Recent offshore fastener failures and near-misses have raised awareness for tighter specifications and quality control.
Legacy ageing systems and long supply chains increase uncertainties of fastener quality.
There is a need for a systematic acceptance method to reduce future fastener failures.
This project aims to develop a flexible, transparent and easy-to-use reliability analysis tool. The tool will combine laboratory data, failure analyses, a fracture mechanics model, field operational data, and fastener material data to rapidly assess acceptability of fasteners.
- Improved decision making under uncertainty
- Reduced risk
- Ability to prioritize resources
- Flexibility in incorporating new fastener technology.
- The 2012 bolt failure in BOP/LMRP stack resulted in drilling fluid loss
- If the failure had occurred during production, the resulting oil leak would have cost billions of dollars
- GE recalled 10,000 bolts because of the failure. In the Gulf of Mexico alone there are more than 60,000 bolts.