USING RESPONSE SURFACE ANALYSIS TO ESTIMATE TIME OF THE GAS-WATER CONTACT LIFT IN YAMBURG GAS FIELD CONDITIONS СтатьяBacirheba M.J., Martial T.B.E., Abdugaforovich M.N., Ugli M.M.M.Journal of Advanced Research in Fluid Mechanics and Thermal Sciences. Том 87. 2021. С. 105-112