H₂S Awareness
Recognise the hazards of hydrogen sulphide (H₂S) in upstream operations and respond correctly to gas alarms. For everyone who works on or visits sour-service sites.
54m
Total time
4
Competency levels
12
Lessons
What you'll learn
- Describe the key properties of H₂S and explain why the sense of smell must never be relied on as a warning.
- Identify where H₂S may be encountered in upstream operations, including low-lying areas and confined spaces.
- Explain the health effects of H₂S at increasing concentrations and why site exposure limits and alarm setpoints govern.
- Wear and check a personal gas detector correctly and respond to an alarm by moving upwind or crosswind to muster without investigating.
- Distinguish escape sets (EEBD) from SCBA working sets and explain why rescue is only performed by trained SCBA wearers.
Curriculum
Progress through each competency level in order.
1
Awareness
- 3mWhat H₂S is and where you will meet itKnowledge
- 2mHow H₂S harms the bodyKnowledge
- 7mAwareness check: H₂S basicsAssessment
2
Knowledge
- 3mDetecting H₂S: your personal gas monitorKnowledge
- 3mAlarm response: wind, muster and the buddy systemKnowledge
- 8mKnowledge check: detection and alarm responseAssessment
3
Skill
- 3mEscape sets, SCBA and the no-unprotected-rescue ruleKnowledge
- 3mH₂S readiness walk-downAssignment
- 8mSkill check: protection and escape decisionsAssessment
4
Mastery
- 3mPlanning and leading work in sour serviceKnowledge
- 3mDeliver an H₂S toolbox talk and alarm-response walkthroughAssignment
- 8mMastery assessment: leading H₂S safetyAssessment
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