Investigation Report
Oil and Gas Release After Threaded Ball Valve Separation
07-30-2011 15:00 G27036 EC/34 Pollution - Other
- BSEE
- Investigation Report
- Unknown
- Environmental protectionHydrocarbon releaseLine of fireMechanical failurePressure systems
- Process pipework and pipelinesValve
- Job safety analysisManagement of changeOperating and work proceduresPollution reporting
- Upstream oil and gas
- Marine watersOffshore installation
Summary
Investigation of an oil and gas release at an unmanned Gulf of Mexico platform after a threaded ball valve separated. The report examines mismatched pressure ratings, a coupon extractor becoming a projectile, deficiencies in job safety analysis and management of change, installation instructions, and failure to report the pollution incident.
Classifications: Environmental protection; environmental safety; pollution prevention.
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: Process pipework and pipelines; process piping.
Classifications: Valve; valves.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Management of change; MOC; change management.
Classifications: Operating and work procedures.
Classifications: Pollution reporting.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Marine waters.
Classifications: Offshore installation; offshore platform; offshore rig.