Investigation Report
2023-001 GC40 BSEE Panel Investigation Final Report GC40
2023-001 GC40 BSEE Panel Investigation Final Report GC40
- BSEE
- Investigation Report
- 2023-001
- Unknown
- Hydrocarbon releaseMechanical failureStructural and asset integrity
- Inspection and maintenanceROV operations
- Process pipework and pipelines
- Alarm managementIndependent audit and verificationManagement of changeStop-work authority
- Upstream oil and gas
- Subsea
Summary
BSEE investigates a subsea flowline jumper failure involving hydrogen embrittlement of four flange studs and an estimated 479-barrel oil release. Metallurgical testing and finite element analysis examine material suitability and loading. Findings address procurement omissions, quality assurance, management of change and leak-detection limitations, with recommendations for operators to consider.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Mechanical failure; equipment failure.
Classifications: Structural and asset integrity; asset integrity; structural integrity.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: ROV operations; remotely operated vehicle operations.
Classifications: Process pipework and pipelines; process piping.
Classifications: Alarm management.
Classifications: Independent audit and verification.
Classifications: Management of change; MOC; change management.
Classifications: Stop-work authority; stop work; stop-work intervention.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Subsea; underwater worksite.
2023-001.