Investigation Report
Drill Pipe Accidentally Sheared While Setting Test Plug
03-11-2015 09:00 G13079 EW 910A Drilling / Equipment Failure
- BSEE
- Investigation Report
- Unknown
- Mechanical failure
- Drilling
- Blowout preventerOperator displays and control interfaces
- Alarm management
- Upstream oil and gas
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Summary
Investigation of accidental drill-pipe shearing on H&P 203 while setting a test plug. A shear-ram contact switch was stuck closed, allowing the rams to fire when the operating button was pressed. The report identifies absent warning provision and records a subsequent control-logic change to flash an indicator for stuck switches.
Classifications: Mechanical failure; equipment failure.
Classifications: Drilling; well drilling.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Operator displays and control interfaces.
Classifications: Alarm management.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.