Case study - Evides Watercompany Showcases 24-Sensor PipeDiver® Tool for Metallic Pipelines

The Background

Pipeline condition assessment platform PipeDiver® is helping utility companies to support long-term asset management decisions on their underground infrastructure.

For example, in the Netherlands, the Evides Water Company is open to exploring new ways to reduce risks and extend the service life of its buried infrastructure. The company therefore undertook a major project with our technology partners Pure Technologies to showcase the 24-sensor PipeDiver® - a tool designed to condition assess large-diameter metallic pipelines.

The Challenge

The Evides TL2.60 pipeline is a cement-lined 800mm (31.5 inch) steel pipe, with 2.8 kilometers (1.7 miles) of the inspected pipeline running along an important highway connecting Rotterdam to The Hague. Failure of this ageing asset would have high consequences for nearby infrastructure.

The Solution

The 24-detector PipeDiver® has been specifically developed for metallic pipelines. For the Evides inspection, the PipeDiver® tool with 24 electromagnetic sensors was used to locate and identify steel pipes with anomalies associated with corrosion or reduced wall thickness.

The three insertions were carried out without incident and the PipeDiver® sailed through the pipeline with ease, gathering EM data along the route.

The Outcome

  • Of the approximately 237 pipe sections inspected during the real inspection, four pipes were identified with anomalies indicative of cylinder wall loss.
  • After the inspection, three out of the four locations were dug-up to verify the reported defects, using non-destructive ultrasonic techniques.
  • On each of the locations, defects were found, and the actual material loss was in the range reported.

In conclusion, the results offered proof that PipeDiver® is an advanced condition assessment tool able to deliver precise, actionable data on metallic pipes.

The exercise also proves PipeDiver® is a cost-effective solution versus methods that have operational constraints or require a shutdown or dewatering, or in this case, taken out of service.

(A more detailed version of this case study can be found on the Pure Technologies website here.)

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