Safety Alert
Safety Alert 221 - Hanger Failure and Ejection Lead to Well Control Incident
Safety Alert 221 - Hanger Failure and Ejection Lead to Well Control Incident
- BSEE
- Safety Alert
- BSEE Safety Alert 221
- Line of FirePressure SystemsProcess Safety
- Barrier managementLine of fireMechanical failurePressure systemsWell control
- Well intervention
- Blowout preventerWellhead
- Positive retention and reliable securing
- Upstream oil and gas
Summary
During a workover, hanger hold-down pins sheared at 6,150 psi, ejecting the hanger and tubing. Investigation identified inadequate pin engagement caused by a design flaw. The alert identifies affected Cameron products, recommends multiple well barriers and advises operators to consider shear rams for wells presenting unusual control problems.
Classifications: Barrier management; safety barrier management.
Classifications: Line of fire; struck-by hazards.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Well control; kick control; loss of well control.
Classifications: Well intervention; workover; well servicing.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Wellhead; well head.
Classifications: Positive retention and reliable securing.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
BSEE Safety Alert 221. Themes: line of fire, pressure systems, process safety.