Abstract
The article examines the problems of solving the problem of optimizing oil production processes from a field with hard-to-recover oil reserves, characterized by shortages and fuzziness of the initial information. Equations for the continuity of the mass of matter in an oil reservoir have been derived for various cases. As a result of the study, by combining and modifying various optimality principles for fuzzy conditions, a formulation of the problem of multi-criteria optimization of oil production processes was obtained and an effective method for the resulting problem in a fuzzy environment was proposed. The effectiveness and novelty of the proposed heuristic algorithm lies in the fact that for the maximum use of the collected fuzzy information, it ensures high adequacy of solving fuzzy problems that arise in oil production practice. The sections of the studied multi-layer oil field Kenbai and the main properties of its layers are analyzed and described.