There are a number of techniques available for detecting corrosion under insulation (CUI) in the Oil & Gas industry, however most are very slow and require direct contact with the equipment being inspected.

These techniques are time consuming and expensive. Scaffolding is often required to reach pipework, which can take time to organize and be labor intensive.

A thermography program is an effective method for identifying existing CUI, as well as areas that may be at risk. It is also useful for quickly assessing insulation integrity.

Thermography allows the user to detect areas of water/moisture ingress within insulation, where CUI may be occurring and where there is potential for it to occur in the future.

When water or moisture gets into insulation, it changes the thermal capacity of the insulation. After a number of cycles that “change in insulation capacity” becomes permanent. This allows users to inspect surface temperature profile and identify anomalies.

Applied correctly, thermography is a very effective method for finding existing CUI and early stage water ingress.

Intec Analysis - CUI Risk

Intec Analysis thermal image – CUI risk identification image.

An active CUI risk monitoring program has many benefits. Companies can target areas of interest and prioritise maintenance.

Many insulated lines and components in a facility can be scanned quickly, saving excessive scaffolding and labour costs.

Thermal imaging inspections are very efficient. It is possible to maintain a high level of safety on an asset or facility. This helps to prevent unexpected downtime and maximize production.

To understand more around this inspection please click HERE.


Part 2 of this topic covers the application from a technical aspect.

Thanks for reading.

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