(167b) Preparing for a Successful HAZOP/LOPA (Making or Breaking Quality & Efficiency)

Although many factors can affect the quality and efficiency of a Hazard and Operability (HAZOP) Study or Layer of Protection Analysis (LOPA), one of the most important influences on the outcome is preparation. Contemporary HAZOP/LOPA guidebooks, such as the ones published by the Center for Chemical Process Safety (CCPS), have long dispelled the notion that a facilitator merely needs to show up and ask "blind" questions. Beyond facilitator preparation, given that each team and each evaluation is unique, thought must be given to ensuring that preparation is focused and tailored to the needs of the particular effort. Failure to properly prepare for the HAZOP/LOPA is one of the easiest ways to compromise results. The objective of this paper is to encapsulate experiences of the authors in facilitating HAZOP/LOPA over a wide-spectrum of industries, owner/operators, and facility-types, and provide the reader with some practical tips for transforming focused preparation activities into a successful HAZOP/LOPA outcome. Key paper topics include:

- Why quality and efficiency are both pivotal to a successful outcome

- Synchronization with organizational and regulatory objectives

- Tips for ensuring process, operations, and the remainder of the core support team are properly prepared

- Tips for ensuring vendors are properly prepared

- Effective use of part-time "Subject Matter Experts"

- Preparation for effective remote participation (e.g., use of videoconferencing and computer screen sharing)

- Making good use of a design review

- Master timeline in preparing for a successful HAZOP Study

- Pros and cons for pre-definition of causal events

- Nuisances of preparation for capital projects vs. operating facilities

- Nuisances in preparing for a new HAZOP/LOPA vs. a revalidation

- Ensuring the right tools are available