Safety Flash
Negative pressure injury to a diver
Negative pressure injury to a diver
- IMCA
- Safety Flash
- IMCA SF 12/01
- Control of WorkDivingIsolationPressure Systems
- Hand and finger injuriesLine of firePressure systems
- Diving operations
- Process pipework and pipelines
- Operating and work proceduresRisk assessment
- Upstream oil and gas
- Subsea
Summary
A diver installing pipe spools on a subsea manifold at 140 msw suffered arm and thumb injuries when an unvented wooden blind apparently imploded during removal. The flash describes overlooked protector replacement, incomplete risk-assessment actions and departures from safe working practices, highlighting uncontrolled positive and negative pressure when opening subsea pipework.
Classifications: Hand and finger injuries; finger injury; hand injury.
Classifications: Line of fire; struck-by hazards.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Diving operations; diving; commercial diving.
Classifications: Process pipework and pipelines; process piping.
Classifications: Operating and work procedures.
Classifications: Risk assessment; hazard assessment.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Subsea; underwater worksite.
Summary
A diver suffered serious injuries when an unvented subsea blind imploded during removal from pipework.
IMCA SF 12/01. Themes: control of work, diving, isolation, pressure systems.