ANALYSIS OF THE CAUSES OF WELL WATERING AND JUSTIFICATION OF OIL PRODUCTION STENSITION METHODS

Abstract

This paper presents the results of an analysis of the causes of water cut in producing wells and a decrease in their productivity based on the integrated use of geological, field, and geophysical data. The object of the study are wells operating in the productive horizons of the Kumkol oil field. An assessment was made of the influence of geological and technological factors on the increase in water cut, including a rise in the oil-water contact, the impact of injection wells of the formation pressure maintenance system, behind-the-casing flows, casing leaks, and water coning. Based on the analysis of well logging (WL), acoustic cement logging (ACL), and pulsed neutron gamma ray logging (PNGL), an assessment of the reservoir properties and the current oil saturation of the formations was made. The effectiveness of oil production intensification methods, including hydraulic fracturing, reperforation, and water influx isolation, is considered. Shortcomings in the interpretation of geophysical data that affect the reliability of reservoir parameter assessments are identified. Recommendations have been developed to improve the efficiency of field development and increase oil recovery.