DNV—GL — IN—SERVICE VERIFICATION OF OIL AND GAS ASSETS

The present service specification released by DNV GL classification society is aiming to provide a proper methodology used for assurance of the safety and reliability of various oil and gas assets through the management of the integrity of the major safety and environmental accident barriers during the in-service phase. In-service verification of these assets would normally include their verification in the course of the operation and also the verification relating to the changes in the materials or during the repairs/modifications during the lifetime of the particular asset.

The opening part of the document provide short introduction to the subject, followed by the references including DNV GL and external resources, definitions and abbreviations, and concepts of the verification process including barrier management mentioned above, verification scheme and associated activities, performance requirements etc.

The next chapter is devoted to the methodology of the verification process, planning, execution and reporting of verification and management of change etc. The rest of the document is dealing with the operator responsibilities, effective verification schemes, review and audit, and many other important aspects. There are several appendices with supplementary information.