Layers of Protection Analysis (LOPA) Training

This training aims to introduce participants to the fundamental principles and practical application of the Layers of Protection Analysis (LOPA) methodology. The course covers the key concepts and techniques used for the semi-quantitative assessment of process risks and provides participants with a structured approach to risk-based decision-making in process safety.

Day 1 – Fundamentals and Methodology

• Process safety and risk assessment approaches
• Introduction to the LOPA methodology
• Relationship between LOPA and other PHA and QRA studies
• Applications and limitations of LOPA
• Risk concepts, risk matrices, and the ALARP principle
• Scenario selection based on PHA outputs
• Consequence and severity assessment
• Identification of initiating events
• Determination of initiating event frequencies

Day 2 – Application and Decision-Making

• Independent Protection Layers (IPLs): concepts and qualification criteria
• Probability of Failure on Demand (PFD)
• LOPA worksheet structure and calculation methodology
• Risk calculation and interpretation
• Practical LOPA workshop and case study
• Common mistakes and best practices