Ærfugl EHTF pipeline

The Ærfugl EHTF project presented a unique challenge in ensuring reliable flow assurance for oil transportation in the challenging North Sea environment. The pipeline needed to maintain operational temperature for high-efficiency flow without requiring extensive modifications to existing facilities. The use of active heating was crucial in achieving this goal.

ITP Pipeline delivered a compact PiP system with the following features:

• Izoflex Insulation: Ensuring a low U-value (< 0.5 W/m²·K), providing excellent thermal performance for the 20 km pipeline.
• FlowsureAx Heating Wires: These were integrated into the system for continuous, efficient resistive heating, preventing flow assurance issues in deep subsea conditions.
• Compact and Efficient Design: The 10.75” / 16” PiP system was designed to enable reeling for installation, optimizing transportation and installation efficiency at a water depth of 450 meters.

The project’s success can be attributed to the innovative combination of ITP Interpipe’s thermal insulation and heating technology, which allowed for a continuous heating solution with low power consumption. This approach minimized the need for extensive modifications to existing infrastructure, ensuring cost-effectiveness while maintaining flow assurance. The efficient use of the PiP system, coupled with the ease of reel-lay installation, made this project a milestone in subsea oil transportation.