The Chayandinskoye oil and gas condensate field is located in the Lensky District of the Republic of Sakha (Yakutia).
The license to the field is owned by Gazprom.
The field is unique in terms of its reserves, with recoverable reserves standing at 1.2 billion m3 of natural gas, and 61.6 million tonnes of oil.
Gazpromneft-Zapolyarye is developing the field’s oil reserves under a long-term risk agreement with Gazprom Dobycha Noyabrsk, which is responsible for developing the gas element.
Chayandinskoye is one of the largest fields in eastern Russia.
The field forms the backbone of the Yakutia gas production center and serves as a resource base for the Power of Siberia gas pipeline.
Currently, Power of Siberia receives gas from Chayandinskoye.
A new gas production centre has been created in the region, with key facilities including comprehensive gas treatment and pre-treatment units, a booster compressor station, a utility system, and around 1,000 km of roads, including 25 bridges.
Chayandinskoye was discovered in 1983.
Upon obtaining the development license for Chayandinskoye in 2008, Gazprom conducted comprehensive geological exploration at the field.
2014 saw the beginning of pilot oil production from the field.
In 2015, Gazprom commenced the pre-development of Chayandinskoye’s gas deposit.
In 2019, the field started to produce gas.
The field’s annual design output is 25 billion m3 of gas, 1.9 million tons of oil, and 0.4 million tons of gas condensate.
Chayandinskoye is characterised by a complex geological structure, marked by exceptionally low formation pressure and temperature.
The presence of a gas cap adds a further issue.
Chayanda oil is heavy, highly viscous, resinous, and has a high sulphur content.
In the harsh natural and climatic conditions of Yakutia, Gazprom use lightly manned technologies that provide for automated equipment control and integrated facility management.
This approach help optimize staffing, reduce travel costs for passenger operations, and avoid constructing redundant residential infrastructure.
Since the field occupies a large area, it was planned to use stand-alone renewables-based power systems at remote gas well clusters in order to save money on building power transmission lines.
Chayandinskoye is the first field in Russia where the membrane technology of helium recovery from natural gas was used during commercial production, making it possible to pump as much helium into the gas pipeline as the market demands.