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River-bottom profiles for pipeline integrity management

River-bottom profiles for pipeline integrity management

NDT Global has released a paper that discusses how the data gained from river-bottom profiles (RBP) can be used to examine pipeline integrity.

Pipeline integrity management programs rely on having as much data as possible to assess potential corrosion threats to a pipeline.

The use of using ultrasonic inline inspection (ILI) provides data that can act as a basis for RBP.

RBPs provide a more detailed and accurate description of the shape of corrosion anomalies than other inspection methods, such as magnetic flux leakage (MFL), as seen in Figure 1.

Figure 1: extraction of RBP from filtered wall thickness (WT) inspection data.

NDT Global’s data-analysis team uses the data recorded to detect, classify, and size anomalies, which determines the length and depth of the anomaly, and the minimum remaining wall thickness of the corroded section of the pipeline.

RBPs can also be utilised for pressure capacity assessment and corrosion-growth assessment on at-risk pipes.

Knowing the location and the growth rate of these issues will allow operators to pre-emptively plan how the pipeline is operated, the maintenance methods used, and the budget for these plans.

For more information visit the NDT Global website.

If you have news you would like featured in Pipelines International contact Managing Editor Nick Lovering at nlovering@gs-press.com.au


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