Transneft Urals has performed inspection of 20 tanks for oil and petroleum products storage in order to determine their technical condition as part of the diagnostic inspection programme of operating facilities for the first half of 2020.
The second stage of the periodic full technical inspection of three tanks has been completed: one vertical steel tank with a floating roof (VFRT) with a capacity of 5,000 m3 (for oil storage) at the Chernushka oil pumping station (PS) and two vertical steel tanks (VST) with a capacity of 10,000 m3 each at the Subkhankulovo-PP petroleum products pumping station.
Visual and instrumental control, ultrasonic thickness measurements and ultrasonic testing of welded joints and base metal were performed, the condition of the anticorrosion coating was checked. A geodetic control of the tanks geometric parameters was carried out, and the serviceability of the process equipment was checked.
In addition, partial technical inspection of 17 tanks was completed: nine VFRTs and one VST for oil storage at the Yurgamysh, Leninsk, Nurlino and Subkhanulovo line operation dispatcher stations (LODS), seven VSTs for petroleum products storage at the Khokhly and Cherkassy-PP PSs and Petropavlovsk LODS.
According to the results of the inspection, all the examined tanks received confirmation of the extension of the safe operation terms.