Investigation Report
Umbilical Breach Released Methanol and Ethylene Glycol During Abandonment
09-21-2015 17:47 G09184 EB 643 Other Lifting Device
- BSEE
- Investigation Report
- Unknown
- Environmental protectionLoss of containmentMechanical failure
- DecommissioningLifting operationsROV operations
- Remotely operated vehicleWinch
- Upstream oil and gas
- Offshore installationSubsea
Summary
Investigation of an umbilical breach during abandonment at Boomvang SPAR, releasing approximately 41 barrels of methanol and ethylene glycol. The report identifies marine growth trapping centralisers and a suspected cutting impact. Subsurface guides prevented visual confirmation, while the winch lacked load or tension monitoring. ROV observations documented tube damage.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Loss of containment; containment loss.
Classifications: Mechanical failure; equipment failure.
Classifications: Decommissioning; facility dismantling.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: ROV operations; remotely operated vehicle operations.
Classifications: Remotely operated vehicle; ROV; underwater robot.
Classifications: Winch; winches.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.
Classifications: Subsea; underwater worksite.