Inspection Personnel
Tank Inspection Group
Shutdown and Turnarounds
Nondestructive Testing (NDT)
Acoustic Emission Testing
Advanced Services

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Pipeline X-Ray Crawlers


The X-Ray Crawler is similar to conventional radiography however an x-ray source tube on a crawler device is run inside the pipe to each weld. Film is wrapped around the welds and the source tube is excited.  The film is then developed in a mobile dark-room on location. The technique is quick and can inspect on average 150 welds per day.  The advantages of X-ray crawlers are their speed and the short exposure time. The film is also crisper and much less grainy when compared to conventional radiography using Iridium type sources.