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Transneft Diascan commissions new type of inline inspection tool

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Oilfield Technology,

Transneft Diascan has developed, manufactured and commissioned a new type of inline inspection tool: the EMA-based defectoscope is able to find peeling areas in the pipeline coating.

The new device is equipped with a measuring system which 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 new inspection tool to detect pipeline coating defects sized 100 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°? to 60°? 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.

The EMA-based inspection tool has been created to detect peeling areas in the pipeline coating and is the eighth tool type in the portfolio of inline inspection tools developed by Transneft Diascan. Today, the company's fleet comprises about 90 devices, including multichannel geometry tools with a navigation system, pipeline positioning tools, ultrasonic, magnetic, combined magnetic and magnetic-ultrasonic defectoscopes, as well as pipe walls multiangle inspection tools.

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