Safety Alert
High concentration of hydrogen sulfide (H2S) in cargo and slop tanks
High concentration of hydrogen sulfide (H2S) in cargo and slop tanks
- HSE
- Safety Alert
- ED2-2023
- Confined SpaceHazardous SubstancesHydrogen Sulphide
- CorrosionHydrogen sulphideMajor accident management
- Inspection and maintenance
- Gas detectorStorage tanks
- Competence and trainingAtmospheric gas testingRisk assessmentSafety communication
- Marine industryUpstream oil and gas
- Vessel
Summary
This HSE safety notice addresses hydrogen sulphide in FPSO and FSU cargo and slop tank ullage spaces, including concentrations beyond standard portable instruments’ measuring limits. It discusses exposure during monitoring and releases, corrosion risks, suitable gas monitoring, revised risk assessments, integrity inspection and crew training.
Classifications: Corrosion; corrosion damage.
Classifications: Hydrogen sulphide; H2S; H₂S; hydrogen sulfide.
Classifications: Major accident management; major accident prevention.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Gas detector; gas monitor; gas detection instrument.
Classifications: Storage tanks; atmospheric tanks.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Atmospheric gas testing; gas testing; atmosphere testing.
Classifications: Risk assessment; hazard assessment.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Vessel; aboard ship; onboard vessel.
ED2-2023. Themes: confined space, hazardous substances, hydrogen sulphide.