Zayets V. Improving of operation efficiency of underground gas storage facilities in multilayer reservoirs

The thesis is devoted to the study of hydrogasdynamic processes flowing patterns in porous media of multilayer underground gas storages in order to improve operational parameters for qualitative prediction of the formation processes and cyclic operation of the gas storage facilities in depleted gas fields and aquifer beds. A mathematical model was developed for optimizing the parameters of cyclic operation of multilayer gas storage facilities and to calculate basic process chain from reservoir to gas pipeline during injection and gas withdrawal processes. Were improved the methods of quantitative estimation of the gas crossflow volumes in the multilayer storages to determine daily output of gas during crossflows between wells of joint operation, followed by determination of monthly volume in a time of crossflows existence.