Safety Flash
Oil production riser gas ignition
Oil production riser gas ignition
- IMCA
- Safety Flash
- IMCA SF 29/20
- Hot Work and FireHydrocarbon ReleaseManagement of ChangeProcess Safety
- FireRisk management
- Hot work
- Process pipework and pipelines
- Management of changeRisk assessment
- Upstream oil and gas
- Vessel
Summary
During recovery of an oil production riser at an FPSO, hot-work sparks ignited residual gas in the bore. A slit introduced to address another hazard allowed air ingress and a spark path. The flash highlights missed change-related risks in hazard assessments; no injuries or equipment damage were reported.
Classifications: Fire; fire safety.
Classifications: Risk management; risk evaluation.
Classifications: Hot work; welding and cutting.
Classifications: Process pipework and pipelines; process piping.
Classifications: Management of change; MOC; change management.
Classifications: Risk assessment; hazard assessment.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
Hot-work sparks ignited residual gas in a modified oil riser after newly introduced hazards were missed during risk assessment.
IMCA SF 29/20. Themes: hot work and fire, hydrocarbon release, management of change, process safety.