Investigation Report
Statoil - Heimdal - Investigation of a hydrocarbon leak
Statoil - Heimdal - Investigation of a hydrocarbon leak
- Havtil
- Investigation Report
- Unknown
- Barrier managementHuman factorsHydrocarbon releaseLearning from incidentsPressure systems
- Inspection and maintenance
- Operator displays and control interfacesProcess pipework and pipelinesPumpsValve
- Fire protectionOperating and work proceduresPermit to workRisk assessment
- Upstream oil and gas
- Offshore installation
Summary
Investigation of a hydrocarbon leak during emergency shutdown valve testing on Heimdal. A closed, 16-bar-rated valve was exposed to 129 bar, causing flange-gasket failure. The report examines deficient design, risk assessment and procedures, alongside control-room interfaces, firewater capacity, competence and organisational learning.
Classifications: Barrier management; safety barrier management.
Classifications: Human factors; human performance; ergonomics.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Learning from incidents; incident learning; lessons learnt; lessons learned.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Operator displays and control interfaces.
Classifications: Process pipework and pipelines; process piping.
Classifications: Pumps.
Classifications: Valve; valves.
Classifications: Fire protection; fire suppression; fire detection.
Classifications: Operating and work procedures.
Classifications: Permit to work; PTW; work permit.
Classifications: Risk assessment; hazard assessment.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.