In oil and gas, petrochemical, chemical and pharmaceutical projects, identifying hazards early is critical for safe and reliable execution. One of the most effective early-stage techniques is the Hazard Identification Study, known as HAZID.
What is HAZID?
HAZID is a workshop-based, qualitative risk analysis technique used to identify potential hazards and threats associated with a process, facility or project at an early stage of design.
Why is HAZID important?
- It identifies credible hazardous scenarios early in the project lifecycle.
- It checks that the process design adequately addresses safety risk.
- It reviews the effectiveness of safeguards already included in the design.
- It supports informed decisions before the design is finalised.
- It reduces the cost of change, because risks addressed early are far cheaper to fix.
When should HAZID be conducted?
- During early project design and concept development.
- Before major design freeze milestones.
- As part of Management of Change (MoC) for modifications or upgrades.
- During major project phases, from early design through to decommissioning.
How is a HAZID conducted?
A successful HAZID needs a multidisciplinary team familiar with the process and its operation, an experienced chairperson to lead the workshop, a scribe to record hazards, consequences, safeguards and actions, and active participation from everyone present so that foreseeable scenarios are not missed. The quality of the outcome depends heavily on the experience of the team.
HAZID compared with other techniques
- HAZID. High-level, broad hazard identification suited to early design stages.
- What-If analysis. A more detailed review of selected scenarios, suitable for smaller or less complex systems.
- HAZOP. A detailed, structured study performed once the design is mature and the operational details are well defined.
Best practice is to conduct HAZID (or What-If analysis) first, then HAZOP at the later design stages.
How EnTech can help
We provide early-stage hazard identification, experienced multidisciplinary facilitation and practical recommendations to reduce risk. Contact us at info@EnTech-Solution.com.