Process safety (HAZOP, HAZAN, HAZID)

duration: 5 days
format: Virtual course
level: Intermediate
accreditation: CPD


This course provides the knowledge necessary to acquire a consistent approach to achieve an efficient development to effectively manage Process Safety in production facilities.
This includes:
A hazard and operability (Hazop) study is a design review technique used for hazard identification, and for the identification of design deficiencies that may give rise to operability problems. It is a structured and systematic examination of a planned or existing process or operation in order to identify and evaluate problems that may represent risks to personnel or equipment or prevent efficient operation. Hazop is most commonly applied to systems that transfer or process hazardous substances, or activities where the operations involved can be hazardous and the consequences of failure to control hazards may be significant in terms of damage to life, the environment or property.
Hazid is one of the best-known methodologies to identify potential hazards because it provides a structured approach to identify hazards, potential undesirable consequences, and evaluate the severity and likelihood of what is identified. Hazid involves machine or equipment designers, management and end-users, and ensures a full identification of hazards and safeguard procedures in a workplace.
A hazard analysis considers system state (e.g. operating environment) as well as failures or malfunctions. Hazan is the identification of undesired events that lead to the materialization of a hazard, the analysis of the mechanisms by which these undesired events could occur, and, usually, the estimation of the consequences.

The course is designed for:

  • All market industry segments and all levels as Workplace Risk Assessment can be used by ALL, including:
  • General Managers,
  • Project Managers,
  • Process, Chemical,
  • Mechanical Engineers,
  • Loss Prevention & Security,
  • Operating Staff and employees in general.

Key learning objectives

  • Upon completion of the course, participants will be able to:
  • Describe standards and participate in the deterministic methods of safety engineering,
  • Explain the different elements of process safety management and identify strategies for implementation,
  • Identify and describe the safety-critical elements in the production process, explain the most relevant features of asset integrity,
  • Define roles and responsibilities applicable to process safety management,
  • Establish process safety management objectives.

Day 1
Fundamentals of process safety

  • Concept of process safety.
  • Historical approach.
  • Process safety roles and responsibilities.
  • Safe design principles. Introduction to inherently safer design.
  • Concept of loss of containment.
  • Fundamentals of flammability and fluid behavior.
  • Major accident hazards.
  • Introduction to bowtie diagram representation.

Day 2
Process safety regulations

  • Identification and compliance with legislation and industry standards.
  • Best practices standards: OSHA, CCPS.
  • Relationship with other benchmarking standards: offshore safety case regulation, SEVESO III.

Process safety culture

  • Safety leadership and commitment.
  • Safety culture.
  • Workforce involvement.
  • Stakeholders identification and communication.

Day 3
Process hazard identification and analysis

  • Process safety information: products, technology, equipment and human intervention.
  • Hazards related to typical Oil & Gas process.
  • Introduction to HAZOP methodology.
  • Methodology for carrying out a HAZID.
  • HAZID application.
  • HAZAN application
  • Node identification.
  • Guidewords.
  • HAZOP register matrix.
  • Group management.
  • Introduction to What-if methodology.
  • HAZOP, HAZID and HAZAN exercise.
  • Introduction to Failure Mode and Equipment Analysis (FMEA study).
  • Introduction to fault tree analysis.
  • Plant layout. Introduction to consequence analysis.

Day 4
Operating procedures

  • Definition of operating phase steps and limits.
  • Process monitoring.
  • Process control system elements.
  • Safe isolation of equipment.
  • Pre-startup safety review.
  • Operational readiness.
  • Case study: Buncefield.

Asset integrity

  • Safety critical equipment.
  • Equipment deficiencies and quality assurance.
  • Definition and functions of safety systems.
  • Control of ignition sources.
  • Electrical equipment regulations.
  • Control of hydrocarbon inventory.
  • Flares and vents.
  • Introduction to safety instrumented systems.
  • Fire & gas detection systems.
  • Passive and active fire protection.
  • Maintenance procedures and training.
  • Introduction to corrosion.
  • Inspection and testing planning and execution.

Day 5
Organizational elements

  • Safe work practices.
  • Permit to work system.
  • Management of change.
  • Downgraded situations.
  • Emergency response planning.
  • Escape, evacuation and rescue.
  • HSE management of contractors: evaluation and performance monitoring.
  • Workforce training.
  • Training matrix development.
  • Human factors in process control.
  • Alarm systems.
  • Human error in process plants.
  • Case study: platform P-36.

Continuous improvement elements

  • Undesired events reporting and investigation.
  • Analysis strategies.
  • Management system audit.
  • Process Safety Key Performance indicators. API RP 754.
  • IOGP Process safety reporting scope.
  • Management review.
  • Case study: Piper Alpha.

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