Investigation Report
Gassco - Kårstø - Investigation into gas leak
Gassco - Kårstø - Investigation into gas leak
- Havtil
- Investigation Report
- Unknown
- Barrier managementHydrocarbon releaseLearning from incidentsMaterial fatigue
- Inspection and maintenancePressure testing
- Gas detectorProcess pipework and pipelinesValve
- Emergency responseIgnition source controlOperating and work proceduresPreventive maintenance
- Downstream and process industries
- Onshore facility
Summary
Investigation of a gas leak at Kårstø attributes instrument-fitting fracture to bending fatigue in an unsupported manometer assembly. The release lasted 9.5 hours without injuries. Materials testing and modelling inform findings on mechanical support, maintenance, incident learning, emergency depressurisation and shutdown arrangements, alongside functioning detection and ignition-control barriers.
Classifications: Barrier management; safety barrier management.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Learning from incidents; incident learning; lessons learnt; lessons learned.
Classifications: Material fatigue; metal fatigue.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Pressure testing; hydrostatic testing; pneumatic testing.
Classifications: Gas detector; gas monitor; gas detection instrument.
Classifications: Process pipework and pipelines; process piping.
Classifications: Valve; valves.
Classifications: Emergency response; emergency preparedness.
Classifications: Ignition source control; ignition prevention.
Classifications: Operating and work procedures.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Downstream and process industries; refining; petrochemicals.
Classifications: Onshore facility; onshore plant.