Significant Scope of the DBNP Work Completed During CPC Pipeline Scheduled Shutdown

From October 4 to 7, 2022, there was a 72-hour scheduled shutdown of the Tengiz-Novorossiysk crude pipeline.

In the Tank Farm (a group of tanks) at Tengiz PS new manifolds of Dia.1000 and the Spectacle blind of the ball valve of Dia.800 was rotated to switch from a blind to a spacer to provide for oil feeding into the new manifolds. The software and hardware of the Fire and Gas Detection System (FGDS) based on the Kit of technical means of security and fire alarm and fire extinguishing control (KTS-2000) of Russian production were updated for the preparation to start-up and commissioning of the booster pump station and drainage tank. The FGDS mimic panels were installed in the operator’s room and fire depot. The equipment of 40-cu.m drainage tanks and ESV (ball valves) was integrated into the Tengiz PS emergency shutdown system (ESD). Simultaneously, the FGDS control panels were replaced and integrated into the station control system.

Two Spectacle blinds of Dia.700  and a blind of Dia.500 were rotated to switch from a blind to a spacer at Atyrau PS. The mainline pump station control module was integrated into the Fire and Gas Detection System (FGDS). The station was also integrated into the existing Controls and Communication System (CS&C) with possibility of exercising control from the Operations Control Center (OCC). The work was completed to update the software and hardware of the programmable logic controller (PLC) of the general and emergency shutdown systems. Completion of the said work allows proceeding to trial starts of gas turbine units (GTU), MPU testing with subsequent comprehensive test.

At Astrakhanskaya PS, new process segments created as part of the DBN were tied-in to the existing pipelines of the Station with subsequent oil-in. Fourteen tie-ins were completed to provide for a new mud strainers site, mud strainer drainage tanks and backup quality loop to be integrated into the Astrakhanskaya PS process flowchart. The hardware and software of the general and ESD PLC were updated allowing for connection of the new CS&C equipment which provides for control and monitoring of the new mud strainers site and drainage tanks. During the integration process, the equipment was tested for its functionality.

The power supply layout was further refined to connect new equipment at Komsomolskaya PS. The mainline pump station control module was integrated into the Fire and Gas Detection System (FGDS) - KTS-2000, a new mainline pump station emergency shutdown board and emergency shutdown systems (ESD) were installed in the operator’s room. The mainline pump station was also integrated into the existing CS&C system with possibility of exercising control from CPC Marine Terminal OCC. The hardware and software of the general and ESD system PLC were updated. Completion of the said work allows proceeding to trial starts of the GTU, MPU testing and subsequent comprehensive test. The equipment of the new tank of the Surge relief system (SRS) was integrated into the station CS&C with subsequent oil in, testing and comprehensive test.

Work was completed in CPC Marine Terminal Operations Control Center (OCC) to integrate Astrakhanskaya PS and Komsomolskaya PS equipment into the SCADA system. The databases and SCADA display screens were updated to enable control and monitoring of the newly installed equipment from the OCC. The dispatcher’s applications, hydraulic model, simulator and Leak detection system (LDS) were updated to include the equipment connected during the scheduled shutdown.

An additional transformer sub-station for 10/0.4 kV with a 0.4 kV switchgear and necessary number of outgoing feeders for power supply of the prospective projects was put into operation at CPC Marine Terminal. To support taking out of service the main tank at the Marine Terminal Shore Facilities site, equipment was installed and integrated into the SCADA system with subsequent functional testing of the new tank of 800 cu.m.

The oil transportation through the Tengiz-Novorossiysk crude pipeline has currently been resumed. The Debottlenecking Program is being implemented in accordance with the project schedule.

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%.​