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Gazpromneft-Zapolyarye produced approximately 200,000 tonnes of oil at oil-rim deposits at the Chayandinskoye oil and gas condensate field last year.* Gazpromneft-Zapolyarye’s well stock currently comprises 17 unites: a further 40 high-tech fishbone wells are expected to be drilled in the future.
Oil from the Chayandinskoye field is now feeding into the East Siberia Pacific Ocean (ESPO) trunk pipeline, all year round. Crude is brought up to GOST standards at an oil treatment facility before being delivered by oil tankers to the Gazprom Dobycha Noyabrsk integrated gas treatment facility, for mixing with stable gas condensate and subsequent delivery into the ESPO.
Gazpromneft-Zapolyarye is now expanding its oil-treatment capacity, with construction of a modular oil treatment unit, an oil pressure-pipeline, a compressor station and other oil and gas infrastructure facilities at the Chayandinskoye oil and gas condensate field currently ongoing.*** Commissioning these will allow high-quality treatment of all crude produced, as well as delivering an almost five-fold increase in oil production volumes at the field by 2023 in comparison with 2020.
Gazpromneft-Zapolyarye (a Gazprom Neft subsidiary) is developing a Chayandinskoye oil and gas condensate field oil-rim deposit under a long-term risk-operatorship agreement with Gazprom Dobycha Noyabrsk LLC (a subsidiary of Gazprom PJSC), which is responsible for developing gas at the field.
“The development of the Chayandinskoye field is an example of the development of integrated multicomponent strata, where all categories of resources — oil, condensate and gas — are produced as efficiently as possible. Chayanda is marked not just by colossal resources, but also serious geological challenges. Our technological expertise and experience in developing hard-to-recover oil in Yugra and Yamal are helping us overcome these successfully. Going forward, Chayanda could become the nucleus of Gazprom Neft’s new production cluster in Eastern Siberia.”Vadim Yakovlev Deputy CEO for Upstream, Gazprom Neft
“The cutting-edge technological and digital solutions we are deploying in developing oil-rim deposits have significantly speeded up lead-times inn starting commercial field development and the rate of production. The Chayandinskoye field will become the key backbone project in developing the eastern oil production cluster. Our current development objectives are commissioning gas infrastructure facilities and optimising production volumes.”Vladimir Krupenikov CEO, Gazpromneft-Zapolyarye
* 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 PJSC. The field is unique in terms of its reserves, with recoverable reserves standing at 1.2 billion cubic meters of gas, and 61.6 million tonnes of oil.
** “Fishbone” well construction refers to a multilateral well running at a specific trajectory, with multiple offshoots running from the horizontal shaft — giving the well a “fishbone” shape. This construction significantly increases coverage of oil-saturated reservoirs in comparison with traditional horizontal wells, while requiring less extensive drilling meterage than would be involved in constructing a separate well for each horizontal shaft. A fishbone-trajectory well allows each branch to be directed at a specific oil-bearing section, without impacting neighbouring strata containing gas or water.
*** Gazpromneft-Zapolyarye used modular oil production and treatment systems in designing and installing oil production infrastructure at the Chayandinskoye field —allowing the extent and lead-times of construction and installation works (CIW) at license blocks (development of which is complicated by their remoteness from major logistics hubs) to be minimised. Even early engineering surveys involved laser scanning of existing infrastructure, with all data on existing facilities, those under construction and future facilities being loaded onto a single geo-information system, meaning problems — of varying complexity — could be solved effectively and quickly. Production safety is ensured through an electronic monitoring system covering the entire construction site, together with aerial monitoring of all oil production facilities.