[Society of Petroleum Engineers SPE Russian Petroleum Technology Conference - Moscow, Russia (2017-10-16)] SPE Russian Petroleum Technology Conference - Accounting of Stationary Liquid Unloading Criteria in Simulation Model for Downhole Equipment and Regime Optimization and Prolongation of Gas Wells Operation (Russian)Maksimovskiy, I. V.; Minikaev, F. M.; Mangushev, R. R.; Mingazov, A. A.