Investigation Report
Inadvertent Blind Shear Ram Activation During Casing Pressure Test Preparations
10-23-2012 11:00 00020 ST/67 Shear Ram Activation
- BSEE
- Investigation Report
- Unknown
- Dropped objectsHuman factors
- DrillingPressure testing
- Blowout preventerOperator displays and control interfaces
- Human-centred design
- Upstream oil and gas
Summary
An investigation examines inadvertent blind shear ram activation during preparations for a casing pressure test. A sheared drill-pipe joint dropped 500 feet into the wellbore, without personnel injury. The report discusses control protection, human error and possible lack of experience, alongside planned procedural changes involving two competent people and verbal confirmation.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Human factors; human performance; ergonomics.
Classifications: Drilling; well drilling.
Classifications: Pressure testing; hydrostatic testing; pneumatic testing.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Operator displays and control interfaces.
Classifications: Human-centred design.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.