СОВЕРШЕНСТВОВАНИЕ МЕТОДИКИ ОЦЕНКИ РЕНТАБЕЛЬНОСТИ СКВАЖИН НА ПОЗДНЕЙ СТАДИИ РАЗРАБОТКИ МЕСТОРОЖДЕНИЙ

Currently, the development of the oil and gas industry is one of the urgent problems of ensuring the economic efficiency of the operation of producing wells at a late stage of the development of oil fields. This stage is characterized by a drop in oil production rates, an increase in waterlogging of produced products, an increase in operating costs and, as a result, a deterioration in the technical and economic performance of the well stock. In this regard, there is an increasing need to refine and improve the methodological foundations for assessing the profitability of producing wells. New approaches will make it possible to make informed management decisions: whether to continue well operation, carry out geological and technical measures, or temporarily decommission wells. The analysis of existing approaches to assessing the profitability of producing wells has helped to identify the main limitations of existing methods. The key disadvantage is that they do not take into account the individual characteristics of the operation of individual wells. In addition, the limitation of the methods is the lack of a promising view on the profitability of wells and changes in their economic indicators, taking into account the impact of technological measures. The purpose of the study is to improve the methodology for assessing the profitability of producing wells at a late stage of oil field development in order to improve the quality of management decisions and ensure sustainable economic efficiency of oil producing enterprises. Research materials and methods — the study of scientific publications and normative statistical sources, as well as the use of systematic, comparative and correlation regression analysis, methods of economic efficiency assessment as research methods. The study suggests a four-stage approach to assessing profitability, introduces an integral indicator of prospective profitability and classifies wells into 4 categories (highly profitable, profitable with growth potential, conditionally unprofitable, absolutely unprofitable). The implementation of this approach helps to increase the validity of management decisions and ensures an increase in the efficiency of oil field development at a late stage of operation. The practical approbation of the proposed approach was carried out using the example of an oil producing enterprise operating fields at a late stage of development. The impact of geological and technical measures on the profitability of the fund of producing wells has been assessed. The results obtained confirm the possibility of increasing the economic efficiency of well operation by improving the assessment system and making managerial decisions.