Safety Alert
Near Miss – Sticking BOP Control Valve
Near Miss – Sticking BOP Control Valve
- IADC
- Safety Alert
- IADC Alert 01-11
- Machinery and EquipmentProcess Safety
- Dropped objectsMechanical failure
- DrillingInspection and maintenance
- Blowout preventerValve
- Functional testing
- Upstream oil and gas
Summary
An alert describes uncommanded shear-ram closure during remote BOP function testing, which squashed but did not shear a drill-pipe joint. A crewman noticed the closed indicator before the test string was lifted. It also mentions another recent event in which lifting with closed shear rams parted a string, dropping the remainder.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Drilling; well drilling.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Valve; valves.
Classifications: Functional testing; function test.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Summary
An alert concerning a sticking blowout-preventer control valve.
IADC Alert 01-11. Themes: machinery and equipment, process safety.