Restoration Models for Quantifying Resilience of FPS Under Mooring Failure

Abstract During its service life, floating production system (FPS) is exposed to various risks, with mooring failure being one of the catastrophic events. Based on the recorded failure data, it is definitely not a single event. Resilience investigation would improve the performance of FPS under adverse events. In order to assess and quantify the resilience of a FPS under mooring failure, it is essential to use reliable capacity restoration metrics and models. So far, there are no restoration models available for FPS under mooring failure, which help quantify the pace of post-failure capacity and functionality gain to facilitate well-informed decision making for reliable prioritization and efficient allocation of resources in restoration work. This paper proposed a reliable restoration model based on the schedule of restoration tasks for mooring repair. The restoration tasks are carefully analyzed and the key influence factor, damage extent is categorized. Proposed restoration models are then illustrated and validated by traditional FPS under mooring failure.