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@Article{mfs2025.1.005,
Title    = {The analysis of the development indicators of the Tournaisian deposit},
Author   = {A.E. Fetisov and S.Z. Anokhina},
Journal  = {Многофазные системы},
Year     = {2025},
Number   = {1},
Pages    = {26--32},
Volume   = {20},
Abstract = {The purpose of the present investigation is to analyze the development
            indicators of the Tournaisian reservoir of the Ural-Volga oil field.
            To complete this task, a large array of data is required, which has
            been obtained from the Technological Development Project. Numerical
            calculation is performed using software code implemented in the
            Python programming language with the material balance method. To
            minimize the material balance error in the software code, the
            optimize.minimize function of the SciPy library has been applied
            with the help of the L-BFGS-B method. The analysis of current
            development indicators has shown uneven development of the reserves
            of the Tournaisian oil deposit, as well as a positive effect of
            injection on the process of fluid displacement from the formation.
            In this paper, a material balance model has been constructed and
            adapted to the forecast date. As a result, the average error in the
            adapted parameters is 3,7%. To make a forecast for the development
            of the Tournaisian oil deposit, a dependence of the water cut of
            well production on the oil recovery factor based on core material
            has been constructed. The graphs of the arithmetic mean and maximum
            values of the absolute deviation module of the calculated water cut
            from the actual one, obtained due to a retrospective forecast of the
            synthesized from the Technological Development Project data of
            hydrocarbon fields at different stages of development are shown.
            It has been found that water cut of 98% achieved at a oil recovery
            factor equals to 0,335. The dependence of the reservoir flooding
            dynamics on the oil recovery factor has made it possible to forecast
            the technological development indicators, including the calculation
            of the dynamics of annual and cumulative oil production, as well as
            reservoir pressure. As a result of the calculation, the accumulated
            oil production has amounted to 649 thousand cubic meters with a
            water cut of 98\%.},
Keywords = {the Tournaisian reservoir, development indicators,
            the material balance method, water cut forecast,
            oil recovery factor, relative phase permeability, numerical study},
Doi      = {10.21662/mfs2025.1.005},
Url      = {http://mfs.uimech.org/mfs2025.1.005},
Language = {english}
}