LOPA (Layer of Protection Analysis) Training Course

Consultant/Trainer: Jan Pranger

Layer of Protection Analysis (LOPA) is a simplified quantitative tool for assessing risk of scenarios already identified. HAZOP studies often yield a number of scenarios that need further elaboration in order to demonstrate achieving the target risk. LOPA, being the industry standard, is an easy-to-understand tool to identify, assess, challenge and document existing risk reduction conditions and safeguards. It shows whether risk targets are met or exceeded and provides a rational allocation of equipment and personnel.

Participants

All Petrogenium courses can be tailored for awareness/inexperienced staff, for intermediate and for experienced personnel. Furthermore the course can be customized for a specific refinery, plant or unit. The option for post-course consultancy/help-desk support is also available.
Participants may include:

HSEQ professionals
Process/Process Control engineers
Maintenance managers
Production managers
Consultants

Learning Objectives

Understanding LOPA Study Methodology
Participating in, Leading and Organising HAZOP Studies
Revalidating HAZOP Studies
Understanding PFD and SIL of safeguards

Programme

Day 1: Layer of Protection Analysis

Concept of Independent Protection Layers
What is LOPA – Comparison with other risk analysis methods
Purpose and benefits of LOPA
Risk Acceptance Criteria
Options for Risk Reduction – relation to Risk Acceptance Criteria – different types of IPLs
Developing scenarios, severity and linking to the risk criteria
Identifying Initiating Events and Enabling Conditions
Determination of Initiating Event Frequency
Conditional Modifiers
Identifying Independent Protection Layers – Requirements for IPLs
Determining the Mitigated Frequency of Scenarios
Determining scenario risk acceptance
Determination of Probability of Failure on Demand (PFD) and Safety Integrity Level (SIL) of existing safeguards
Determination of further risk reduction, allocation to IPLs