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CONSTRUCTION OF A THREE-DIMENSIONAL GEOLOGICAL MODEL OF THE UCHKYR OIL AND GAS CONDENSATE FIELD, TAKING INTO ACCOUNT THE FEATURES OF THE GEOLOGICAL STRUCTURE

field, three-dimensional geological modeling, stratigraphic wedging, filtration-capacitance properties, lithological heterogeneity, Jurassic and Cretaceous deposits.

Authors

The article discusses the construction of a three-dimensional digital geological model of the Uchkyr oil and gas condensate field
located in the Republic of Uzbekistan and at a late stage of development. The work was performed using the Petrel software
package based on the integration of heterogeneous geological and geophysical data, including coordinates and inclinometry of
123 wells, results of interpretation of geological and geophysical data, seismic survey data and archival 2D modeling maps.
Stochastic modeling methods were used in the distribution of filtration and capacitance properties. For the first time, a full-scale
3D model covering the productive horizons of the Jurassic and Cretaceous age has been created for this deposit. During the
study, the boundaries of stratigraphic wedging and lithological replacement of strata were clarified, which made it possible to
identify the reasons for the reduction in the area of gas content in the northeastern and southeastern parts of the structure. The
resulting model serves as a tool for minimizing geological risks when planning new wells and is the basis for further
hydrodynamic modeling and recalculation of hydrocarbon reserves.