A new method for determining permeability profile in producing wells is proposed in this study. The method is based on integration of log interpretation results with well test data and information on vertical reservoir heterogeneity, determined from core studies or production data. Mathematical problem which has been stated is in determining a relationship between true and log-based permeability assuming that the type of permeability distribution function is given. We propose to solve this problem using generalization of the well-known mathematical statistics tool — a quantile-quantile transformation. A new algorithm for determining the Dykstra-Parsons coefficient (as a measure of vertical reservoir heterogeneity) based on historical oil production data is presented as well. The key advantage of proposed technique is acceleration and improvement of history matching in dynamic modeling process. It has been shown that the results obtained after the first model initialization are in very good agreement with production data.

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