Investigation Report
Casing Joint Falls Across Rig Floor During Casing Slip Troubleshooting
12-20-2020 03:08 G16764 GC 609 Lifting - Elevator
- BSEE
- Investigation Report
- Unknown
- Dropped objectsHuman factors
- DrillingLifting operations
- Lifting accessoriesOperator displays and control interfaces
- Competence and trainingExclusion zonesFunctional testingSafety communication
- Upstream oil and gas
- Vessel
Summary
Investigation of a casing joint falling across the Deepwater Invictus drillship’s rig floor during troubleshooting of casing slips. A premature elevator-opening command released the joint when its weight was removed. No injuries were reported. The report examines restricted-zone entry, equipment testing, operator training and a proposed dual-operator opening arrangement.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Human factors; human performance; ergonomics.
Classifications: Drilling; well drilling.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Operator displays and control interfaces.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Exclusion zones; red zones; restricted access zones.
Classifications: Functional testing; function test.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Vessel; aboard ship; onboard vessel.