Installation Underway for World's Longest Heated Subsea Pipeline
Installation is underway in the Norwegian sector of the North Sea for the world’s longest heated subsea production pipeline, oil and gas company Neptune Energy has informed.
The project will see the installation of the 36-kilometer electrically trace-heated (ETH) pipe-in-pipe solution transport oil from the Neptune Energy-operated Fenja field to the Njord A platform, operated by Equinor.
"Due to the high wax content of the Fenja field’s oil, the contents of the pipeline must be warmed up to a temperature above 28-degree Celsius before starting the flow after a shut down. During normal production, the temperature in the pipeline is well above this temperature," Neptune explained.