The challenge
What is the impact of equipment that is out of service for maintenance or has a maintenance backlog? How do you know if you can rely on your equipment to run safe and efficient operations?
The solution
Besides barrier and control performance data coming from expert judgment, audits, inspections, oversight, incidents and competencies, it is also possible to integrate management system or distributed control system (DCS) data, coming from SAP or Maximo. This will enable you to understand and visualize the impact of the status of your equipment on your safety- and mission critical elements.
Data for Safety Critical Elements (SCE) coming from maintenance (or DCS) systems, like SAP or Maximo, can be linked to a barrier model on the level of ‘tag items’. All that it requires from the maintenance system is a status field that shows whether a tag-item is available – or not.
Once this is set your bowtie becomes a dashboard, displaying which barriers are offline and helping you decide what the risk impact may be.
Link your maintenance management data onto your bowties.
The logic for determining the availability of a tag-item can be derived from the maintenance system based on planned maintenance, work orders, and breakdown observations. All that is needed is a flat list that shows the status at a given moment.
Besides Safety Critical Elements (SCE), it may be useful to understand what elements are ‘mission critical’ and have the potential to disturb your operations.
Demonstrate how hardware components contribute to your risk management.
In the barrier model, the flat list of elements is ranked in a way that represents your barriers and your risk levels. Using a hierarchy and voting logic, you can decide what the thresholds are.
The features used for this solution:
Abu Dhabi Gas Development Company Ltd. (Al Hosn Gas) has extensively developed BowTies for its sour gas extraction and processing facilities in the United Arab Emirates. By integrating ‘live’ maintenance data of HSE Critical Equipment & Systems (HSECES) from SAP with these BowTies, the Company aims to dynamically manage the overall risk in the plant at any time during the operation of its facilities.
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