Safety Alert
Near Miss – Equipment Failure at 14,000 PSI
Near Miss – Equipment Failure at 14,000 PSI
- IADC
- Safety Alert
- IADC Alert 06-11
- Pressure Systems
- Mechanical failurePressure systems
- Pressure testing
- Hose
- Exclusion zonesRisk assessment
- Upstream oil and gas
Summary
A near miss during pressure testing of a subsea stack’s choke and kill line caused property damage. Lock-ring threads stripped at 14,000 psi, transferring force to four studs, which failed and allowed a high-pressure hose to detach. Risk assessment had required barricading the hazard area before testing.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Pressure testing; hydrostatic testing; pneumatic testing.
Classifications: Hose; flexible hose.
Classifications: Exclusion zones; red zones; restricted access zones.
Classifications: Risk assessment; hazard assessment.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
IADC Alert 06-11. Themes: pressure systems.