Electromagnetic Wall Loss Device Replaces Gamma Radiation Tool to Locate Localized Loss of Metallic Area (Wall Loss) in OCTG

Cover for article EMI replaces gamma radiation tool to locate wall loss in OCTG

Problem:  A serious misconception concerning the principles of two nondestructive testing methods and their use in the inspection of Oil Country Tubular Goods (OCTG), and drill pipe, seriously threatens the performance of casing, tubing and the drill string. The two NDT methods concerned are electromagnetics (EMI) and gamma radiation (RT-RAM). While using gamma radiation in an attempt to find rejectable loss of metallic area (LMA) in OCTG, many defects…

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