Safety Alert
Safety Alert 300 - Unplanned Emergency Disconnect Sequence (EDS) of the Lower Marine Riser Package
Safety Alert 300 - Unplanned Emergency Disconnect Sequence (EDS) of the Lower Marine Riser Package
- BSEE
- Safety Alert
- BSEE Safety Alert 300
- Emergency ResponseMachinery and Equipment
- Functional safetyLoss of containment
- Electrical work
- Blowout preventerOperator displays and control interfacesValve
- Energy and process isolationJob safety analysisOperational supervisionPositive retention and reliable securing
- Upstream oil and gas
- Offshore installation
Summary
An unplanned emergency disconnect occurred during powered troubleshooting of a semisubmersible rig’s BOP control panel, activating shear rams and disconnecting the lower marine riser package. Completion fluid escaped through failed-open valves. The alert distinguishes network faults from the activation mechanism and recommends job safety analysis, power disconnection, supervisory consultation and ribbon cable retention.
Classifications: Functional safety; safety instrumented systems; SIS.
Classifications: Loss of containment; containment loss.
Classifications: Electrical work; electrical maintenance.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Operator displays and control interfaces.
Classifications: Valve; valves.
Classifications: Energy and process isolation; isolation; energy isolation.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Operational supervision.
Classifications: Positive retention and reliable securing.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.
BSEE Safety Alert 300. Themes: emergency response, machinery and equipment.