Investigation Report
Wax-Inhibitor Release During Line Flushing and Chemical Injection
07-03-2006 07:30 G17407 GB/668 Pollution
- BSEE
- Investigation Report
- Unknown
- Environmental protectionLoss of containmentMechanical failure
- Fluid transfer
- Process pipework and pipelines
- Energy and process isolation
- Upstream oil and gas
- Marine watersSubsea
Summary
Investigation of a wax-inhibitor release near GB 668-A during line flushing and chemical injection. The report identifies a faulty weld in a subsea umbilical termination assembly as the probable cause. The well was shut in and its injection valve closed; the sheen disappeared later that morning.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Loss of containment; containment loss.
Classifications: Mechanical failure; equipment failure.
Classifications: Fluid transfer; fluid loading; fluid offloading.
Classifications: Process pipework and pipelines; process piping.
Classifications: Energy and process isolation; isolation; energy isolation.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Marine waters.
Classifications: Subsea; underwater worksite.