Safety Alert
Making Up Bit into Bit Sub Results in High Potential Near Miss
Making Up Bit into Bit Sub Results in High Potential Near Miss
- IADC
- Safety Alert
- IADC Alert 04-15
- Line of Fire
- Dropped objectsMechanical failure
- DrillingLifting operations
- Lifting accessories
- Upstream oil and gas
Read at IADCOpens the publisher’s page on iadc.org
Summary
A safety alert describes a near miss during assembly of a bit, bit sub and drill collar. After connections were made using a pipe spinner and rotary tongs, the lifting sub disengaged as the driller raised the blocks. The collar fell across the landing and onto the mud pit, damaging stairs.
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: Upstream oil and gas; oil and gas extraction; upstream petroleum.
IADC Alert 04-15. Themes: line of fire.