Safety Flash
Stored pressure: Corrosion coupon plug ejected from pressurized pipeline
Stored pressure: Corrosion coupon plug ejected from pressurized pipeline
- IMCA
- Safety Flash
- IMCA SF 18/16
- Hydrocarbon ReleaseInspection and MaintenanceLine of FirePressure Systems
- Hydrocarbon releaseLine of fireMechanical failurePressure systems
- Inspection and maintenance
- Process pipework and pipelines
Summary
A corrosion coupon plug was expelled at high velocity during retrieval from a crude oil pipeline pressurised to 103 bar, releasing oil without injuries. The investigation identified worn access-fitting threads as the most likely cause, noting nearly thirty years of service and over 140 retrieval and installation cycles.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Line of fire; struck-by hazards.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Process pipework and pipelines; process piping.
Summary
Stored pressure: Corrosion coupon plug ejected from pressurised pipeline
IMCA SF 18/16. Themes: hydrocarbon release, inspection and maintenance, line of fire, pressure systems.