Guided Wave Ultrasonic Testing (GUL), or Long Range Ultrasonic Testing (LRUT), is considered a viable screening approach for detecting CUI related problems in the oil and gas industry. Guided wave ultrasonic testing is a nondestructive inspection method in which low-frequency omnidirectional ultrasonic waves propagate along internal geometric boundaries, in order to detect corrosion. As the guided waves travel across the confined boundaries, the waves will then be reflected at areas with cross-sectional changes, identifying areas with corrosion. These low-frequency waves are able to travel great distances with less sound attenuation.
Not only can GUL provide expeditious and expansive coverage, it can also be used for the inspection of otherwise inaccessible assets (i.e. buried piping, roadway piping, etc.). Essentially, GUL can be used as a proactive screening tool to pinpoint specific areas...
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