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Scope of Work During Scheduled Shutdown

On 6 October 2023, at 07:22 a.m. Moscow time, the crude pipeline system of Caspian Pipeline Consortium was put back into operation after the 72-hour scheduled shutdown.

During the said period, scheduled regular maintenance of various crude pipeline systems, Pump Stations and Marine Terminal was carried out. The work was carried out on the mechanical process, power and electrical equipment, instrumentation and automation systems and control systems. The work was also completed under CPC ongoing and capital projects that is only possible during shutdown of Pump Station and crude pipeline equipment.

CPC’s and Contractors’ specialists inspected the emergency shutdown systems functioning along the entire line pipe in Russia and Kazakhstan.  Middle-life repair of gate valves at PS-7 and pig L/R at KP1353 was completed. Ball valves (BV) and gaskets on drain BV in three pipeline manholes of mainline ball valves were replaced at Tengiz PS, Astrakhan PS and in the pig L/R at KP390 as scheduled.

A considerable amount of work was also performed on the line pipe. Defects were fixed by installation of repair sleeves on several segments of the trunk crude pipeline. As part of the relevant program, nine obsolete mainline ball valve electric actuators were replaced.

To implement CPC Base Business capital projects in the Russian Federation, a large scope of work related to upgrade the configuration of pressure control stations in the Marine Terminal Tank Farm was completed during the scheduled shutdown. In accordance with the first stage of upgrading the hydraulic mixing system line with installation of emergency oil discharge station, the surge relief line was isolated.

Work to improve power supply reliability was successfully completed at CPC Pump Stations in Stavropol Krai and Kuban region and at the Marine Terminal. High voltage cells of the Tank Farm main power substation were renovated as part of the upgrade of the existing power grid of the Marine Terminal - Tank Farm and Shore Facilities.

As part of the Debottlenecking Program (DBNP) implementation, a new control logic was applied at the MT Shore Facilities for three Lease Automatic Custody Transfer (LACT) systems.

The power supply panel of the Surge relief system (SRS) was dismantled and installed and the third drainage tank of the SRS unit was connected at PS-4 as per the DBNP schedule.  

Note that scheduled shutdowns take place several times a year. Crude lifting from the Marine Terminal has currently been resumed in the standard mode.

For information:

CPC Pipeline System is one of the major investment projects with foreign capital in energy sector in the CIS. The length of the Tengiz – Novorossiysk pipeline is 1,511 km. This route transports over two-thirds of all Kazakhstan export crude, as well as crude from Russian oil fields, including those in the Caspian Region. CPC Marine Terminal is equipped with three Single Point Moorings (SPM) that allow to load tankers safely at a significant distance offshore, also amid poor weather conditions.

CPC Shareholders: Federal Agency for State Property Management represented by Transneft (trust management) – 24%, CPC Company – 7%, KazmunayGas – 19%, Kazakhstan Pipeline Ventures LLC – 1.75%, Chevron Caspian Pipeline Consortium Company – 15%, LUKARCO B.V. – 12.5%, Mobil Caspian Pipeline Company – 7.5%, Rosneft-Shell Caspian Ventures Limited – 7.5%, BG Overseas Holding Limited – 2%, Eni International N.A. N.V. S.ar.l. – 2% and Oryx Caspian Pipeline LLC – 1.75%.​