Hydraulic fracturing in deposits of terrigenous reservoirs of Ural-Volga deposits

The work is devoted to improving the processes of developing layers of terrigenous objects of one of the deposits of the Ural-Volga region and improving the technical and economic performance of enterprises of the fuel and energy complex. At the moment, most of the fields in the oil-bearing territory under consideration are characterized by high rates of reserve production, which are accompanied by a significant increase in waterlogging and complications affecting the completeness of resource extraction. However, with the general trend towards the development of reserves in the fields, deposits and areas of the zone with low production are often distinguished, characterized by low permeability and high heterogeneity, including in highly productive development facilities. The authors conducted a review of hydraulic fracturing methods in world and Russian practice. The classification of hydraulic fracturing methods and the features of its implementation are described. In the conditions of the field under consideration, the domestic experience of hydraulic fracturing and modern technologies in the design of hydraulic fracturing are analyzed. The influence of geological, technological factors and features of the development of the research object on the efficiency of hydraulic fracturing has been studied. The regularities of the influence of geological and technological parameters on the efficiency of hydraulic fracturing have been revealed, which can be successfully taken into account when designing operations in various geological and physical conditions of development. Based on the results of combining the results of the study, a number of conclusions were made that reduce the risks of making low-effective management decisions, which, in conditions of the need for operational development of residual oil reserves, is an integral part of the strategy of subsurface users. Keywords: hydraulic fracturing; terrigenous reservoir; colmatation; bottom-hole formation zone; reperforation; waterlogging; fluid flow rate; displacement characteristics.