Ryan Lacy, Engineering Project Manager, and Aaron Crowder, Director of Commercialisation, MMT, USA, discuss achieving TVC records for pipelines in a non-destructive manner. To obtain material properties, and determine pipeline material grade, operators use either destructive or non-destructive evaluation (NDE). Until recently, destructive material verification techniques have been the most accurate in obtaining this data. Destructive methods require a sample to be removed from the pipeline, otherwise known as a cut-out. However, modern NDE technology utilising frictional sliding is more accurate than previous methods and when used, a cutout is not required. These advanced methods also include advanced analytics which generate the same material properties as destructive testing, while leaving the pipeline uninterrupted, intact and in operation.
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