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Reservoir classification based on petrophysical properties of Devonian siliciclastic sediments, Russian Platform, Republic of Bashkortostan

UDK: 55(091)
DOI: 10.24887/0028-2448-2018-4-22-25
Key words: terrigenous and carbonate reservoir, the complex petrophysical studies, reservoir, porosity, permeability, residual water saturation, the study of granulometric and mineralogical composition, petrophysical constants, correlation, lithotypes, facies
Authors: A.M. Nigmatzyanova (BashNIPIneft LLC, RF, Ufa), A.A. Gubaydullina (BashNIPIneft LLC, RF, Ufa), T.V. Burikova (BashNIPIneft LLC, RF, Ufa), A.S. Dushin (BashNIPIneft LLC, RF, Ufa), O.R. Privalova (BashNIPIneft LLC, RF, Ufa), A.N. Chervyakova (BashNIPIneft LLC, RF, Ufa), R.V. Akhmetzyanov (BashNIPIneft LLC, RF, Ufa)

The aim of the authors was to create a database of reference petrophysical information for the sediments of terrigenous strata of Devonian, ranked by areas of petroleum-geological regionalization and productive formations. This database is necessary for reliable estimating the parameters of mature and new fields. Such a database of petrophysical information provide an information on petrophysical heterogeneity, using a single approach, such as in research and analysis of data and will be useful in the justification for using data on deposits-analogues in case of small fields as well as objects without their petrophysical dependencies when creating petrophysical models of oil fields. Additionally, this work is designed to bring together the geological processes involved in the formation of rocks and show how these processes are involved in the formation of the hollow space and heterogeneity of the reservoir properties of the reservoir. The work is based on the sequential study of complex data, including core information, highlighting lithological typing, laboratory core studies, a comparison of selected lithotypes and petrophysical heterogeneity, study of the factors affecting the void space of the reservoir. The work also shows the algorithm of transfer of this ranking petrophysical core data to the division by the well logging data.

References

1. Lozin E.V., Geologiya i neftenosnost' Bashkortostana (Geology and oil content of Bashkortostan), Ufa: Publ. of BashNIPIneft', 2015, 704 p.

2. Rykus M.V., Rykus N.G., Sedimentologiya terrigennykh rezervuarov uglevodorodov (Sedimentology of terrigenous hydrocarbon reservoirs), Ufa: Mir pechati Publ., 2014, 324 p.

3. Tiab D., Donaldson E C., Petrophysics: theory and practice of measuring reservoir rock and fluid transport, Elsevier Inc., 2004, 926 p.

4. Dobrynin V.M., Vendel’shteyn B.Yu., Kozhevnikov D.A., Petrofizika (Fizika gornykh porod) (Petrophysics (Physics of rocks)): edited by Kozhevnikov D.A., Moscow: Neft’ I gaz Publ., 2004, 368 p.

5. Ivanov V.N., Frolov V.T., Sergeeva E.I. et al., Sistematika i klassifikatsiya osadochnykh porod i ikh analogov (Systematics and classification of sedimentary rocks and their analogs), St. Petersburg: Nedra Publ., 1998, 345 p.

6. Dakhnov V.N., Geofizicheskie metody opredeleniya kollektorskikh svoystv i neftegazonasyshcheniya gornykh porod (Geophysical methods for the determination of reservoir properties and oil and gas saturation of rocks), Moscow: Nedra Publ., 1975, 343 p.

7. Metodicheskie rekomendatsii po podschetu zapasov nefti i gaza ob’emnym metodom. Otsenka kharaktera nasyshchennosti po dannym GIS (Guidelines for the calculation of reserves of oil and gas by volumetric method. Assessment of the nature of saturation according to well logging): edited by Petersil’e V.I., Poroskun V.I., Yatsenko G.G., Moscow –Tver: Publ. of VNIGNI, 2003. 259 p.

8. Latyshova M.G., Martynov V.G., Sokolova T.F., Prakticheskoe rkukovodstvo po interpretatsii dannykh GIS (Practical guidance on the interpretation of well logging data), Moscow: Nedra Publ., 2007, 327 p.

9. Metodicheskie rekomendatsii po opredeleniyu podschetnykh parametrov zalezhey nefti i gaza po materialam geofizicheskikh issledovaniy skvazhin s privlecheniem rezul'tatov analizov kerna, oprobovaniy i ispytaniy produktivnykh plastov (Guidelines to determine the calculation parameters of oil and gas using well logging data with the involvement the results of core analysis, sampling and testing of productive formations): edited by Vendel'shteyn B.Yu., Kozyar V.F., Yatsenko G.G., Kalinin: Soyuzpromgeofizika Publ., 1990, 260 p.вЃВ 

The aim of the authors was to create a database of reference petrophysical information for the sediments of terrigenous strata of Devonian, ranked by areas of petroleum-geological regionalization and productive formations. This database is necessary for reliable estimating the parameters of mature and new fields. Such a database of petrophysical information provide an information on petrophysical heterogeneity, using a single approach, such as in research and analysis of data and will be useful in the justification for using data on deposits-analogues in case of small fields as well as objects without their petrophysical dependencies when creating petrophysical models of oil fields. Additionally, this work is designed to bring together the geological processes involved in the formation of rocks and show how these processes are involved in the formation of the hollow space and heterogeneity of the reservoir properties of the reservoir. The work is based on the sequential study of complex data, including core information, highlighting lithological typing, laboratory core studies, a comparison of selected lithotypes and petrophysical heterogeneity, study of the factors affecting the void space of the reservoir. The work also shows the algorithm of transfer of this ranking petrophysical core data to the division by the well logging data.

References

1. Lozin E.V., Geologiya i neftenosnost' Bashkortostana (Geology and oil content of Bashkortostan), Ufa: Publ. of BashNIPIneft', 2015, 704 p.

2. Rykus M.V., Rykus N.G., Sedimentologiya terrigennykh rezervuarov uglevodorodov (Sedimentology of terrigenous hydrocarbon reservoirs), Ufa: Mir pechati Publ., 2014, 324 p.

3. Tiab D., Donaldson E C., Petrophysics: theory and practice of measuring reservoir rock and fluid transport, Elsevier Inc., 2004, 926 p.

4. Dobrynin V.M., Vendel’shteyn B.Yu., Kozhevnikov D.A., Petrofizika (Fizika gornykh porod) (Petrophysics (Physics of rocks)): edited by Kozhevnikov D.A., Moscow: Neft’ I gaz Publ., 2004, 368 p.

5. Ivanov V.N., Frolov V.T., Sergeeva E.I. et al., Sistematika i klassifikatsiya osadochnykh porod i ikh analogov (Systematics and classification of sedimentary rocks and their analogs), St. Petersburg: Nedra Publ., 1998, 345 p.

6. Dakhnov V.N., Geofizicheskie metody opredeleniya kollektorskikh svoystv i neftegazonasyshcheniya gornykh porod (Geophysical methods for the determination of reservoir properties and oil and gas saturation of rocks), Moscow: Nedra Publ., 1975, 343 p.

7. Metodicheskie rekomendatsii po podschetu zapasov nefti i gaza ob’emnym metodom. Otsenka kharaktera nasyshchennosti po dannym GIS (Guidelines for the calculation of reserves of oil and gas by volumetric method. Assessment of the nature of saturation according to well logging): edited by Petersil’e V.I., Poroskun V.I., Yatsenko G.G., Moscow –Tver: Publ. of VNIGNI, 2003. 259 p.

8. Latyshova M.G., Martynov V.G., Sokolova T.F., Prakticheskoe rkukovodstvo po interpretatsii dannykh GIS (Practical guidance on the interpretation of well logging data), Moscow: Nedra Publ., 2007, 327 p.

9. Metodicheskie rekomendatsii po opredeleniyu podschetnykh parametrov zalezhey nefti i gaza po materialam geofizicheskikh issledovaniy skvazhin s privlecheniem rezul'tatov analizov kerna, oprobovaniy i ispytaniy produktivnykh plastov (Guidelines to determine the calculation parameters of oil and gas using well logging data with the involvement the results of core analysis, sampling and testing of productive formations): edited by Vendel'shteyn B.Yu., Kozyar V.F., Yatsenko G.G., Kalinin: Soyuzpromgeofizika Publ., 1990, 260 p.вЃВ 


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