Investigation Report
Statoil - Mongstad - Investigation of gas leak
Statoil - Mongstad - Investigation of gas leak
- Havtil
- Investigation Report
- Unknown
- CorrosionExplosionHydrogen safetyLoss of containmentRisk management
- Inspection and maintenance
- Gas detectorProcess pipework and pipelines
- Evacuation, escape and rescuePreventive maintenanceRisk assessmentSafety communication
- Downstream and process industries
- Onshore facility
Summary
Investigation of a hydrogen-rich gas leak during inspection at Mongstad’s operating isomerisation plant. Severe external corrosion weakened a drainage pipe, with inadequate maintenance identified as a cause. The report examines inspection risks, conditional fire and explosion consequences, gas-detection deficiencies, manual blowdown, risk communication and evacuation accountability.
Classifications: Corrosion; corrosion damage.
Classifications: Explosion; explosive atmospheres.
Classifications: Hydrogen safety.
Classifications: Loss of containment; containment loss.
Classifications: Risk management; risk evaluation.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Gas detector; gas monitor; gas detection instrument.
Classifications: Process pipework and pipelines; process piping.
Classifications: Evacuation, escape and rescue; EER; escape and rescue.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Risk assessment; hazard assessment.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Downstream and process industries; refining; petrochemicals.
Classifications: Onshore facility; onshore plant.