In August 2018, Gazprom was testing four appraisal wells in the Tambeyskoye Zapadnoye discovery in Yamalo-Nenets Autonomous Okrug (Western Siberia). Tambeyskaya Zapadnaya 43, 44, 45 and 124, aimed at refining of a geological model of reservoirs in the Middle Jurassic section, were drilled in 2016-2018. The company started testing of the wells in April-May 2018 and, by September, all wells tested gas and condensate from reservoirs Yu8, Yu7, Yu6 and Yu2. Based on results of its appraisal program which included 3D seismic acquisitions and drilling of wells, Gazprom submitted a new model for the Tambeyskoye Zapadnoye, Tambeyskoye Severnoye and Tasiyskoye discoveries that integrates the discoveries into the single Tambeyskoye field based on the common pool in the Middle Jurassic play. Gazprom estimates that 3P gas reserves of Tambeyskoye may reach 127 Tcf, almost doubling current combined 3P reserves of the discoveries.
In August 2018, Gazprom was testing four appraisal wells in the Tambeyskoye Zapadnoye discovery in Yamalo-Nenets Autonomous Okrug (Western Siberia). Tambeyskaya Zapadnaya 43, 44, 45 and 124, aimed at refining of a geological model of reservoirs in the Middle Jurassic section, were drilled in 2016-2018. 