Installation of 12-inch export pipeline connecting the ultra-deepwater Profundo development with shallow water infrastructure, offshore Brazil.
Company: Technip Brasil (Petrobras)
Location: Santos Basin, Atlantic coast of southeastern Brazil
1180 m
Max. water depth
Scope of work
- Detailed design & engineering
- Procurement & supply (coated line pipe, anodes, valves & connectors)
- Fabrication (PLRs, span supports, ILBV & PLET)
- Crossing preparations
- Installation of 50-km, 12-inch export line (started with ILBV at shallow end & terminated with dual hub PLET at deep end)
- Span rectification
- Flooding, cleaning, gauging & testing
50-km
12-inch export line
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Specials & challenges
- EPCI project in joint venture with Technip Brasil
- Extremely tight schedule
- Anode taper design complete with interface system for in-house 3LPP coating
- Multiple free spans & crossings
- New double-joint welding system with sour service design/welding requirements
- New see-saw roller boxes & field joint coating cooling system for acceptable pull times
- Steep slopes, curves & tight lay tolerances due to existing infrastructure and coral outcrops
- ILBV (c/w mudmats) installation with 140-m-long stinger at 28 m water depth
- PLET installation in 1180 m water depth in congested area with tight installation tolerances
140-m-long
stinger at 28 m water depth
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