Summary of Samara region Bashkirian stage A4 reservoir core analysis results for structural tectonic elements

Authors: B.F. Boriisov, G.A. Kovaleva, G.N. Karchevskaya, O.Yu. Lepeshkina (OJSC Giprovostokneft)

Key words: core, porosity, permeability, formation factor, saturation parameter, water saturation

The paper identifies summarized functions: porosity/permeability, formation factor/porosity, saturation parameter/water saturation of Bashkirian stage A4 reservoir individually for 4 structural tectonic elements distinguished within Samara Region - Sok upfold, South Tatarian dome, Zhiguli Pugachevian dome and Buzuluk low. These functions can be used to substantiate petrophysical functions of rocks’ various characteristics when estimating hydrocarbon reserves and field development project documents’ issuing in the case of low core recovery or core absence.

References

1. Metodicheskie rekomendatsii po issledovaniyu porod-kollektorov nefti i gaza fizicheskimi i petrofizicheskimi metodami (Guidelines for the study of reservoir rocks of oil and gas by physical and petrophysical methods), Moscow: Publ. of VNIGNI, 1978, 395 p.

2. Zakonomernost' razmeshcheniya i usloviya formirovaniya zalezhey nefti i gaza Volgo-Ural'skoy oblasti, Proceedings of the Institute of geology and development of fossil fuels (Volga branch), 1973, V. 5, 296 p.

3. Khanin A.A., Porody-kollektory nefti i gaza neftegazonosnykh provintsiy SSSR (Reservoir rocks of oil and gas of the USSR petroliferous provinces), Moscow: Nedra Publ., 1973, 303 p.

Key words: core, porosity, permeability, formation factor, saturation parameter, water saturation

The paper identifies summarized functions: porosity/permeability, formation factor/porosity, saturation parameter/water saturation of Bashkirian stage A4 reservoir individually for 4 structural tectonic elements distinguished within Samara Region - Sok upfold, South Tatarian dome, Zhiguli Pugachevian dome and Buzuluk low. These functions can be used to substantiate petrophysical functions of rocks’ various characteristics when estimating hydrocarbon reserves and field development project documents’ issuing in the case of low core recovery or core absence.

References

1. Metodicheskie rekomendatsii po issledovaniyu porod-kollektorov nefti i gaza fizicheskimi i petrofizicheskimi metodami (Guidelines for the study of reservoir rocks of oil and gas by physical and petrophysical methods), Moscow: Publ. of VNIGNI, 1978, 395 p.

2. Zakonomernost' razmeshcheniya i usloviya formirovaniya zalezhey nefti i gaza Volgo-Ural'skoy oblasti, Proceedings of the Institute of geology and development of fossil fuels (Volga branch), 1973, V. 5, 296 p.

3. Khanin A.A., Porody-kollektory nefti i gaza neftegazonosnykh provintsiy SSSR (Reservoir rocks of oil and gas of the USSR petroliferous provinces), Moscow: Nedra Publ., 1973, 303 p.


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