Investigation Report
Pipeline Rupture Following Closure of Incoming Boarding Valve
12-05-2006 18:00 G01220 EI/158 Required Evacuation - LTA > 3 days - Fire
- BSEE
- Investigation Report
- Unknown
- ExplosionFunctional safetyHydrocarbon releasePressure systems
- Process pipework and pipelinesValve
- Upstream oil and gas
- Offshore installation
Summary
Investigation of a pipeline rupture at MP 69 Echo following closure of an incoming boarding valve at MP 69 Delta. Pinned-open safety-valve relays prevented the E-1 well from shutting in, causing pipeline overpressure. The report examines safety-panel logic, piping failure analysis and damage to platform equipment and structure.
Classifications: Explosion; explosive atmospheres.
Classifications: Functional safety; safety instrumented systems; SIS.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Process pipework and pipelines; process piping.
Classifications: Valve; valves.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.