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Sakhalin – Khabarovsk – Vladivostok GTS

Its the 1st interregional gas transmission system (GTS) in eastern Russia.

Sakhalin – Khabarovsk – Vladivostok  GTS

In 2008, Gazprom started to design the Sakhalin – Khabarovsk – Vladivostok GTS.
Construction was launched in July 2009.
In September 2011, the 1st start-up complex of the GTS was put onstream and natural gas began flowing to Vladivostok.
  • Length of the route: over 1,800 km
  • Base diameter of pipes: 1,220 mm
  • Working pressure: 100 atm (9.8 MPa)
  • Annual design capacity of the 1st start-up complex: 5.5 bln m3 of gas
The GTS is intended to deliver gas produced on the Sakhalin shelf to consumers in the Khabarovsk and Primorye Territories.
The GTS created favorable conditions for expanding the gas grid coverage in the said territories and ensuring gas supplies to Asia-Pacific.
The core facilities of the start-up complex are:
  • the Sakhalin main compressor station (32 MW)
  • the pipeline’s linear part connecting Sakhalin to Komsomolsk-on-Amur and Khabarovsk to Vladivostok (with a total length of 1,350 km)
  • the gas distribution station near Vladivostok
In the future, the GTS capacities can be increased to meet the growing gas demand through the expansion of the linear section between Komsomolsk-on-Amur and Khabarovsk and the construction of additional compressor stations.

The GTS route runs through regions with challenging seismotectonic environments.
In addition to the Nevelskoy Strait, the route has over 400 water crossings within the basins of the Amur and Ussuri Rivers.

The most advanced technologies and equipment are employed to ensure safety and reliability across the GTS.
For instance, the newly-applied telemetry system provides for remote control over the linear part of the pipeline.
The pipeline’s distant facilities are equipped with self-contained uninterruptible power systems.
Moreover, a fiber-optic geotechnical monitoring system, currently in testing mode, is used to track pipeline performance in seismically active areas.

Gazprom constructed the gas pipeline using domestically produced pipes with internal flow coating – the pipe’s inner surface was covered with a special polymer reducing fluid friction, which resulted in a smaller pressure decline and made gas transmission more cost-effective.

The main compressor station is outfitted with cutting-edge gas compressors that have magnetic-suspension centrifugal blowers running without lubrication.

As part of the GTS project, an inter-settlement gas pipeline was constructed to connect the gas distribution station located in Vladivostok to Russky Island, with a pipeline branch to Vladivostok’s CHPP-2.

The most technically challenging section of the gas pipeline – a 2-string passage across the Eastern Bosphorus Strait – was built using the directional drilling method.

At the time of construction, Gazprom set a precedent in Russia by building a passage of significant length (2.8 km each string) and a considerable mine tunnel diameter (762 mm) in the extremely difficult geological environment (rocks).