Sensing and Understanding Fatigue Lifetime of New and Converted FPSOs

From the very beginning of offshore exploration it has been well-known that permanently moored offshore installations are continuously subjected to sea actions. However, this has not prevented many FPSOs suffering from fatigue damage and costly repairs. Often operators are surprised by such failures because hull integrity monitoring systems are not installed. In addition, industry records show that many structural monitoring projects have floundered because they did not have effective data processing and interpretation tools. The paper describes how to change this situation.

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