Many platforms in the Dutch sector of the North Sea are designed for a 20, 30, or 40-year service life. To be re-certified, the platform must pass a check on the structural integrity.
Since 2013, Dutch Offshore Platform operators have relied on Conbit’s structural engineers to conduct these extensive analyses.
When the owner of an offshore platform wants to extend the production time beyond the designed life of the platform, he has to convince himself and a third-party certification body of the platform’s structural integrity. As part of this re-certification, engineers perform a structural analysis.
For this particular task, SACS software is used. All the major events, like collisions or modifications, are taken into account. In this manner, the in-place situation is analyzed together with the fatigue analysis. Also, Metocean data are integrated into the analysis to get a good picture of the integrity status during the certified period. The investigation is complete after preparing a basis for structural inspection and inspection plan, which were also carried out in the Conbit office.