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|Example of Pinhole Corrosion © NDT|
Published in EPT by Wilhelm Sicking, April 13, 2016
NDT Rises the Bar for Pipeline Corrosion Inspection
Many inline inspection (ILI) providers still offer corrosion inspections without the resolution required to detect and size pinhole defects, with some ultrasonic services only reliably detecting features greater than 10 mm (0.4 inch) and sizing features greater than 20 mm (0.8 inch). However, operators have clearly identified pinhole and especially embedded pinhole defects as a significant risk factor in their integrity management programs. For example, inspection of general corrosion fields with embedded pinholes needs this higher resolution to better identify and size all features in the corrosion area. Higher resolution inspection of features identifies the true deepest point of a pinhole morphology within a larger area of corrosion with an overall shallower depth.
NDT Global's long term goal is to help the industry eliminate pipeline failure due to material defects. Constant innovation which improves the precision of measurement brings us closer to realizing this goal. "We hope that this move will encourage other ILI providers to remove low resolution measurement services, raising the bar for the industry with real benefits for pipeline safety" commented Andy Bain, COO, NDT Global.
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NDT Global is a leading supplier of
ultrasonic pipeline inspection and data analysis. Its state-of-the art
inspection fleet provides the entire inline inspection service spectrum
for onshore and offshore pipelines worldwide. First run success, best data
quality and rapid report delivery are our key benchmarks.