Mid-South Refinery – 2006 Plant Wide Maintenance Turnaround Dry Abrasive Cleaning of Tube IDs Problem – In previous maintenance turnarounds, a 195 mb/d refinery had poor results in achieving clean cooling water exchanger tube IDs using typical hydroblasting methods. As a result NDT probes were limited in travel down the full length of the exchanger tubes, and data collected was incomplete. Over a seven year period repeated attempts to

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