In 2019, this region produced 48.2 mmtoe of hydrocarbons (including 46.4 mmt of liquid hydrocarbons), accounting for 20% of Rosneft’s total output. The Company’s key producing assets include Bashneft-Dobycha, Orenburgneft, Samaraneftegaz and Udmurtneft.
Bashneft-Dobycha operates 261 licence areas (with Bashneft as the subsoil user) located in the Republics of Bashkortostan and Tatarstan, the Orenburg Region, and the Khanty-Mansi Autonomous Area – Yugra. More than 50% of its proved reserves are concentrated in six major fields, including the Arlanskoye, Yugomashevskoye and Tuimazinskoye fields.
In 2019, Bashneft-Dobycha produced 16.7 mmtoe of hydrocarbons, including 16.3 mmt of liquid hydrocarbons.
Bashneft-Dobycha performs high-impact well interventions and drills new wells to maintain robust oil production at its mature fields. In 2019, Bashneft-Dobycha completed 1,272 well interventions (up 5.6% year-on-year), including drilling new wells and sidetracking, with incremental production increasing by 41 t per well.
Bashneft-Dobycha is stepping up production drilling. In 2019, it commissioned 114 new wells (vs 106 wells in 2018) with plans underway to increase the annual commissioning rate going forward. Bashneft-Dobycha implemented a multi-stage hydraulic fracturing technology for horizontal drilling, including acid and proppant fracturing techniques using polymer-free fluids, to get the most out of new wells and sidetracks. The company also seeks to achieve a higher quality and shorten the time of well construction by implementing advanced logging technologies in the drilling process and equipping well liners with burst port systems (BPS).
Orenburgneft operates 133 licence areas (including 131 licence areas as the subsoil user) in the Orenburg, Saratov and Samara Regions. More than 50% of its proved reserves are concentrated in 10 major fields, including the Rostashinskoye, Sorochinsko-Nikolskoye, Garshinskoye and Pokrovskoye fields.
In 2019, Orenburgneft produced 15.5 mmtoe of hydrocarbons, including 14.5 mmt of liquid hydrocarbons. To maintain production, the company focuses on advanced well intervention techniques and improvements in well operations and reservoir pressure maintenance.
In 2019, Orenburgneft increased well interventions for incremental oil production (excluding drilling) by 10% year-on-year to 365, which resulted in 0.7 mmt of incremental production.
Orenburgneft drilled its first-ever 1 km long MSHF HW targeting the Devonian deposits with an initial oil flow rate of ca. 100 t per day. It also performed tests on gas formations and commissioned seven wells with flow rates of up to 12 thousand cub m per day.
Samaraneftegaz runs 169 licence areas (including one licence area as the operator) located in the Samara Region. More than 50% of its proved reserves are concentrated in 12 major fields, including the Barinovsko-Lebyazhinskoye, Kuleshovskoye, Mukhanovskoye, Mikhailovsko-Kokhanskoye and Borovskoye fields.
In 2019, Samaraneftegaz increased its production of hydrocarbons by 3.8% year-on-year to 13.0 mmtoe, including 12.6 mmt of liquid hydrocarbons. The growth was mainly driven by higher basic production (up 4.5% year-on-year) with an average oil flow rate reaching 9.3 t per day. On 8 March 2019, the company’s production reached 34.6 kt per day, an all-time high over the past 15 years.