Neptune commissions DNV for North Sea carbon capture study

Offshore staff

ARNHEM, the Netherlands – Neptune Energy Netherlands has awarded DNV a carbon capture and storage (CCS) pipeline materials study. The goal is to assess the fracture and suitability of offshore pipelines for re-use in CO2 transport.

According to DNV, the pipeline materials analysis is part of a wider feasibility study conducted by Neptune with its license partners and various carbon dioxide (CO2) emitters, as they plan for a large-scale offshore CCS project at the company’s L10 area in the Dutch North Sea.

If the project goes ahead, it would be one of the largest CCS facilities in the Dutch North Sea, accounting for over 50% of the CO2 reduction targeted by the Dutch industrial sector.

During the first phase DNV study will identify approaches to ductile fracture assessments in dense-phase CO2 pipeline systems and their applicability to both welded and seamless subsea line pipe. This will draw on reviews of technical literature in an attempt to deliver the most appropriate method for characterizing the material failure behavior.

From phase on, the most suitable approach identified will be applied to phase two of the study to assess the suitability of existing pipelines for dense-phase CO2 transport at up to 120 bar (1,740 psi).

Finally, findings from the study will inform Neptune’s ongoing feasibility study to help determine the suitability of the existing pipelines that would be used to inject 5-8 MM metric tons (5.5 - 8.8 MM tons) of CO2 annually into the depleted gas fields.

6/22/2021