The Trans Anatolian Natural Gas Pipeline (TANAP) project is a 1850km pipeline to connect the Azerbaijan Gas supply to the Turkish and European gas networks, the delivery of which involves many countries and cultures.
is a very large pipeline project, running from the Northeast border of Turkey as far as the Greek border. It has a total length of 1850 km and is part of a bigger pipeline network aiming to connect the Azerbaijan Gas supply to the Turkish and European gas networks.
The part of the project awarded to Applus+ RTD consists of roughly 30,000 welds, which will also be inspected by Applus+ operators using the Applus+ RTD Rotoscan system
. This is an automated ultrasonic testing
(AUT) tool for pipeline integrity assessment
, where several acoustic signals are emitted by system probes at various angles and travel through the weld. Any imperfections in the weld are reflected by the acoustic signals, efficiently ensuring faultless weld quality.
The pipeline crosses mountainous areas, reaching altitudes of over 2500m and making it difficult to reach the steepest locations without the use of caterpillar vehicles. Applus+ operators also had to deal with extreme weather conditions, ranging from -40ºC in winter to +40ºC in summer.
During the project, insufficient cleaning of the pipe surface led to coupling loss or geometrical disturbances, making undesirable re-scans necessary. Despite these complications, however, weld inspections were successfully carried out by the Applus+ RTD teams.
The diverse cultures and nationalities involved in the project presented interesting challenges and opportunities.