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Transneft Diascan commissions new type of inline inspection tool

Published by
World Pipelines,

Transneft Diascan has developed, manufactured and commissioned a new type of inline inspection tool: the EMA-based defectoscope.

The new tool is designed to detect peeling areas in pipeline coating.

It is equipped with a measuring system that uses electromagnetic-acoustic transducers (EMATs). Its ultrasonic diagnostic method does not require the use of immersion fluid and is based on direct and inverse electromagnetic-acoustic transduction. This allows the tool to detect pipeline coating defects sized 100 mm x 100 mm and bigger.

The works on the development and assembly of the device started in January 2015 and lasted until August 2018. During the preliminary and acceptance tests, the tool proved its weather resistance in temperatures from -40°C to 60°C and mechanical damage resistance. The inspection tool successfully passed onsite tests at Transneft Diascan’s testing facility and at a section of Transneft Urals’ pipeline.

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