Comparison of exploration and development data of the III potassium horizon of the fourth mine field of the Starobinskoe potassium salt deposit

The article presents the results of comparison of the exploration and development data of the III potash horizon of the Fourth mine field of the Starobinsky potash deposit. The results confirm that the applied methodology of exploration of the deposit gives reliable results, and the existing discrepancies do not have a significant impact on its subsequent development. During the comparison it was found that the increase in the density of the exploration network from the category C1 to A does not lead to a decrease in discrepancies, therefore, there is a doubt in the need to increase the number of wells at the exploration stage after obtaining the reserves of category C1 for such deposits. It follows from the analysis of the causes and magnitude of discrepancies in the counting blocks that the quality of drilling and core yield, rather than the number of wells, has the maximum influence. The conclusions presented in this article are preliminary, as they are based on the comparison of exploration and development data for only one potash horizon within one tectonic block, and need to be confirmed by further studies in other areas and horizons.

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