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oa Methodical Justification of Differentiation of Productive Layer by Methods of the Geological Field and Statistical Analysis
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Geomodel 2017, Sep 2017, Volume 2017, p.1 - 6
Abstract
In work methodical justification of differentiation of productive layer is described by methods of the geological field and statistical analysis. An object of a research is productive layer of one of large-scale deposits of Western Siberia of the North of the Surgut arch. The algorithm of differentiation includes ranging of layer on lithofacies zones, about use of electrofacial models on relative values of the PS-method a̍ps, allocation of classes of heterogeneity, the characterizing heterogeneity of an object and ranging of a well stock by methods of neural network modeling. The received distribution has been correlated to cards of development of efficiency. Comparison has shown that the maximum coefficients of efficiency reflect position of sandy bodies, such as bars and underwater shaft in the spatial relation. The maximum concentration of residual stocks and bad production of productive layer belongs to the mudded heterogenic zones of alongshore gullies and a prefrontal zone the beach.