Increasing the flooding efficiency at Karazhanbas field

The article presents the main geological reasons for the emergence of problems with the waterflooding efficiency at Karazhanbas field, as well as an overview of the main methods used to increase the coverage of its productive formations by development: periodic injection of steam and water into the formation, alignment of the injectivity profiles of injection wells, as well as gel-polymer flooding used in the neighboring field confined to the same productive formations. The results of a differential analysis of the development indicators of individual objects of this field are described with the aim of selecting areas of influence in them using the indicated methods. The article describes the results of the analysis of the effectiveness of the application of the WFP method of injection wells in the selected areas of this field.