Study of the interrelation between the geneseses and reservoir properties of productive series deposits in Pirallahi field on the basis of oil-field geophysical data
Keywords:genesis of sedimentary rocks, porosity, thickness of sediments, streamflow, bar, facies
Petrophysical properties of reservoir rocks are also influenced by a certain relationship between the lithological-mineralogical composition of rocks and the reservoir properties. For this reason, the study of the relationship between the genesis of Productive Series deposits and reservoir properties provides a basis for predicting the regularity of distribution of sand particles throughout the field and making some judgments about the development of porous and permeability zones. This, in turn, is of more scientific and practical importance while identifying variation of reservoir properties of rocks in sedimentary cover.
The paper offers a rational approach that determines the relationship between the genetic origin of sedimentary rocks and their reservoir properties and expounds on the study results.
As a research area, we chose «Qirmakiustu clay», «Qirmakiustu sand», Qirmaki and Qirmakialty series of Productive Series sediments studied in sections of conventional X1, X2, X3, X4, and X5 well sections located on one profile of Pirallahifield and their sedimentation environment and facies origin have been studied in more detail.
In the section of well under the study, the average value of effective porosity (Kav.p.), average thicknesses of sandy and clayey layers (Hav.cl., Hav.sand), and the relative thickness of sand bodies (Hrel.sand) were calculated for intervals at which the facies of flow, bar, and beach plain origin were identified. The curves of these parameters’ variation across the profile were drawn.
At the same time, the curves of thicknesses of flow, bar, and beach plain origin facies were drawn for the interval identified for each well section. These curves were compared and analyzed separately for each facies.
A study of the sedimentation environment and genesis of sedimentation and a comparative analysis of lithofacial and reservoir properties may be important for accurately evaluating oil and gas presence in the study area.
Almedallah, M.K., & Walsh, S.D.C. (2019). Integrated well-path and surface-facility optimizationfor shallow-water oil and gas field developments. Journal of Petroleum Science and Engineering, 174, 859—871. https://doi.org/10.1016/j.petrol.2018.11.025.
Hein, F.J. (2017). Geology of bitumen and heavy oil: An overview. Journal of Petroleum Science and Engineering, 154, 551—563. https://doi.org/10.1016/j.petrol.2016.11.025.
Gubina, A.I. (2007). Bases of facies cyclicity of sedimentary layers based on results of geological-geophysical studies in wells. Perm: Press time, 271 p. (in Russian).
Guliyev, I.S., Kerimov, V.Yu., Mustayev, R.N., & Bondarev, A.V. (2018). Evaluation of generation potential of shaly low-permeable layers (Caucasian Maikop series). SOCAR Proceedings, (1), 4—20. https://doi.org/10.5510/OGP20180100335 (in Russian).
Kerimova, K.A. (2009). Analysis of reservoir properties and genesis of sedimentary rocks of the South-Caspian basin. Karotazhnik, (11), 38—47 (in Russian).
Kerimova, K.A. (2011). Genetic model of sedimentary rocks based on integrated geophysical studies of wells in the South Caspian basin. Dissertation thesis. Baku, 181 p. (in Russian).
Kerimova, K.A., & Ganiyeva, R.Y. (2019). Study of genesis of productive series based on integrated well data (in case of Pirallahi field). News of the Ural State Mining University, (3), 90¾97 (in Russian).
Kerimov, V.Yu., Gasanov, A.B., Gurbanov, V.Sh., & Abbasova, G.G. (2020). Petrophysical characteristic of deep oil and gas reservoirs in inland and offshore fields in Azerbaijan. Eurasian Mining, (1), 3—8. https://doi.org/10.17580/em.2020.01.01.
Kerimov, V.Yu., Gordadze, G.N., Mustaev, R.N., & Bondarev, A.V. (2018). Formation Conditions of Hydrocarbon Systems on the Sakhalin Shelf of the Sea of Okhotsk Based on the Geochemical Studies and Modeling. Oriental Journal of Chemistry, 34(2), 934—947. https://doi.org/10.13005/ojc/340243.
Kerimov, V.Yu., Gordadze, G.N., Lapidus, A.L., Giruts, M.V., Mustayev, R.N., Movsumzade, E.M., Zhagfarov, F.G., & Zakharchenko, M.V. (2018). Physicochemical Properties and Genesis of the Asphaltites of Orenburg Ob-last. Solid Fuel Chemistry, 52, 59—67. https://doi.org/10.3103/S0361521918020064.
Kerimova, K.A., Khalilova, L.N. (2020). Genesis study of Productive Series sediments based on the results of quantitative interpretation of logging curves (on the example of Binagadi and Balakhani fields). Ore & metals, (8), 68¾71 (in Russian).
Lapidus, A.L., Kerimov, V.Y., Mustaev, R.N., Movsumzade, E.M., & Zakharchenko, M.V. (2018). Caucasus Maykopian kerogenous shale sequences: Generative potential. Oil Shale, 35(2), 113—127. https//doi.org/10.3176/oil.2018.2.02.
Mamedov, P.Z., Kerimova, K.A., & Mamedova, L.P. (2015). Study of facies composition of the Early Pliocene deposits (Productive Series) of the South-Caspian basin on the basis of logging data. Geophysics News in Azerbaijan, (3-4), 3—7.
Mustayev, R.N., Kerimov, V.Yu., Shilov, G.Ya., & Dmitriyevskiy, S.S. (2016). Modeling of thermal and pressure conditions of formation of hydrocarbon accumulations in shaly low-permeable reservoirs of Khadum suite of Fore-Caucasus. «Geomodel-2016»: 18th scientific and practical conference on problems of geological survey and development of oil and gas fields. Gelendzhik. https://doi.org/10.3997/2214-4609.201602185.
Shilov, G.Ya., & Jafarov, I.S. (2001). Genetic models of sedimentary and volcanogenic rocks and technology of their facies interpretation based on geological-geophysical data. Moscow: Information center VNİGRİ geosystem, 393 p. (in Russian).
How to Cite
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).