The phosphate-containing interlayers of the Bazhenov Formation as potential reservoirs

A. G. Kalmykov, E. A. Manuilova, G. A. Kalmykov, V. S. Belokhin, N. I. Korobova, O. M. Makarova, E. V. Kozlova, R. A. Khamidullin, V. A. Shishkov, A. G. Ivanova

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    The possible reservoir type of the Bazhenov Formation relative to the intervals enriched in phosphates (apatite varieties) is described in this work. The phosphate rocks are characterized by a highly developed pore space; their porosity can reach up to 14%. Along with this, these rocks have explicit geochemical characteristics of oil-reservoir rocks in comparison with other rock samples in the well. As an example, the productivity index and oil-saturation index for phosphates are twice as high as the background values. The composition of such rocks can slightly vary: fluorine can be observed in phosphate minerals, while the rock is always enriched in organic matter (>8 wt %).

    Original languageEnglish
    Pages (from-to)429-435
    Number of pages7
    JournalMoscow University Geology Bulletin
    Issue number6
    Publication statusPublished - 1 Nov 2016


    • and oil-saturated rock
    • Bazhenov Formation
    • phosphate reservoir


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