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Abstract

Summary

The aim of the work was clarification of the correlation, analyse of the formation conditions and lithologic typification of the Famenian deposits of the Bashkir arch for the creation of petrophysical sediment model. The development of the Kamsko-Kinelskaya trough system predetermined the formation of 2 facies zones at the north of the Republic of Bashkortostan-shelf and onboard.

The correlation constructions were based on the geophysical data of exploratory and production wells that opened the investigated section. The boundaries of the substages of the Famenian deposits were traced according to the consolidated geological and geophysical sections adopted in the calculation of the reserves. The results of the correlation constructions are isochore maps for each substage.

Using data of wells with high core removal and microscopic description of sections the structural-lithological typification of the carbonate deposits of the Famenian layer was carried out.

According to the typification, 11 lithotypes are distinguished, which in turn are grouped into 4 main groups of rocks.

More differentiated thickness maps for each substage reflecting the facies zoning can be used to solve geological exploration problems. In turn, the additional criterion that confirms the selected facies zones, taking into account the correlation, is structural lithological typification

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2017-09-11
2024-03-29
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References

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