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Natural Resources Compliance 12 items

Gas Processing Plant HAZOP Study Checklist

Verify the completeness and rigor of a hazard and operability (HAZOP) study for a natural gas processing plant, including node analysis, deviation review, safeguards, and recommendation tracking.

IEC 6188229 CFR 1910.119CCPS Guidelines for HIRAAPI RP 14C

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Study Preparation

  • Is the HAZOP based on current, verified P&IDs and process flow diagrams reflecting as-built conditions? *
  • Is the multidisciplinary study team composed of operations, process, instrumentation, and safety expertise led by a trained facilitator? *
  • Have the process nodes and study boundaries been defined and documented before the sessions? *

Deviation Analysis

  • Were standard guidewords (no, more, less, reverse, as-well-as) systematically applied to each parameter for every node? *
  • Were high-hazard scenarios such as loss of containment, overpressure, and cryogenic release specifically examined? *
  • Were causes and consequences documented for each credible deviation? *

Safeguards & Risk Ranking

  • Were existing safeguards (relief devices, SIS, alarms, procedures) identified for each hazardous deviation? *
  • Was residual risk ranked using a defined risk matrix to prioritize recommendations? *
  • Were independent protection layers assessed for scenarios requiring further review (LOPA)?

Recommendations & Follow-Up

  • Are all recommendations assigned an owner and a target completion date? *
  • Is a tracking system in place to document resolution and closure of each action item? *
  • Is the HAZOP scheduled for revalidation at least every five years or upon significant process change? *

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