Investigation Report
BOP Stack Fell to Seabed After Mistaken Emergency Disconnect Activation
09-11-2016 08:26 G11075 GC 562 Other - Human Error
- BSEE
- Investigation Report
- Unknown
- Dropped objectsHuman factors
- Drilling
- Blowout preventerOperator displays and control interfaces
- Functional testingOperating and work proceduresOperational supervisionSafety communication
- Upstream oil and gas
- Offshore installation
Summary
An investigation examines mistaken emergency disconnect activation during BOP recovery on Diamond Ocean Blackhornet. The stack fell approximately 2,330 feet to the seabed, without injury or environmental impact. Findings discuss acronym confusion, informal testing and absent pre-job planning; operator plans address notifications, supervision and restrictions on testing with the BOP unlatched.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Human factors; human performance; ergonomics.
Classifications: Drilling; well drilling.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Operator displays and control interfaces.
Classifications: Functional testing; function test.
Classifications: Operating and work procedures.
Classifications: Operational supervision.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.