Subsea Pipelines, Cables & SURF

Pipeline & Riser Design

• Wall thickness design — burst, collapse, combined loading (ULS)
• On-bottom stability — DNV-RP-F109, submerged weight design
• Upheaval and lateral buckling — VAS spacing, snake-lay, DNV-RP-F110
• Free-span analysis and VIV fatigue — DNV-RP-F105
• SCR and flexible riser design — OrcaFlex, DNV-ST-F201 / API RP 17B

Cables, Umbilicals & Shore Crossings

• Power cable and umbilical on-bottom stability — and cable protection engineering
• Inter-array and export cable route engineering
• Shore approach and HDD crossing design — ASTM F1962, drill path, pullback load
• Cable burial and rock-dumping engineering

Installation & Pre-commissioning

• S-lay and J-lay installation analysis — OrcaFlex
• Towed and pulled pipeline installation — bottom-pull, reel-lay
• Transportation and installation (T&I) engineering — MWS packages
• Pre-commissioning — flooding, gauging, hydrotest, dewatering