Investigation Report
Synthetic Base-Fluid Spill During Riser Displacement
07-09-2020 15:15 G08496 MC 657 Pollution
- BSEE
- Investigation Report
- Unknown
- Environmental protectionHuman factorsLoss of containment
- Fluid transfer
- PumpsValve
- Job safety analysisSafety communication
- Upstream oil and gas
- Marine watersVessel
Summary
BSEE investigates a 57-barrel synthetic base-fluid spill during riser displacement aboard Helix Q4000 at Mississippi Canyon 657. Open standpipe and bleed-off valves enabled the discharge. Findings identify incomplete physical valve verification, missed volume and pressure discrepancies, and failure to use the task-specific job safety analysis.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Human factors; human performance; ergonomics.
Classifications: Loss of containment; containment loss.
Classifications: Fluid transfer; fluid loading; fluid offloading.
Classifications: Pumps.
Classifications: Valve; valves.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Marine waters.
Classifications: Vessel; aboard ship; onboard vessel.