METHODS OF IMPACT ON FORMATIONS IN CONDITIONS OF COMPLEX GEOLOGICAL AND COMMERCIAL FACTORS

The development of oil production requires effective methods to increase oil recovery at a late stage of field development, especially in conditions of complex geological and field characteristics. One of the urgent tasks is to optimize the treatment of the bottomhole zone of wells to restore and increase the permeability of reservoirs, including Jurassic reservoirs with low permeability. The article discusses the theoretical and practical aspects of exposure to in order to improve filtration properties through the use of various chemical compositions such as acids and polymers. Special attention is paid to physico-chemical processing methods, analysis of the effectiveness of acid compositions, as well as the importance of selectivity of exposure to clay and minerals of the formation. The results of filtration experiments and field data confirming the high efficiency of the Himeko-TK-2 acid composition for the treatment of low-permeability terrigenous reservoirs, which provides significantly better results compared to traditional methods, are presented.