Reasons for the low productivity of the Bashkirian stage oil deposits on the southwestern slope of the South Tatar arch
Oil deposits of the Bashkirian stage of low-amplitude uplifts on the southwestern slope of the South Tatar arch are considered. It has been established that in the sections of the Bashkirian stage, only the upper two oil deposits are potentially productive. The reservoir rocks are composed of leache...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/28/e3sconf_icape2024_03010.pdf |
| _version_ | 1797268866847473664 |
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| author | Korolev Eduard Eskin Aleksey Korolev Albert Barieva Enza Zamaletdinov Roman |
| author_facet | Korolev Eduard Eskin Aleksey Korolev Albert Barieva Enza Zamaletdinov Roman |
| author_sort | Korolev Eduard |
| collection | DOAJ |
| description | Oil deposits of the Bashkirian stage of low-amplitude uplifts on the southwestern slope of the South Tatar arch are considered. It has been established that in the sections of the Bashkirian stage, only the upper two oil deposits are potentially productive. The reservoir rocks are composed of leached packstone-grainstone. The oil productivity of the upper oil reservoir is determined by the intensity of leaching of carbonate rocks and the nature of oil saturation, while the lower one is determined by the degree of oxidation of oils and the manifestation of secondary mineralization. Oxidation of oil from the lower reservoir oil deposit is associated with the penetration of peripheral stratal water enriched with sulphate ions and magnesium ions. Deposition of diagenetic calcite, dolomite and gypsum-anhydrite aggregates in previously formed leaching caverns leads to a decrease in porosity and connectivity within reservoir layers. For low-amplitude uplifts, there is a tendency for oil productivity to decrease as the proportion of diagenetic mineralization increases. |
| first_indexed | 2024-04-25T01:39:17Z |
| format | Article |
| id | doaj.art-bdaaa7f5cce64c3dba1535479fd86808 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-25T01:39:17Z |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-bdaaa7f5cce64c3dba1535479fd868082024-03-08T07:48:22ZengEDP SciencesE3S Web of Conferences2267-12422024-01-014980301010.1051/e3sconf/202449803010e3sconf_icape2024_03010Reasons for the low productivity of the Bashkirian stage oil deposits on the southwestern slope of the South Tatar archKorolev Eduard0Eskin Aleksey1Korolev Albert2Barieva Enza3Zamaletdinov Roman4Kazan Federal University, Institute of geology and petroleum technologiesKazan Federal University, Institute of geology and petroleum technologiesKazan Federal University, Institute of geology and petroleum technologiesKazan State Power Engineering UniversityKazan State Power Engineering UniversityOil deposits of the Bashkirian stage of low-amplitude uplifts on the southwestern slope of the South Tatar arch are considered. It has been established that in the sections of the Bashkirian stage, only the upper two oil deposits are potentially productive. The reservoir rocks are composed of leached packstone-grainstone. The oil productivity of the upper oil reservoir is determined by the intensity of leaching of carbonate rocks and the nature of oil saturation, while the lower one is determined by the degree of oxidation of oils and the manifestation of secondary mineralization. Oxidation of oil from the lower reservoir oil deposit is associated with the penetration of peripheral stratal water enriched with sulphate ions and magnesium ions. Deposition of diagenetic calcite, dolomite and gypsum-anhydrite aggregates in previously formed leaching caverns leads to a decrease in porosity and connectivity within reservoir layers. For low-amplitude uplifts, there is a tendency for oil productivity to decrease as the proportion of diagenetic mineralization increases.https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/28/e3sconf_icape2024_03010.pdf |
| spellingShingle | Korolev Eduard Eskin Aleksey Korolev Albert Barieva Enza Zamaletdinov Roman Reasons for the low productivity of the Bashkirian stage oil deposits on the southwestern slope of the South Tatar arch E3S Web of Conferences |
| title | Reasons for the low productivity of the Bashkirian stage oil deposits on the southwestern slope of the South Tatar arch |
| title_full | Reasons for the low productivity of the Bashkirian stage oil deposits on the southwestern slope of the South Tatar arch |
| title_fullStr | Reasons for the low productivity of the Bashkirian stage oil deposits on the southwestern slope of the South Tatar arch |
| title_full_unstemmed | Reasons for the low productivity of the Bashkirian stage oil deposits on the southwestern slope of the South Tatar arch |
| title_short | Reasons for the low productivity of the Bashkirian stage oil deposits on the southwestern slope of the South Tatar arch |
| title_sort | reasons for the low productivity of the bashkirian stage oil deposits on the southwestern slope of the south tatar arch |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/28/e3sconf_icape2024_03010.pdf |
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