The scope A major operator had identied the need to continue operation of an 18” condensate pipeline in the North Sea beyond its design life. The operator requested our team to conduct a lifetime extension (LTE) assessment to determine requirements for extending the design life of the pipeline. The solution We completed an assessment of the permissible extension to operating life, utilising the methodology dened in NORSOK ISO/TS 12747 and Y- 002. Our team progressed the assessment through the following stages: 1. Determination of the LTE requirements 2. Assessment of the current integrity of the pipeline system and a review of the operational history, including any changes to the original system design premise 3. Identication of the threats to the pipeline system during extended life 4.

Join for free to read