Investigation Report
Synthetic-Base Mud Spill During Drilling and Valve Maintenance
06-23-2005 19:15 G21810 GC/652 Pollution
- BSEE
- Investigation Report
- Unknown
- Environmental protectionLoss of containment
- DrillingInspection and maintenance
- Valve
- Operating and work proceduresOperational supervisionPermit to workSafety communication
- Upstream oil and gas
- Marine waters
Summary
Investigation of a 15-barrel synthetic-base mud spill into the Gulf of Mexico during drilling and valve maintenance. Closing the diverter supply valve reduced slip-joint packer pressure, retracting its seal. The report identifies procedural failures and an absent work permit, and records safety meetings and revised rig-specific maintenance arrangements.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Loss of containment; containment loss.
Classifications: Drilling; well drilling.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Valve; valves.
Classifications: Operating and work procedures.
Classifications: Operational supervision.
Classifications: Permit to work; PTW; work permit.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Marine waters.