Investigation Report
Methanol and Well-Fluid Release from Valve During Well Flow-Back
02-16-2015 12:40 G16661 MC 941A Pollution / Production / Equipment Failure
- BSEE
- Investigation Report
- Unknown
- Environmental protectionLoss of containmentMechanical failure
- Inspection and maintenancePressure testing
- Valve
- Emergency responseFunctional testingJob safety analysisOperating and work procedures
- Upstream oil and gas
- Marine watersOffshore installation
Summary
Investigation of a methanol and well-fluid release from a compact valve on the Titan platform during Telemark well flow-back. Findings identify incorrect flange selection, uneven bolt torquing and failures to follow installation procedures. The report documents emergency shutdown, spill notification and subsequent valve inspection and pressure testing.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Loss of containment; containment loss.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Pressure testing; hydrostatic testing; pneumatic testing.
Classifications: Valve; valves.
Classifications: Emergency response; emergency preparedness.
Classifications: Functional testing; function test.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Operating and work procedures.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Marine waters.
Classifications: Offshore installation; offshore platform; offshore rig.