Analysis of Methods of Multi-Stage Hydraulic Fracturing Efficiency Assessment at Horizontal Wells

metry in an explicit form. The main idea of this paper is the development of the methodology for the assessment of well’s performance on the basis of currently existing models. The development of the methodology included several stages: the selection of an appropriate mathematical model, its further modification and adaptation in order to meet real-life challenges, as well as examination of possible fields of application. Subject area review revealed the existence of the following mathematical models, that allow to predict the performance of the considered type of wells: Hujun Li and Zhengqi Jia, Boyun Guo and Xiance Yu, Hong Yuan and Desheng Zhou. These models formed the basis of this study. As a result of performed research, complete methodology for evaluation of the productivity of horizontal wells with multistage hydraulic fracturing, on the basis of Hujun Li model, was proposed. Several possible applications of this technique were examined. Model proved its workability in a specific geological conditions, peculiar to Western Siberia.