The Influence of Macro-Heterogeneity of the Achimov Formation on the Forecast of Well Technological Indicators

On the example of modeling the Achimov deposits, it is shown that the underestimation of the facies heterogeneities embedded in the 3D geological model can significantly affect the predictive ability of hydrodynamic models. When creating the geological model, a non-standard method was implemented for direct accounting of indirect information (geometrization of facies zones and elements of sedimentation conditions, taking into account the ratio of facies fractions in the section of the reservoir, seismic data). This allows to reflect all levels of heterogeneity, associated with facies differentiation of sediments. The influence of macro-heterogeneity of Achimov deposits on the forecast of well technological indicators is proved by the results of a computational experiment.