Safety Alert
Safety Alert 73 - Gas Leak from Subsea BOP Stack While Circulating Out Kick
Safety Alert 73 - Gas Leak from Subsea BOP Stack While Circulating Out Kick
- BSEE
- Safety Alert
- BSEE Safety Alert 73
- Hydrocarbon ReleasePressure SystemsProcess Safety
- Hydrocarbon releaseMechanical failureWell control
- Drilling
- Blowout preventerWellhead
- Evacuation, escape and rescueOperating and work procedures
- Upstream oil and gas
- Offshore installationSubsea
Summary
A semisubmersible rig was evacuated after gas escaped from its subsea BOP stack during kick circulation. A non-conforming ring gasket failed to seal, and escaping fluids damaged a hydraulic line, preventing BOP operation and riser release. The alert records the operator’s planned gasket quality controls and flange-standoff verification procedures.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Mechanical failure; equipment failure.
Classifications: Well control; kick control; loss of well control.
Classifications: Drilling; well drilling.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Wellhead; well head.
Classifications: Evacuation, escape and rescue; EER; escape and rescue.
Classifications: Operating and work procedures.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.
Classifications: Subsea; underwater worksite.
BSEE Safety Alert 73. Themes: hydrocarbon release, pressure systems, process safety.