Ensuring safe CO₂ transport through proven pipeline integrity solutions
As the energy industry evolves to meet decarbonisation targets, Verbrec delivered a feasibility study to assess the safe conversion of existing pipelines for high-concentration carbon dioxide (CO₂) transport. The study specifically focused on ensuring pipeline integrity through fracture control measures and effective internal corrosion protection.
Standards and guidelines adherence
The study adhered strictly to NACE guidelines and incorporated a comprehensive assessment of corrosion risks specific to dense-phase CO₂. Additionally, a detailed review of industry publications concerning CO2 pipeline repurposing was completed to ensure compliance with established best practices.
A detailed compliance review against Australian Standard AS 2885 (Parts 1 and 3) confirmed that safety and structural integrity would remain uncompromised under the proposed service conditions.
Corrosion
Control
Assessed to NACE standards for safe CO₂ transport.
AS 2885
Assessment
Safety and structural integrity confirmed.
Fracture
Toughness
EPDECOM modelling confirmed ductile integrity.
Fracture toughness analysis
Advanced EPDECOM modelling was used to evaluate fracture toughness and identify the level of ductile performance required for safe operation. This modelling was critical in understanding the material behaviour needed when transporting CO₂ under high pressure.
A gap assessment was also completed to identify additional safety measures required for retrospective application, guided by the ALARP (As Low As Reasonably Practicable) principle. Alternative fracture control strategies were explored to manage potential risks identified during the study.
Turning technical insights into practical outcomes
The feasibility study clearly identified the technical and safety considerations required for converting existing pipelines to manage high concentrations of CO2 effectively. It provided detailed insights into maintaining pipeline integrity and ensuring safe operational practices.