Investigation Report
Casing Drop and Crane Line Failure During Well Abandonment
08-02-2009 09:30 G02899 EI/243 Other - Casing Jack
- BSEE
- Investigation Report
- Unknown
- Dropped objectsMechanical failure
- Lifting operationsWell abandonment
- CraneHoseWire rope
- Machine guardingOperational supervision
- Upstream oil and gas
Summary
During well abandonment, casing-jack slips damaged a hydraulic fitting, releasing pressure and allowing casing to drop several feet. The attached crane auxiliary line broke, dropping its headache ball onto the deck. The investigation identifies inadequate fitting protection and crane-connection timing, with no injuries or pollution reported.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Well abandonment; plug and abandonment; P&A.
Classifications: Crane; cranes.
Classifications: Hose; flexible hose.
Classifications: Wire rope; steel wire rope.
Classifications: Machine guarding; machinery guards; machine guards.
Classifications: Operational supervision.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.