Prediction and modeling of lithologic oil pools in the Middle Jurassic deposits on basis of geological and geophysical studies

Authors: P.A. Timoshenko, Yu.N. Shabaev (Surgutneftegaz OAO), I.A. Bogush (South Russian State Technical University (Novocherkassk Polytechnic Institute))
Comprehensive studies of oil-bearing Yu2 layer of Middle Jurassic age in the territory of the eastern part of the Vynglorsky basin of Frolovskaya megadepression (Western Siberia) were conducted. Different lithofacies conditions of the horizon formation on basis of paleogeomorfological analysis, confirmed by materials of core samples studies, are stated. An inverse relationship of minimum amplitudes of seismic waves and the effective thicknesses of Yu2 layer is revealed. As a result it had succeeded to discover and trace zones with the most powerful effective thicknesses, to specify contour of the previously known oil field and to define the boundaries of the newly discovered pool, as well as to assess the prospects of the considered territory and to reveal new objects of exploratory and estimating works.
Comprehensive studies of oil-bearing Yu2 layer of Middle Jurassic age in the territory of the eastern part of the Vynglorsky basin of Frolovskaya megadepression (Western Siberia) were conducted. Different lithofacies conditions of the horizon formation on basis of paleogeomorfological analysis, confirmed by materials of core samples studies, are stated. An inverse relationship of minimum amplitudes of seismic waves and the effective thicknesses of Yu2 layer is revealed. As a result it had succeeded to discover and trace zones with the most powerful effective thicknesses, to specify contour of the previously known oil field and to define the boundaries of the newly discovered pool, as well as to assess the prospects of the considered territory and to reveal new objects of exploratory and estimating works.


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