Safety Alert
Safety Alert 284 - Diverter Flow Event
Safety Alert 284 - Diverter Flow Event
- BSEE
- Safety Alert
- BSEE Safety Alert 284
- Pressure SystemsProcess Safety
- Human factorsWell control
- Blowout preventerOperator displays and control interfacesProcess pipework and pipelinesValve
- Human-centred designOperating and work proceduresWell-barrier testing
- Upstream oil and gas
Summary
A semi-submersible completion operation experienced expanding formation gas in the riser and diverter discharge. The investigation established no specific cause, identifying possible packer communication, omitted reverse circulation and fluid-monitoring difficulties. Recommendations address brine pills, pressure monitoring, BOP sweeping, consideration of further circulation or bullheading, piping documentation and display scaling.
Classifications: Human factors; human performance; ergonomics.
Classifications: Well control; kick control; loss of well control.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Operator displays and control interfaces.
Classifications: Process pipework and pipelines; process piping.
Classifications: Valve; valves.
Classifications: Human-centred design.
Classifications: Operating and work procedures.
Classifications: Well-barrier testing; well barrier verification.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Summary
The alert concerns an unexpected flow event involving a well diverter system.
BSEE Safety Alert 284. Themes: pressure systems, process safety.