In the report the basic principles of new approach to the study of transport processes in porous medium are represented. The “percolation” approach has arisen as an attempt to overcome the traditional phenomenological approach in the underground hydromechanics, based on the assumption of continuity of saturated porous media, which does not allow to explain and to model a number of effects arising from the fluids flow in porous media. The results obtained are very interesting not only from the scientific point of view but as the scientific basis for a number of enhanced oil recovery technologies. In the report the basic principles of new approach to the study of transport processes in porous medium are represented. The “percolation ” approach has arisen as an attempt to overcome the traditional phenomenological approach in the underground hydromechanics, based on the assumption of continuity of saturated porous media, which does not allow to explain and to model a number of effects arising from the fluids flow in porous media. The results obtained are very not not from the scientific point of view but as the scientific basis for a number of enhanced oil recovery technologies.