Allseas completes laying of offshore pipe for Porthos CO2

  • Gas
  • July 25, 2025

Offshore technology firm Allseas’ vessel Lorelay has successfully completed offshore pipelaying for the Porthos carbon dioxide transport and storage project.

It is part of the first large-scale carbon capture and storage (CCS) initiative in the Netherlands, which is expected to become operational next year.

The 20km, 16-inch pipeline will carry captured CO2 from Rotterdam’s industrial area to depleted gas fields beneath the North Sea. With the pipe now laid, the trenching phase begins, where the pipeline will be safely buried to ensure long-term protection and reliability.

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