Investigation Report
Electrical Disruption and Emergency Riser Disconnection with Drilling Fluid Loss
11-05-2006 06:57 G09867 MC/777 Pollution - Synthetic Oil Base Mud (SOBM)
- BSEE
- Investigation Report
- Unknown
- Electrical safetyEnvironmental protectionFireLoss of containmentLoss of station keeping
- PumpsSwitchgear
- Emergency responseFire protection
- Upstream oil and gas
- Vessel
Summary
An investigation records harmonic-filter failure, a small fire and electrical supply disruption aboard a drilling vessel. Thrusters went offline, prompting emergency riser disconnection and loss of synthetic-base drilling fluid. Power and position were subsequently restored. The cause of essential-services circuit-breaker tripping remained under investigation.
Classifications: Electrical safety; electrical hazards.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Fire; fire safety.
Classifications: Loss of containment; containment loss.
Classifications: Loss of station keeping; drive-off; drift-off.
Classifications: Pumps.
Classifications: Switchgear; switch gear.
Classifications: Emergency response; emergency preparedness.
Classifications: Fire protection; fire suppression; fire detection.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Vessel; aboard ship; onboard vessel.