Risk based Corrosion Under Insulation (CUI) management programme for piping

Application: Equipment and piping.
Project scope: Risk-based analysis of Corrosion Under Insulation (CUI).
Client: Operator, North America.

CUI has presented a major threat to asset integrity for many years and implementing an effective management programme, particularly for piping, can be a major undertaking.

We were asked by the operator to assign all its insulated equipment and piping to a managed CUI program and prioritise the inspection and maintenance plan. Our experts collected the appropriate data and predicted the risk of CUI damage based on design and inspection information. We carried out both visual and NDE inspections, updating the risk profile based on the findings.

Alongside establishing a manageable CUI programme, we developed a 10-year inspection plan with the client. Our prioritised list of items requiring future inspections was informed by both current and future risk. As a result of the project, the operator could spread the multi-million dollar maintenance costs over a five-year period, with maintained or reduced risk levels. All of our objectives were met in less than six months.