Investigation Report
Manifold Assembly Ejected During Well Flowline Pressure Bleeding
01-17-2008 08:45 G02051 EC/286 Required Evacuation LTA (>3 days)
- BSEE
- Investigation Report
- Unknown
- Hand and finger injuriesLine of fireMechanical failurePressure systems
- Process pipework and pipelinesValve
- Pressure relief
- Upstream oil and gas
- Offshore installation
Summary
An investigation examines a severe right-hand injury during bleeding of approximately 1100 psi from a well flowline. A poorly designed manifold rotated, disconnected and ejected its upper assembly. Recommendations address discharge forces, manifold construction, controllable valves and use of the platform vent scrubber where designed for pressure relief.
Classifications: Hand and finger injuries; finger injury; hand injury.
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: Pressure relief; overpressure protection.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.