Non-intrusive inspections (NII) shall not increase asset risk.
A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. The pressure differential is dangerous and fatal accidents have occurred in the history of pressure vessel development and operation.
Consequently, pressure vessel design, manufacture and operation are regulated by engineering authorities backed by legislation.
Statutory internal inspections often drive facility or system shutdowns. Where possible, Next Advanced Solutions substitutes intrusive internal visual inspections with non-intrusive inspections to achieve the following benefits:
- Increasing production uptime (shutdown only when needed).
- Eliminating the impact on equipment caused by process shutdown and start-up.
- Reducing risk to personnel by eliminating the need for confined space entry.
- Eliminating mechanical damage to internal protective surfaces (coating).
Replacing internal visual inspection (IVI) with non-intrusive inspection (NII) requires adequate technical justification. Next Advanced Solutions complies with DNV recommended practice (DNV-RP-G103) to determine the applicability of NII methods.
Next Advanced Solutions’ multidisciplinary team of leading specialists provide detailed assessments and results for confident justification and execution of NII. Furthermore, our asset integrity management system includes a guidance system to determine the feasibility of NII, as well as NII life cycle management.
NII feasibility depends on
vessel configuration and the type and extent of degradation mechanisms expected.
Substituting IVI for NII should not lead to increased risk,
hence careful considerations are required.