RESEARCH OF METHODS FOR INTENSIFICATION OF OIL PRODUCTION FROM LOWER CRETACEOUS SEDIMENTS OF GORYACHEISTOCHNENSKOE FIELD

At the present stage, the oil industry faces serious challenges in finding new effective technologies to enhance oil recovery. During the development of the Lower Cretaceous oil deposits, there is a tendency for significant decrease in well production due to deposits in the tubing of sparingly soluble asphaltene-resinous substances. With a drop in flow rate, pressure and temperature, the intensity of deposits, including bridging elements in the bottom-hole formation zone, increased. The article solves the problem of selecting an effective method for treating the bottom-hole zone in order to increase the intensification of production and increase the oil production of the formation and due to a more complete cleaning from hard-to-remove clogging deposits. The main aim of the study is to determine the most effective way of treating terrigenous reservoirs of the Lower Cretaceous deposits to influence the skeleton of the rock forming the reservoir and protect it from clogging deposits. Object: Goryacheistochnenskoe field located at the eastern end of the Tersk ridge, Grozny region of the Chechen Republic. The field is multi-layer. The Miocene, Upper Cretaceous, Albian, Alb-Aptian and Barremian deposits were in development and exploitation. The largest objects are associated with the Upper Cretaceous and Alb-Aptian deposits of the Lower Cretaceous. The Miocene deposit is practically depleted. The Albskaya and Barremskaya deposits are underexplored and are operated by single wells. Productive deposits of the Alb-Aptian deposit are characterized by relatively low reservoir properties. Methods: study of various technological methods of impact on the bottom-hole zone of the well. Results. In order to intensify and increase oil production, it is proposed to treat the Lower Cretaceous terrigenous reservoirs with organic solvents RINGO-GKS, RINGO-SKS and MKS. Experimental treatments in wells have shown the effectiveness of impact on the bottom-hole zone and its complete cleaning from clogging deposits