Inspectioneering

Ana Benz: About the Author
Materials Engineer, IRISNDT


Ana Benz

Ana Benz has worked for IRISNDT for 17 years as a Corrosion, Failure and Inspection Specialist. She performs inspections and organizes plant inspection projects using mainstream and advanced inspection technologies. Ana has worked extensively for the Chemical Process Industry, Petrochemical Plants, Fertilizer Plants, Oil and Gas and nickel refineries around the world. She graduated as a Materials Engineer in the University Simon Bolivar in Venezuela and then obtained a Master�s degree in Materials Engineering at the University of British Columbia more than 30 years ago. She has several CGSB NDT certificates and CWB Level 3 and API 510 certifications. Ana was a member of the NACE Edmonton Executive for 15 years and before that participated in various capacities for the Edmonton Chapter of the Canadian Welding Institute.

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Published Articles

March/April 2015 Inspectioneering Journal
By Ana Benz at IRISNDT, Bradley Baudier at Marathon Petroleum Company LP, and Michael O. Nichols at Marathon Petroleum Company

This article provides a discussion of a recent inspection performed at a U.S. refinery. Industry HF lines are experiencing piping failures in increasing numbers due to the presence of residual elements (such as Cr, Ni, and Cu among others) entrained within their carbon steel components.

Abnormal Cracks Led to Premature Decommissioning of  Boiler Feed Water Exchanger – What Happened and Why?
September/October 2014 Inspectioneering Journal
By Ana Benz at IRISNDT, Dr. Donald H. Timbres at D. & E. Consulting, Inc. , and Matt Stroh

A small leak from top tubesheet-to-tube welds prompted further inspection of the 1¼Cr- ½Mo Ammonia Converter Boiler Feed Water (BFW) Exchanger during a planned shutdown. Further cracks were identified in the top channel to tubesheet butt weld that operated at 700 °F.

Leaking Dryers and Scrubbers Located at Natural Gas Well Facilities
January/February 2013 Inspectioneering Journal
By Ana Benz at IRISNDT

In this article you will find the failure investigations of six 0.094 inch thick carbon steel vessels. These vessels were in service in natural gas well facilities; some functioned as dryers and were subjected to cyclic loads. Metallographic tests, hardness tests, and fracture surface scanning electron microscopy (SEM) examination results are presented for each of the vessels.


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