Petroelastic modeling of Vereiskian and Bashkirian deposits on example of an oil field in the Republic of Tatarstan
https://doi.org/10.21285/2686-9993-2024-47-2-227-235
EDN: XOVHJH
Abstract
The purpose of this research was to present the results of petroelastic modeling of the Bashkirian and Vereiskian deposits of the oil field in the Republic of Tatarstan. To solve the problem of modeling elastic properties of the object under study (density, P-wave velocity and S-wave velocity), a self-consistent approximation model of effective moduli was used. The initial stage of petroelastic modeling included the selection of candidate wells and a reference well. To do this, the reliability of logging material in all wells was evaluated. The well with the most complete and accurate geological and geophysical information was selected. Then a petrophysical model was created by calculating filtration and reservoir properties and determining the formation volume factors of the rock components. Elastic property modeling began with the creation of a density curve on the basis of geophysical and petrophysical data. At this stage the petrophysical model was
evaluated. The choice of the petroelastic model was based on theoretical and experimental methods. The efficiency of the chosen model was confirmed by the convergence of modeling results with the recorded well data. The modeling resulted in obtaining the curves of elastic parameter distribution over the studied geological section. A good correlation was received between the initial data of geophysical studies of wells and model curves. The obtained results made it possible to improve the quality of available geophysical material, as well as to recreate elastic properties in wells not using the methods of direct recording.
About the Authors
E. A. Yachmeneva
Kazan (Volga Region) Federal University
Russian Federation
Competing Interests:
Russian Federation
Ekaterina A. Yachmeneva, Cand. Sci. (Geol. & Mineral), Associate Professor of the Department of Geophysics and Geoinformation Technologies, Institute of Geology and Petroleum Technologies,
Kazan.
Competing Interests:
The authors declare no conflicts of interests.
E. M. Battalova
Kazan (Volga Region) Federal University
Russian Federation
Competing Interests:
Russian Federation
Elvira M. Battalova, Student, Institute of Geology and Petroleum Technologies,
Kazan.
Competing Interests:
The authors declare no conflicts of interests.
References
1. Kazaryan A.A., Vakhitova G.R. Petrophysical models of Achimov deposits taking into account the facial environment. In: Topical Issues of Rational Use of Natural Resources: 17th International forum-contest of students and young researchers. 31 May – 6 June 2021, Saint Petersburg. Saint Petersburg: Saint Petersburg Mining University; 2021, vol. 2, p. 17-18. EDN: UEBEVK.
2. Yachmeneva E.A., Gilmutdinov S.R. The relationship between elastic and reservoir properties on the example of sandy deposit from one of the fields in Western Siberia. In: Science and Technologies in Geology, Exploration and Mining: 19th International multidisciplinary scientific geoconf. SGEM. Albena: STEF92 Technology Ltd; 2019, vol. 19, p. 1141-1148. https://doi.org/10.5593/sgem2019/1.2/S06.145. EDN: OHLZQH.
3. Mur A., Vernik L. Testing popular rock-physics models. The Leading Edge. 2019;38(5):350-357. https://doi.org/10.1190/tle38050350.1.
4. Vakhitova G.R., Kashapova L.M., Sakhautdinov I.R. Rock-reservoirs prediction by the results of petro-elastic modeling of terrigene and carbonate deposits. Geology, geophysics and development of oil and gas fields. 2018;12:52-58. (In Russ.). https://doi.org/10.30713/2413-5011-2018-12-52-58. EDN: VNJMNQ.
5. Zhang J., Yin Y., Zhang G. Rock physics modelling of porous rocks with multiple pore types: a multiple‐porosity variable critical porosity model. Geophysical Prospecting. 2020;68(3):955-967. https://doi.org/10.1111/1365-2478.12898.
6. Dalvand M., Falahat R. A new rock physics model to estimate shear velocity log. Journal of Petroleum Science and Engineering. 2021;196:107697. https://doi.org/10.1016/j.petrol.2020.107697.
7. Sharifi J. Multi-pore rock physics model: an intelligent approach for carbonate rocks. Journal of Petroleum Science and Engineering. 2022;218(1):1-12. https://doi.org/10.1016/j.petrol.2022.111002.
8. Bayuk I.O. Multidiscipline approach to determination of effective physical properties of reservoir rocks. Tekhnologii sejsmorazvedki. 2011;4:75-82. (In Russ.). EDN: OOPKSX.
9. Das A., Roy B., Folstad P.G., Lyngnes B., Smith B., Grandi A. Modeling dynamic elastic properties of compacting chalk reservoirs using an integrated rock-physics workflow: a case study in the Ekofisk Field, Norway. The Leading Edge. 2016;35(6):516-522. https://doi.org/10.1190/tle35060516.1.
10. Dræge A. Constrained rock physics modeling. The Leading Edge. 2009;28(1):76-80. https://doi.org/10.1190/1.3064149.
11. Hill R. Elastic properties of reinforced solids: some theoretical principles. Journal of the Mechanics and Physics of Solids. 1963;11(5):357–372. https://doi.org/10.1016/0022-5096(63)90036-X.
12. Brie A., Pampuri F., Marsala A.F., Meazza O. Shear sonic interpretation in gas-bearing sands. In: SPE Annual Technical Conference and Exhibition. Oklahoma: Society of Petroleum Engineers; 1995. https://doi.org/10.2118/30595-ms.
13. Batzle M., Wang Z. Seismic properties of pore fluids. Geophysics. 1992;57(11):1396-1408. https://doi.org/10.1190/1.1443207.
14. Hill R. A self-consistent mechanics of composite materials. Journal of the Mechanics and Physics of Solids. 1965;13(4):213-222. https://doi.org/10.1016/0022-5096(65)90010-4.
15. Aliyeva S., Dvorkin J., Zhang W. Oil sands: rock physics analysis from Well Data, Alberta, Canada. SEG Technical Program Expanded Abstracts. 2012;1-5. https://doi.org/10.1190/segam2012-0861.1.
16. Avseth P., Bjørlykke K. Explorational rock physics: the link between geological processes and geophysical observables. In: Bjørlykke K. (ed.). Petroleum Geoscience. New York: Springer; 2015, p. 403-426. https://doi.org/10.1007/978-3-642-02332-3_18.
Review
For citations:
Yachmeneva E.A., Battalova E.M. Petroelastic modeling of Vereiskian and Bashkirian deposits on example of an oil field in the Republic of Tatarstan. Earth sciences and subsoil use. 2024;47(2):227-235. (In Russ.) https://doi.org/10.21285/2686-9993-2024-47-2-227-235. EDN: XOVHJH
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