Safety Flash
IOGP: Dropped object with potential for injury – riser release
IOGP: Dropped object with potential for injury – riser release
- IMCA
- Safety Flash
- IMCA SF 12/22
- Dropped ObjectsLifting OperationsMachinery and Equipment
- Dropped objectsMechanical failure
- DrillingLifting operations
- Lifting accessories
- Functional testing
- Upstream oil and gas
- Offshore installation
Summary
This flash describes premature anchor-tool release during recovery of a 16-inch riser from a jack-up drilling unit. The riser dropped approximately 14 metres, damaging the subsea wellhead sealing face without injuries. It reports pull-test and load-rating discrepancies and relays IOGP’s recommendation for continuous pressure energisation of the tool’s slip mechanism.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Drilling; well drilling.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Functional testing; function test.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.
Summary
IOGP have released Safety Alert 334 relating to a dropped object incident during drilling operations on a Jack-up Mobile Offshore Drilling Unit.
IMCA SF 12/22. Themes: dropped objects, lifting operations, machinery and equipment.