Investigation Report
COSL Drilling - COSLInnovator - Investigation of incident with fatal consequences
COSL Drilling - COSLInnovator - Investigation of incident with fatal consequences
- Havtil
- Investigation Report
- Unknown
- Barrier managementRegulation and legislationStructural and asset integrityVessel flooding and foundering
- Emergency responseEvacuation, escape and rescueFlood containment and watertight integrity
- Upstream oil and gas
- Offshore installation
Summary
Investigation of the fatal wave-impact incident on COSLInnovator examines air-gap calculations, hydrodynamic model testing and design decisions concerning horizontal wave slamming. It assesses accommodation damage, window attachments, water ingress and emergency mustering. The report identifies design-basis shortcomings while retaining uncertainty about the damaging wave and incident-time motions.
Classifications: Barrier management; safety barrier management.
Classifications: Regulation and legislation; safety legislation; regulatory requirements.
Classifications: Structural and asset integrity; asset integrity; structural integrity.
Classifications: Vessel flooding and foundering; water ingress.
Classifications: Emergency response; emergency preparedness.
Classifications: Evacuation, escape and rescue; EER; escape and rescue.
Classifications: Flood containment and watertight integrity.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.