The defects that are detected, identified and sized by UTCD inspection tools include cracks, crack colonies, mid wall inclusions and laminations. We operate our own UTCD inspection tools, developed at NCTO LLC for inspection of pipelines with nominal sizes from 6″ to 40″

According to API 1163, the UTCD performance qualification applies a comprehensive approach consisting of four stages for each of the included pipeline diameters:1) UT simulation is based on the essential variables of the UTCD tool and operational conditions.) Laboratory measurement of pipe coupons with test anomalies by applying ILI tool ...

Ultrasonic crack detection tools are sophisticated equipment designed for detection and sizing of crack-like anomalies. They are based on the technique similar to UT wall thickness measurement, however the sensors are mounted at a sharp angle to the pipe inner surface, so the emitted signal does not travel straight back to the transducer ...

The UTCD tool for pipeline integrity management (PIM) detects cracks and crack-like anomalies, especially pinpointing stress corrosion cracking (SCC), an environmental type of corrosion. The ability to detect subcritical cracks in pipeline steel is extremely important since SCC failures tend to be catastrophic in nature.

Unlike the magnetic flux leakage (MFL) tools, the accuracy of crack identification and sizing by UTCD tools has high sensitivity to temperature, pipe roughness and debris content. However, accuracy can be enhanced by calibrating the tool after conducting some verification digs and providing the field data (i.e., crack depth, crack length), to ...

Dexon Technology provides Ultrasonic (UT) based In Line Inspection tools for all types of liquid filled pipelines and includes Ultrasonic MultiChannel ILI’s (UT-MC) for high speed long length pipeline corrosion (metal loss) inspection.

2021年2月3日 · Several vendors offer ultrasonic crack-detection (UTCD) tools that can be used to detect and size cracks in liquid pipelines, while electromagnetic acoustic transducer (EMAT) tools are growing in popularity for gas pipelines.

Our RoCD UT-C service delivers the greatest sensitivity and spatial resolution in axial crack detection, providing what is needed for successful pipeline integrity management. The depth sizing accuracy presented for depth ≥ 4 mm (0.16”) is valid for anomalies with a remaining wall thickness ≤ 6 mm (0.24“).

DEXON offers extensive Ultrasonic Multi-Channel Hawk (UT-CS Hawk) In-Line Inspection Services to fully evaluate the integrity of your pipe line ensuring safety, longevity and performance. Detection and sizing of cracks and crack-like defects is critical in assessing the integrity and service life of pipelines.

2024年4月25日 · This article discusses the aforementioned limitations in detail and presents technical solutions to realize high-performance UT-C tools for small-diameter pipelines. Furthermore, it presents the performance qualification results of a new generation of extra-high-resolution UTCD tools for 6?, 8? and 10? pipeline diameters.