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The Gazprom Neft Board of Directors considers its field-development programme under long-term risk-operatorship agreements

Press-release Technology

The Gazprom Neft Board of Directors has reviewed information on the progress of projects being undertaken through long-term risk-operatorship agreements at Gazprom fields.

Gazprom Neft’s involvement in these projects is facilitating the targeted development of oil and gas-condensate deposits at Gazprom assets — the point of such long-term risk-operatorship agreements being that Gazprom Neft invests its own resources in geological prospecting and infrastructure development, thus consolidating reserves, production and the financial outcomes of implementing these projects.

By working on the basis of long-term risk-operatorship contracts the company has significantly increased its project portfolio, having started developing oil-rim deposits, Achimovsky deposits, and Jurassic—Necomian gas and gas-condensate deposits.* A company subsidiary — Gazpromneft-Zapolyarye — has secured development rights to nine fields for which licenses are held by Gazprom and its subsidiaries: the Pestsovoye, En-Yakhinskoye, Zapadno-Tarkosalinskoye, Chayandinskoye, Yamburgskoye, Orenburgskoye, Urengoyskoe, Kharasaveiskoye and Bovanenkovskoye.

RUB13.5 billion has been invested in implementing long-term risk-operatorship agreements throughout 2019, making it possible to prepare fields for full-scale development, on schedule. Total cumulative production from projects at Gazprom assets stands at 366,000 tonnes of oil.

Plans for 2020 envisage full-scale infrastructure construction starting at the Pestsovoye, En-Yakhinskoye, Chayandinskye, Zapadno-Tarkosalinskoye and Orenburgskoye fields, pilot works continuing at the Yamburgskoye field, and pilot works commencing at the Urengoyskoye oil and gas-condensate field, at gas-condensate Achimovsky deposits at the Pestsovoye oil and gas-condensate field, and at Jurassic-Neocomian deposits at the Kharasaveiskoye and Bovanenkovskoye fields.

Notes for editors

* An “oil rim” reservoir is one that forms part of an oil or oil-and-gas-condensate deposit in which gas constitutes a considerably greater volume than oil. It is, in fact, a thin seam between a significantly larger gas cap and a water-bearing stratum. The effective development of such geologically complex resources demands the use of new technological solutions in drilling complex wells, identifying ways of lifting liquid with a high gas content, and extreme precision in integrated design engineering.

Achimovsky deposits are strata located in the lower part of Cretaceous (chalk) deposits, almost directly above the oil-bearing Bazhenov formation — a group of geological formations in Western Siberia, located at depths of two, three and four kilometres. Achimovsky strata occur throughout the central zone of the West Siberian basin, with the most important being found in the Nadymsky and Purovsky Districts of the Yamal-Nenets Autonomous Okrug. Achimovsky strata are characterised by complex geological structure, necessitating the use of technologically complex techniques in developing these reserves.

Jurassic-Necomian gas and gas-condensate deposits are deep formations at the Kharasaveyskoye and Bovanenkovskoye fields, belonging to the lower part of the Melovaya and Jurassic systems, located at depths of 1,600–3,300 metres and marked by challenging geological conditions including high reservoir pressure and often-low reservoir permeability.