Safety Flash
Explosion of hose-ball valve assembly
Explosion of hose-ball valve assembly
- IMCA
- Safety Flash
- IMCA SF 03/02
- Competence and TrainingExplosionHand and Finger InjuriesPressure Systems
- Hand and finger injuriesMechanical failurePressure systems
- DrillingFluid transfer
- HoseOperator displays and control interfacesPumpsValve
- Competence and trainingJob safety analysisPressure reliefSafety communication
- Upstream oil and gas
- Onshore facility
Summary
During onshore drilling, mud-pump activation pressurised a filling hose after its ball valve had been closed, injuring a roustabout’s right arm and hand. The investigation identified an unsuitable hose, shared pump controls, absent pressure relief and inadequate training. Corrective actions included separate pump controls, a relief valve, toolbox meetings, JSA and suitable training.
Classifications: Hand and finger injuries; finger injury; hand injury.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Drilling; well drilling.
Classifications: Fluid transfer; fluid loading; fluid offloading.
Classifications: Hose; flexible hose.
Classifications: Operator displays and control interfaces.
Classifications: Pumps.
Classifications: Valve; valves.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Pressure relief; overpressure protection.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Onshore facility; onshore plant.
Summary
A pressurised filling hose and ball valve assembly failed when a pump was inadvertently activated.
IMCA SF 03/02. Themes: competence and training, explosion, hand and finger injuries, pressure systems.