A.C. Gysbers: About the Author
Corporate Principal Materials Engineer, The Equity Engineering Group, Inc.
Mr. Gysbers has spent his 33 years with ExxonMobil primarily with its Canadian Affiliate Imperial Oil in a variety of roles related to materials, corrosion and inspection of petroleum refining, oils sands upgrading and downstream distribution (tanks and piping) systems. He retired as a Senior Engineering Advisor with worldwide corporate recognition as a troubleshooter and systems developer for these technical areas. Mr. Gysbers was the initial developer of corporate Risk-Based Inspection (RBI) techniques starting in the early 90's and has focused on developing tools and systems for use at plant levels to facilitate consistent application of degradation assessments, RBI, thickness data analysis and inspection processes. He was primary materials consultant for every major project for the last 20 years for Imperial Oil, selecting materials and performing NPQC for a wide variety of unit revamps and grass root refinery units. In addition all above ground storage tank inspections and assessments were subject to review and acceptance in his role as expert for the organization. Through active participation through NACE International STG 34, he has led several task groups and activities in developing standards for refining industry corrosion detection and prevention. In 2011 he joined Equity Engineering Group where he continues to provide materials, corrosion and inspection consulting support to clients primarily in the petroleum refining industry.
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Published Articles
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March/April 2015 Inspectioneering Journal
The tubes of heat exchangers (HX), whether for a shell and tube bundle or an airfin, are typically subject to some form of nondestructive examination (NDE) to try and quantify the remaining wall thicknesses and corrosion rates to help a plant to determine remaining life or the need for intervention via re-tubing or replacement of these thin wall components.
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A Discussion on the Piping Thickness Management Process - Part 3: Data Collection with Ultrasonics and Radiography
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A Discussion on the Piping Thickness Management Process - Part 2: Determining Corrosion Monitoring Locations