Oil & Gas

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What is Linear Scanning?

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A high-resolution ultrasonic NDT solution speeding up the quality control process of large surfaces.

How to Analyse C-scan Mapping?

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C-scan mapping is the best ultrasonic testing solution to rapidly control large surfaces!

Hydrogen Blister Progression FMC/TFM Assessment

TFM (top) vs. PA (bottom) image

Hydrogen blistering usually occurs in systems where oil & gas contain large amounts of hydrogen sulphide. At high temperatures, when hydrogen atoms diffuse into the steel, hydrogen molecules form an internal defect or inclusion that usually migrate to become a small delamination. Over time, this can form voids or blisters which lower the equipment MAWP (maximum allowable working pressure) and may lead to equipment failure.


Ultrasonic NDT Corrosion Mapping From Phased Array to FMC-TFM

PA (left) vs. TFM (right) image

Corrosion inspections are used to evaluate the remaining wall thickness or the presence of mid-wall anomalies in pipeworks, pressure vessels, and other metallic structures. These inspections have always been at the heart of many problematic situations for production, maintenance and integrity considerations because of the safety and cost issues. Such material degradation can cause many problems to the industrial and civil infrastructures.

FMC/TFM Technique for Defect Characterisation

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Defect characterisation has always been a challenge for ultrasonic inspection techniques. Phased array has greatly enhanced the interpretation compared to conventional UT. However, some defects are still easily misinterpreted such as cracks with slag or lack of penetration depending on the geometry of the root.

Corrosion Mapping from PA to TFM

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Corrosion inspections are used to evaluate the remaining wall thickness or the presence of mid-wall anomalies in pipeworks, pressure vessels and other metallic structures.

Austenitic Stainless Steel Solution DAAH - Dual Linear Array Probe

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Austenitic stainless steel is well known for its high mechanical properties and corrosion resistance. This material is often used in the oil and gas, and nuclear industries where ultrasonic inspection techniques represent an important portion of the quality control process. However, these alloys often are very attenuating and the sound propagation in this material is anisotropic.



Hydrogen Blistering Inspection with Phased Array

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Hydrogen blistering usually occurs in ‘sour’ systems where oil or gas contain large amounts of hydrogen sulphide. At high temperature when hydrogen atoms diffuse into the steel, hydrogen molecules then form an internal defects or inclusions that usually migrate to become a small delamination. Over time, this can form voids or ‘blisters’ which may eventually generate enough pressure to rupture the metal.

Corrosion Mapping Solutions & Comparison UT-PA-3D

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Technical Paper

LongSeam Weld Inspection with PA-CSC

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Technical Paper

Technology Advancements for Remote NDT Applications

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Technical Paper

Long Seam weld Inspection with Phased Array

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​Phased Array inspection of curved parts brings some real technical challenges. Evaluation of seam welds on small diameter and heavy wall pipes is difficult to accomplish using actual tools that, most of the time, are based
on a flat surface model. This often leads to erroneous and imprecise flaw location and sizes.