Investigation Report
Underwater Explosion During Anode Relocation for Pipeline-Riser Installation
11-23-2006 19:50 G04240 ST/300 Required Evacuation - LTA > 3 days - Explosion
- BSEE
- Investigation Report
- Unknown
- ExplosionOxygen enrichment
- Diving operationsHot work
- Evacuation, escape and rescue
- Upstream oil and gas
- Subsea
Summary
An investigation describes an underwater explosion while a diver relocated an anode for pipeline-riser installation at South Timbalier 300. Striking an arc preceded the explosion; the report attributes it to an apparent oxygen build-up in the anode cavity. The unconscious diver was recovered, treated and evacuated. No recurrence-prevention recommendations were reported.
Classifications: Explosion; explosive atmospheres.
Classifications: Oxygen enrichment; oxygen enriched atmosphere.
Classifications: Diving operations; diving; commercial diving.
Classifications: Hot work; welding and cutting.
Classifications: Evacuation, escape and rescue; EER; escape and rescue.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Subsea; underwater worksite.