The article discusses the results of drilling new wells, taking into account the features of the geological structure of the Moscovian stage of the Arlanskoye field. The analysis of the drilled wells was carried out taking into account the additional study of the geological structure of the carbonate formations of the Kashiro-Podolsk deposits in order to search and substantiate the criteria for predicting the productive intervals of the target carbonate reservoir. In order to improve the efficiency of development of the target in conditions of its active drilling, a detailed geological model was built to select the optimal zones and intervals for drilling horizontal boreholes for the planned drilling targets. The geological and operational criteria for the success of drilling new wells and sidetracks were determined, and zones of localization of residual recoverable reserves were categorized according to prospects. A matrix was formed that combines geological and operational aspects that determine the success of drilling. On its basis, parameters were refined to assess the effectiveness of drilling wells with horizontal completion in the Moscovian stage. A better understanding of the geological structure of the Kashiro-Podolsk formation and the success criteria formed as a result of the analysis of drilling new wells will improve the efficiency of development drilling and sidetracking.
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