Lifetime Extension

Many offshore and marine assets continue to operate beyond their original design life. Lifetime extension requires a structured engineering basis — demonstrating that structures, systems, and equipment remain fit for purpose under updated environmental assumptions, degradation states, and operational requirements.

7Waves supports operators and asset owners with lifetime extension studies aligned with recognised industry practice, including DNV-RP-C203, API RP 2SIM, and NORSOK standards. Our work covers fatigue and corrosion assessment, updated environmental criteria, structural reliability analysis, and fitness-for-service evaluations for components with identified anomalies or degradation.

Typical scopes include review of historical inspection and monitoring data, re-analysis of primary structures and critical components, identification of required inspection and maintenance programs, and preparation of documentation for class society and regulatory approval. We work across fixed platforms, floating production units, mooring systems, and marine vessels.

Lifetime extension is closely linked to our asset integrity and structural engineering capabilities. 7Waves delivers integrated studies that combine analysis, practical operational insight, and clear recommendations — helping clients make confident decisions about continued operation, upgrade, or decommissioning.