Safety Alert
Blocks Drop to Rig Floor
Blocks Drop to Rig Floor
- IADC
- Safety Alert
- IADC Alert 05-23
- Dropped ObjectsLifting Operations
- Dropped objectsMechanical failure
- Drilling
- Wire rope
- Exclusion zones
- Upstream oil and gas
Read at IADCOpens the publisher’s page on iadc.org
Summary
A drilling safety alert describes blocks falling to the rig floor during withdrawal of drill pipe to change the BHA. A removed make-up cable dropped beside the drawworks, and its thimbled eye obstructed the brake linkage without the driller’s knowledge. No injuries occurred because personnel had cleared the floor.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Drilling; well drilling.
Classifications: Wire rope; steel wire rope.
Classifications: Exclusion zones; red zones; restricted access zones.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
IADC Alert 05-23. Themes: dropped objects, lifting operations.