Ultrasonic method for monitoring corrosion damage in petroleum metal storage tanks using spectral tracking

Simmonds, K. E.; Mignogna, R. B.; Batra, N. K.
May 2000
AIP Conference Proceedings;2000, Vol. 509 Issue 1, p1809
Academic Journal
Within the oil industry there is a need to monitor and accurately characterize corrosion damage in large metal storage tanks. These structures most often will contain highly irregular (non-specular) surfaces with sediment, water and layers of suspended particles at or near the bottom surfaces. Inspection procedures for these tanks almost always, require de-inventorying and cleaning the tank bottom surfaces for visual and ultrasonic non-destructive examination of damage, as a result of corrosion. As known by the oil industry, de-inventorying oil storage tanks are a costly expense. In this paper, we discuss some results of an actual section of a corroded mild steel tank bottom, using ultrasonic spectral tracking. Initial research using this method, has shown promising results in the possibility of mapping corrosion damage in the presence of sedimentation. © 2000 American Institute of Physics.


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