Author: Rahimov, Ashraf Rasul o‘g‘li; Usmonov, Kuvonchbek Mannonovich; Buronov, Firdavsiy Eshburiyevich

Annotation: The article analyzes the practical application and techno-economic efficiency of hydraulic calculation methods—developed based on the theory of pressure-dependent non-linear filtration—using the Alan gas field in the Kashkadarya region as a case study. The well's Inflow Performance Relationship (IPR) was calculated, and the techno-economically optimal operating mode (Qopt ≈ 336,000 m³/day) was determined. Based on techno-economic calculations, the optimal number of wells (13) required for full field development was established. Net Present Value (NPV) calculations covering a 10-year period were compared between the traditional approach (based on the classical Darcy model) and the proposed approach; the results demonstrated that the proposed method yields an NPV that is $5 million higher and increases overall economic efficiency by 21%. Economic risks were assessed using Monte Carlo simulation, highlighting potential improvements of 32% in drilling risk management and 15% in equipment utilization efficiency. Aspects of environmental safety and the potential for applying this approach to other fields in the Kashkadarya region (such as Zevarda, Kokdumaloq, and Shurtan) are also discussed.

Keywords: hydraulic calculation, productivity curve, optimal flow rate, net present value, techno-economic efficiency, Monte Carlo simulation, Alan gas field.

Pages in journal: 313 - 319