Investigation Report
Pump Manifold Expelled During Disassembly While Cleaning Mud Tank
09-11-2011 17:00 G12951 SS/227 Required Evaucation - LTA (>3 days) - Other
- BSEE
- Investigation Report
- Unknown
- Line of fireLoss of containmentPressure systems
- Fluid transferInspection and maintenance
- PumpsValve
- Energy and process isolationJob safety analysisLockout and tagoutOperating and work procedures
- Upstream oil and gas
- Offshore installation
Summary
Two workers cleaning a mud tank on Hercules 204 were injured when residual discharge pressure expelled a diaphragm pump manifold, mud and debris during disassembly. The investigation identified absent job safety analysis, lockout/tagout practices, disassembly procedures and a discharge bleed valve. Both workers received medical treatment; Pisces subsequently introduced a temporary-pump safe work practice.
Classifications: Line of fire; struck-by hazards.
Classifications: Loss of containment; containment loss.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Fluid transfer; fluid loading; fluid offloading.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Pumps.
Classifications: Valve; valves.
Classifications: Energy and process isolation; isolation; energy isolation.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Lockout and tagout; LOTO; lockout/tagout.
Classifications: Operating and work procedures.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.