Non-Destructive Evaluation

Non-destructive Testing & Evaluation

Accurate and Timely In-Situ Validation of Integrity Threats

In-situ non-destructive evaluation (NDE) methods are used to verify and drive the accuracy of inline inspection (ILI) results while pipelines remain in service, enabling you to better characterize defects, prioritize repairs, and keep your product flowing.

Our NDE testing is performed by highly qualified American Society for Nondestructive Testing (ASNT)-certified Level II and Level III technicians who communicate directly with our data analysts, ensuring that potential discrepancies found through ILI by TDW or other providers are addressed in the field. You’ll receive your final reports electronically in as few as five days.

NDE Solutions

We offer a variety of NDE solutions, including:

NDE and Positive Material Identification

TDW has integrated a variety of NDE tools and techniques into our industry-leading Positive Material Identification (PMI) process. This generates reliable, traceable, and verifiable pipe records for maximum allowable operating pressure (MAOP) and maximum operating pressure (MOP).

Acid Etch

Acid Etch

Acid etch is one aspect of a full suite of non-destructive evaluation (NDE) technologies. It is used to visualize and evaluate indications and locations of pipe features, including arc burns, welds, and other anomalies. 

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Automated Laser Profilometry

Automated Laser Profilometry

Automated laser profilometry helps pipeline owners and operators determine corrosion depths on large external sections of pipeline. This proven technology provides fast, accurate data, which allows operators to identify and address pressing corrosion issues before they become critical.

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Automated Ultrasonic O

Automated Ultrasonic-0 Inspection

Automated ultrasonic (UT-0°) scanning service effectively detects and assesses pipeline corrosion and lamination. Because the scans are repeatable, the position and size data of each flaw can be compared to scans of the same area, allowing operators to track flaw growth and/or corrosion rates.

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Conventional Shear Wave

Conventional Shear Wave

Part of a suite of non-destructive evaluation technologies, conventional shear wave ultrasound is used to detect and size planar (crack and crack-like) anomalies in pipe walls. 

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Eddy Current Array

Eddy Current Array

Eddy current array (ECA) technology provides a highly sensitive means of detecting loss of thickness and surface flaws while pipelines are in service, allowing pipeline owners and operators to prioritize repairs and prevent flow interruptions.

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Magnetic Partical Inspection

Magnetic Particle Inspection

A combination of two non-destructive evaluation methods – magnetic flux leakage testing and visual inspection – magnetic particle inspection is used to check exposed pipe for surface anomalies. 

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Manual Profile Gauge

Manual Profile Gauge

Manual profile gauges are used to take direct measurements of metal loss, dents, gouges, or other deformations on your pipeline’s surface. This proven technology provides fast, accurate data, which allows you to identify external anomaly severity. It can be set up and put into use very quickly.

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Material Properties Assesment

Material Properties Assessment

An important factor in establishing pipe properties, in-situ material properties assessment is used to determine the mechanical properties of pipe steel, including yield strength and tensile strength.

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Manual Ultrasonic O

Manual Ultrasonic-0 Inspection

Manual ultrasonic testing straight-beam (UT-0°) services harness high-frequency mechanical energy, such as sound waves, to accurately detect wall thickness variations

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Optical Emmissions

Optical Emissions Spectrometry

Optical Emissions Spectrometry (OES) helps pipeline owners and operators identify characteristics of unknown pipe with less effort, lower total cost, and shorter turnaround.

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Phased Array

Phased Array

Considered the gold standard of ultrasonic (UT) inspection, phased array is an advanced non-destructive evaluation that enhances the sensitivity and efficiency of ultrasonic inspections

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Semi Automated

Semi-Automated Ultrasonic-0 Inspection

Semi-automated ultrasonic (UT-0°) scanning service detects and assesses pipeline corrosion and lamination. Because the scans are repeatable, the position and size data of each flaw can be compared to scans of the same area, allowing operators to track flaw growth and/or corrosion rates.

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