Safety Alert
Safety Alert 22 - Cap Blows Off of Choke Body, Man Burned
Safety Alert 22 - Cap Blows Off of Choke Body, Man Burned
- BSEE
- Safety Alert
- BSEE Safety Alert 22
- Line of FirePressure Systems
- FireHydrocarbon releaseMechanical failurePressure systems
- Inspection and maintenance
- Valve
- Preventive maintenance
- Upstream oil and gas
- Offshore installation
Summary
A well-choke cap failure on a production platform released natural gas that ignited, burning one person. Investigation found worn and eroded acme threads, with similar deterioration on other chokes. Emergency shutdown limited the fire. The operator planned regular thread cleaning, inspection, gauging, replacement where necessary and protective lubrication.
Classifications: Fire; fire safety.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Valve; valves.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.
Summary
The alert concerns a choke-body cap being ejected under pressure and burning a worker.
BSEE Safety Alert 22. Themes: line of fire, pressure systems.