Investigation Report
Statoil - Mongstad - Investigation into steam leak
Statoil - Mongstad - Investigation into steam leak
- Havtil
- Investigation Report
- Unknown
- CorrosionLoss of containmentMechanical failureNoisePressure systems
- Inspection and maintenance
- Process pipework and pipelinesValve
- Contractor managementEnergy and process isolationNon-destructive testingRisk assessment
Summary
This investigation examines the Mongstad steam leak of November 2012, linking pipe fracture to corrosion-related wall thinning. It identifies weaknesses in corrosion monitoring, operational data, inspection follow-up, contractor oversight and repair risk assessment. Valve isolation stopped the leak after 12 minutes; nobody was seriously injured.
Classifications: Corrosion; corrosion damage.
Classifications: Loss of containment; containment loss.
Classifications: Mechanical failure; equipment failure.
Classifications: Noise; occupational noise.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Process pipework and pipelines; process piping.
Classifications: Valve; valves.
Classifications: Contractor management; contractor assurance.
Classifications: Energy and process isolation; isolation; energy isolation.
Classifications: Non-destructive testing; NDT; non-destructive examination; NDE.
Classifications: Risk assessment; hazard assessment.