Ultrasonic Geometry Inspection
Pipelines suffer mechanical deformation due to various factors, initial construction or third-party influence, for instance. Any flaws that occur because of such actions severely damage pipeline coatings, often resulting in cracking or corrosion. Dents, often the result of mechanical deformation, impact significantly on a pipeline's safe operating pressure, and act as a stress riser themselves.
Accurate measurements of a pipeline's geometry and detection of dents are essential for the success of an ongoing integrity management program. By utilizing ultrasonic technology, NDT Global ensures a precise and direct measurement of dents with depth resolution down to 0.1 mm (0.004 in).
By using high-resolution ultrasonic geometry principles, NDT Global ensures an ILI that offers complete coverage of the pipe wall. UT geometry tools employ more sensors than the mechanical caliper-based tools traditionally used in the industry for geometry inspection. With this high number of sensors, in combination with UT principles, these ILI tools perform inspections with higher accuracy and sensitivity. This offers an upgrade on caliper-based inspections, which are susceptible to suffering from lift-off due to the speed at which its arms operate. As well as this, there is no risk of damage to the tool with ultrasonic inspection services.
Geometry inspection tools
Operators lower costs through obtaining multiple datasets from combined in technologies a single inspection run. NDT Global's Evo Series 1.0 Atlas UG has the capabilities to detect, identify and size for:
- Roof topping and out of roundness
- Dent with metal loss and/or corrosion
- Pipe expansion
As the Evo Series 1.0 Atlas UG offers enhanced accuracy with an ultrasonic combination, data analysis has developed to a point where it utilizes the obtained combined data with the improved identification of corrosion associated with dents. The ability to combine a corrosion or crack assessment with ultrasonic-based geometry measurement allows for a fully comprehensive pipeline inspection in a single run.