Investigation Report
Synthetic-Base Drilling Mud Spill During Casing Installation
10-06-2006 01:40 G08035 AT/574 Pollution
- BSEE
- Investigation Report
- Unknown
- Environmental protectionLoss of containmentMechanical failure
- DrillingInspection and maintenance
- Emergency responsePre-use checks
- Upstream oil and gas
- Offshore installation
Summary
An investigation records a synthetic-base drilling mud spill during casing installation on GSF Development Driller I. Control-fluid leakage de-energised a diverter seal, allowing mud into the sea. The report describes temporary containment, planned seal repairs and a requirement for visual inspection before each installation.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Loss of containment; containment loss.
Classifications: Mechanical failure; equipment failure.
Classifications: Drilling; well drilling.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Emergency response; emergency preparedness.
Classifications: Pre-use checks; pre-use inspection.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.