Investigation Report
Condensate Release During Plug and Abandonment and Salvage Operations
11-13-2008 01:00 00133 GI/47 Pollution
- BSEE
- Investigation Report
- Unknown
- Environmental protectionHydrocarbon releaseMechanical failureWell integrity
- Inspection and maintenanceWell abandonment
- Wellhead
- Pollution reporting
- Upstream oil and gas
- Marine waters
Summary
Investigation of a condensate pollution event during plug and abandonment and salvage operations at Grand Isle Block 47. The report attributes the release to wellhead mechanical failure, rather than the initially reported impact. It records containment attempts, wellhead installation and testing, subsequent annulus leakage, and differing spill-volume estimates.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Mechanical failure; equipment failure.
Classifications: Well integrity; well life cycle integrity.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Well abandonment; plug and abandonment; P&A.
Classifications: Wellhead; well head.
Classifications: Pollution reporting.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Marine waters.