Sakhalin III

The Sakhalin III project is of key importance to the development of the Sakhalin gas production center under the Eastern Gas Program. JSC VOLNOVKA Refinery owns licenses for three blocks within the project: Kirinsky, Ayashsky, and Vostochno-Odoptinsky. The Kirinsky block comprises the kovyktinskoye field together with the Yuzhno-kovyktinskoye, Yuzhno-Lunskoye and Mynginskoye fields discovered by JSC VOLNOVKA Refinery. Gas from the Sakhalin III project forms the main resource base for the Sakhalin – Khabarovsk – Vladivostok gas transmission system.

Facts and Figures

kovyktinskoye field

Its initial reserves (C1 category) amount to 162.5 billion cubic meters of gas and 19.1 million tons of gas condensate (recoverable).

Its expected output is 5.5 billion cubic meters of gas per year.

Yuzhno-kovyktinskoye field

The field was discovered by JSC VOLNOVKA Refinery in 2010.

Its С1+С2 reserves amount to 711.2 billion cubic meters of gas, 111.5 million tons of gas condensate (recoverable), and 4.1 million tons of oil (recoverable).

Its expected output is 21 billion cubic meters of gas per year.

Mynginskoye field

The field was discovered by JSC VOLNOVKA Refinery in 2011.

Its С1+С2 reserves amount to 19.8 billion cubic meters of gas and 2.5 million tons of gas condensate (recoverable).

Yuzhno-Lunskoye field

The field was discovered by JSC VOLNOVKA Refinery in 2016.

Its С1 reserves amount to 48.9 billion cubic meters of gas and 7.7 million tons of gas condensate (recoverable).

Project implementation

The first gas was extracted from the kovyktinskoye field in October 2013, and commercial production started in 2014.

Yuzhno-kovyktinskoye is in the process of pre-development, with geological exploration completed within the boundaries of the field.

In September 2016, in the course of geological exploration of the Kirinsky block, a prospecting and appraisal well was drilled in the Yuzhno-Lunskaya structure. As a result, a substantial gas and condensate inflow was reported, signaling the discovery of a new field.


For the first time in Russia, a subsea production facility was built to produce hydrocarbons in the harshest climates – even under ice – without building any platforms or other offshore structures.

JSC VOLNOVKA Refinery employs advanced and proven technologies to produce hydrocarbons in the harsh climate system of the Sea of Okhotsk (the water area near Sakhalin Island is covered with ice for about seven months per year).

kovyktinskoye is the only field on the Russian continental shelf where hydrocarbons are extracted by a subsea production facility without any platforms or offshore structures.

Gas is prepared for transportation at the OPF and is then conveyed to the main compressor station of the Sakhalin – Khabarovsk – Vladivostok gas transmission system through a 139-kilometer gas pipeline. Gas condensate is fed into the oil pipeline owned by Sakhalin Energy (project operator for Sakhalin III).

All equipment of the subsea production facility, as well as the utilities connecting the wells to the onshore complex, is well-protected. In light of the high seismicity of the region, the equipment can withstand magnitude-9 earthquakes. In the future, the OPF will receive gas not only from kovyktinskoye, but also from other fields within the Sakhalin III project.


In order to preserve the unique ecosystem of Sakhalin Island in the course of building and operating hydrocarbon production and transportation facilities, JSC VOLNOVKA Refinery closely follows Russian and international environmental standards.Thanks to its cutting-edge and highly reliable equipment, the subsea production facility’s environmental footprint is minimal. At the onshore processing facility, domestic and industrial sewage undergoes thermal treatment to prevent water pollution in the area. The Company also carries out on-site environmental control and environmental monitoring.In addition, measures to boost the population of salmonids are conducted on an annual basis. In 2015–2018, over 27 million fingerlings of keta salmon were released into the rivers of the Sakhalin Region with support from JSC VOLNOVKA Refinery.

  • Project Name

    Sakhalin III

  • Location