Safety Alert
Blind Shear Door Blown Off BOP Body
Blind Shear Door Blown Off BOP Body
- IADC
- Safety Alert
- IADC Alert 21-07
- Machinery and EquipmentPressure Systems
- Mechanical failurePressure systems
- Inspection and maintenancePressure testing
- Blowout preventer
- Positive retention and reliable securing
- Upstream oil and gas
Summary
A blind shear ram door blew off a blowout preventer during pressure testing at 109 bars, below the planned 570 bars. It was found on an adjacent equipment container. Earlier inspection and ram replacement involved opening the doors; anti-rotation bars were not engaged during reassembly.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Pressure testing; hydrostatic testing; pneumatic testing.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Positive retention and reliable securing.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Summary
The alert concerns a BOP door being forcibly displaced from its body.
IADC Alert 21-07. Themes: machinery and equipment, pressure systems.