Report
Report - Montara investigation: Volume three
Report - Montara investigation: Volume three
- NOPSEMA
- Report
- Hydrocarbon ReleaseIncident InvestigationProcess SafetyStructural and Asset Integrity
- Barrier managementHydrocarbon releaseIncident investigationWell integrity
- DrillingWell abandonmentWell intervention
- Blowout preventer
- Management of changeRisk assessmentWell-barrier testing
- Upstream oil and gas
Summary
Third volume of an expert witness investigation into the Montara hydrocarbon release. It reconstructs the operational timeline, charts H1-ST1 integrity during construction, suspension and re-entry, and evaluates barrier acceptance and verification. Technical responses examine corrosion caps, annular seals, cement isolation, change management and opportunities for risk assessment.
Classifications: Barrier management; safety barrier management.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Incident investigation; accident investigation.
Classifications: Well integrity; well life cycle integrity.
Classifications: Drilling; well drilling.
Classifications: Well abandonment; plug and abandonment; P&A.
Classifications: Well intervention; workover; well servicing.
Classifications: Blowout preventer; BOP; blow-out preventer.
Classifications: Management of change; MOC; change management.
Classifications: Risk assessment; hazard assessment.
Classifications: Well-barrier testing; well barrier verification.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Summary
Presents timeline, well integrity assessments and expert witness findings concerning the Montara blowout.
Themes: hydrocarbon release, incident investigation, process safety, structural and asset integrity.