Investigation Report
Equinor - Hammerfest LNG - Order after investigation of hydrates in safety valves
Equinor - Hammerfest LNG - Order after investigation of hydrates in safety valves
- Havtil
- Investigation Report
- Unknown
- Barrier managementPressure systemsProcess safetyRisk management
- Inspection and maintenance
- Process pipework and pipelinesValve
- Ignition source controlPressure reliefPreventive maintenanceRisk assessment
- Downstream and process industries
- Onshore facility
Summary
Investigation of prolonged overpressure-barrier impairments at Hammerfest LNG on Melkøya. Hydrates prevented some pressure safety valves from functioning, while the affected total remained unknown. The report examines heat tracing and insulation, maintenance and testing interfaces, delayed risk assessment and management follow-up, and corrective measures installed during plant shutdown.
Classifications: Barrier management; safety barrier management.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Process safety; major accident hazards.
Classifications: Risk management; risk evaluation.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Process pipework and pipelines; process piping.
Classifications: Valve; valves.
Classifications: Ignition source control; ignition prevention.
Classifications: Pressure relief; overpressure protection.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Risk assessment; hazard assessment.
Classifications: Downstream and process industries; refining; petrochemicals.
Classifications: Onshore facility; onshore plant.