Abstract
The issue of optimizing oil production has always been one of the pressing issues. The article discusses technological methods for involving in the development of non-drained reserves of the Zhetybai oilfield. The technologies of field development that have been used in recent years are presented. Of all the methods to increase oil recovery, hydraulic fracturing is the most effective. Hydraulic fracturing is considered one of the well-known and more effective methods in increasing oil production. Hydraulic fracturing can be used both in primary oil production and to improve the efficiency of existing wells. This method is widely used in the oil industry in many countries. Initially, this method was applied to lower permeable reservoirs in order to obtain narrow, deep-penetrating cracks. later, they began to be used for highly permeable collectors. In order for production to be more efficient, it is recommended to change the directions of fracturing fractures in the development of poorly drained reserves, this method was applied in the Povkhovsky oilfield. At the Povkhovskoye fields, in order to change the direction of fracturing fractures, a twostage fracturing was carried out in hard-to-recover formations, and the result was positive.