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Risk analysis

HAZOP
Risk and operability analysis.

Identify potential accident scenarios and secure your industrial processes using the HAZOP method.

Étude HAZOP réalisée sur site industriel

Risk analysis

Why carry out a HAZOP study?

The HAZOP method (Hazard and Operability Study) is one of the most widely used approaches for assessing operational risks in complex industrial processes. It is based on a structured analysis of deviations in operating parameters that could lead to hazardous situations or performance losses.

With a HAZOP study, you benefit from:

  • Systematic identification of risk scenarios
  • Reduction of incidents, accidents and production shutdowns
  • Compliance with regulatory requirements (ICPE, SEVESO)
  • Methodology recognized by authorities for hazard studies

numtech expertise

What are the objectives of a HAZOP study?

  • Analyze deviations in key parameters (pressure, temperature, flow rate, etc.)
  • Determine probable causes: human errors, failures, technical defects
  • Evaluate consequences on safety, environment, equipment and production
  • Risk and operability analysis.
  • Propose corrective or preventive actions to enhance installation safety
Tableau d’analyse HAZOP avec déviations et causes

Process

How does a HAZOP study work?

Schéma du déroulement d’une étude HAZOP

Process

How does a HAZOP study proceed?

  1. 1
    Team setup
    Form a multidisciplinary team of experts in process, safety, maintenance, operations...
  2. 2
    Scope definition
    Break down the process into sub-systems or analyzable sections called HAZOP nodes.
  3. 3
    Parameter identification
    List critical parameters to be analyzed: temperature, pressure, flow rate, concentration, etc.
  4. 4
    Deviation identification
    Use HAZOP guidewords (more, less, none, other than…) to identify deviation scenarios.
  5. 5
    Analysis of effects and causes
    Analyze possible causes and consequences on safety, environment, equipment or production.
  6. 6
    Assessment of existing safeguards
    Check existing safety measures and identify any shortcomings or failures.
  7. 7
    Definition of corrective actions
    Define recommended actions to address gaps and improve safety, then plan their implementation.
  8. 8
    Follow-up and final report
    Write a clear and structured report, including a follow-up plan, compliant with regulations and client expectations.
Illustration des secteurs concernés par HAZOP

use case

Our experts at your side

We conduct HAZOP studies for a wide range of industrial processes. Our services notably cover the following sectors:

Each assignment is tailored to the specific features of your facilities and aims to enhance the safety, reliability, and regulatory compliance of your processes.

They trust us:

F. A. Q

Do you have any questions?

FAQ sur la méthodologie HAZOP
FMEA focuses on failures of equipment or components, whereas HAZOP studies deviations in the operation of an entire process. These two methods are often complementary.
Yes, HAZOP is expected as part of the regulatory hazard studies for SEVESO or ICPE classified installations.
A detailed report including: deviation scenarios, their causes and consequences, existing barriers, and recommended actions, ranked by criticality.
It depends on the process complexity: from a few days to several weeks depending on the scope and number of HAZOP nodes analyzed.

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