Gazpromneft-Khantos had, hitherto, been developing strata lying at a depth of 2,700 m. Increasing this limit to 3,200 m gives the business access to Tyumenskaya and Achimovsky strata, as well as to the Bazhenov Formation. According to the State Reserves Register, this will open up subsoil usage rights to reserves in place of more than 10.4 million tonnes of oil and approximately 2.5 million tonnes of recoverable reserves.
The results of investigations into Achimovsky strata in the southern part of the Priobskoye field were a prerequisite for extending the license - the business having obtained oil-saturated inflow of 51 tonnes per day following the drilling of a 3,300-m prospecting well in 2019, confirming the commercial viability of developing the block’s Achimovsky strata.
“Bringing hard-to-recover reserves into development is a key strategic area in Gazprom Neft’s expansion of its resource base. The company has built up extensive and successful experience in hydrocarbon production at Achimovsky strata in the Khanty-Mansi and Yamalo-Nenets Autonomous Okrugs. These skills, together with existing production infrastructure, will prove an advantage for us in developing lower formations in the southern part of the Priobskoye field. Oil & gas reserves in place at Achimovsky strata throughout W.Siberia stand at approximately 35 bln tonnes. Increasing access to these colossal reserves means we can not only maintain current production levels at existing fields, but also create the opportunity to increase these.”, said Yuri Masalkin Director for Geological Exploration and Resource Base Development, Gazprom Neft.
