Case Studies
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Find out moreInspection for Gas Pipelines
Direct wall-thickness measurement with ART Scan
Gas Metal Loss Inspection
Acoustic Resonance Technology (ART) enables the direct ultrasonic wall thickness measurement of gas pipelines. As the ART Scan tool runs through the pipeline, each transducer repeatedly sends a wideband excitation pulse (chirp) to the pipe wall. As the pulse hits the pipe wall, it locally initiates multiple standing compressional waves between the two surfaces of the pipe wall, causing the pipe wall to resonate. These waves make the pipe wall a source for the resonant acoustic energy.
The transducer will detect this resonance signal, which will be recorded as it is trailing the entry echo. Data analysis of the specific resonance frequencies provides a direct measurement of local wall thickness. The stand-off (geometry) can be determined through time of flight measurement, and ID/OD information is extracted from the same signal.

ART Scan Inspection
Speak with a regional inline inspection expert about ART Scan's ability to detect and size metal loss in your liquid pipeline.
Resources
UT Metal Loss Measurements for Gas Pipelines
ART is an ultra-wideband acoustic measurement technology that delivers highly accurate pipeline wall thickness data.…
CUSTOM ENGINEERED BASELINE ILI FOR MULTI-DIAMETER OIL EXPORT ROUTE
A major US operator faced the challenge of connecting a deepwater oil export line to an existing 24"/28"…
Ultrasonic Pipeline Inspection Solutions
NDT Global is the leading supplier of ultrasonic pipeline inspection, acoustic resonance technology (ART), and…