The AB1 recoverable oil reserves of the Russkoye field have increased 8% following exploration work carried out by Tyumenneftegaz, a petroleum production company belonging to Rosneft. The increase in the hydrocarbon potential of the project became possible thanks to the performance of 3D seismic and the drilling of three prospecting and exploration wells and 164 commercial wells. Based on the data they received, specialists from the company and the Tyumen Oil Research Center adjusted the 3D geological model of the Russkoye field and decided on a strategy for its further study and the drilling of exploration wells in the edge zones of the field.