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Transneft Diascan Performs Diagnostics of More Than 300 Oil Tanks

Source: www.gulfoilandgas.com 8/7/2017, Location: Asia

Diagnostics Directorate of Transneft Diascan performed examination of 328 tanks for oil and petroleum products storage within the 7 months of 2017. The works were performed as part of the integrated programme of diagnostic examination of pipelines and OPS (oil pump stations) facilities of Transneft for 2017. Full technical diagnostics with decommissioning was performed at 35 tanks; partial technical diagnostics without decommissioning was performed at 66 facilities.

Additional examination of 227 tanks was performed: tanks monitoring (56 units),control for the condition of anticorrosion coating (78 units), additional flaw-detection inspection (x-ray) of welded joints between the third and the fourth tank well rings (43 units). Methods of ultrasonic, acoustic emission and radiographic inspection were used during the examination.

The bulk of the works was performed at the facilities of Transneft Urals (55 tanks), Transneft Western Siberia (48 tanks), Transneft Siberia (45 tanks), Chernomortransneft (31 tanks) and Transneft Kama Region ( 28 tanks).

Besides in January - July 2017 Transneft Diascan diagnosed more than 1.1 thousand additional equipment units of the linear portion of oil and petroleum products trunk pipelines (repair collars, air escape valves, fittings, annunciators, sockolets, plugs, pressure tapoff units, PIG traps, spill collection tanks of PIG traps). As well, diagnostics of more than 1.4 thousand mechanic and technological equipment units, 105 automation and pipeline telemetry systems was performed. More than 50 km of industrial pipelines of OPS were examined, full technical diagnostics of 0.3 km of pipeline sections of the linear portion of oil trunk pipelines (OTP) and OPS (crossover lines between oil pipelines, pipelines of the linear portion of OTP not subject to in-line inspection and not examined using nondestructive testing methods) was conducted.

The diagnostics works were conducted both using the enterprise’s own resources and with involving subcontracting organizations. Following the inspection’s results, the condition of the examined facilities was admitted as satisfactory, plans of repair works on elimination of the detected defects were drawn up.

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