Papers by Warren Mitchell
Process control performance is a cornerstone of operational excellence in the refining and petroc... more Process control performance is a cornerstone of operational excellence in the refining and petrochemicals industry. Control performance assessment and monitoring applications have become mainstream in the refining industry and are changing the maintenance methodology surrounding control assets from predictive to condition based. The large numbers of these assets on most sites compared to the numbers maintenance and control personnel has made monitoring and diagnosing control problems challenging. Identifying specific control issues on a refinery wide basis which are causing problems can be like finding a needle in a haystack. Tree Mapping, a data visualization technology developed in 1990 has now been applied to this problem successfully within a condition based maintenance framework. This paper explores the challenges associated with control performance assessment and monitoring and shows how tree mapping technology eases the visualization challenge associated with monitoring hundreds or thousands of control assets. Both regulatory and APC examples are demonstrated.
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Papers by Warren Mitchell