The works were carried out in Perm Territory, Sverdlovsk and Kirov Regions, the Republics of Tatarstan and Udmurtia.
During a scheduled shutdown of the Kholmogory – Klin oil pipeline, a gate valve was replaced and midlife repairs of six valves were completed, two check valves and a substandard pressure tap were replaced.
Four gate valves and one mainline pump unit were disconnected, and four gate valves, substandard pressure taps and check valves were replaced at Surgut – Polotsk OTP. Two mainline pumps, a booster pump unit and a gate valve were connected. Midlife repairs of three gate valves and two check valves were conducted. Also during the scheduled shutdown, three newly constructed sections of the Surgut – Polotsk OTP with a total length of 5.075 km were connected, a new gate valve and a bypass line with two gate valves were installed.
During the planned shutdown of the Osa – Perm OTP, 16 defects that impaired the run of in-line inspection tools were eliminated.
A tank of 20,000 m3 was disconnected from the process pipelines during the works at the Almetievsk – Gorky-3 OTP. The works were carried out without changing the operating protocol of the oil trunk pipeline.
As part of the repairs, 44 repair pits were dug out, more than 296 units of equipment were involved. The works were carried out 24/7 by repair teams of the Perm, Udmurtia, Kazan, Almetievsk and Romashkino Regional Oil Pipeline Directorates of Transneft Kama Region. Transneft North and Transneft Volga Region provided technical assistance.
The scheduled works were completed as part of the company’s comprehensive technical upgrading, revamping and overhaul programme. The goal was to maintain operational reliability of the trunk pipelines.
Oil transportation was resumed on schedule and is currently carried out under the standard protocol.