Conditions of sedimentation and distribution of organic matter in the Lower-Middle Jurassic complex of the South-Western part of the West Siberian oil and gas basin
The article is devoted to the variation of generation potential of the Lower-Middle Jurassic organic matter in the Karabash area (South-Western part of the West Siberian basin) depending on facies and sedimentary cyclisity. Based on geochemical and lithological core studies, specific geochemical fea...
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| Format: | Article |
| Language: | English |
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Georesursy Ltd.
2022-05-01
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| Series: | Georesursy |
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| Online Access: | https://geors.ru/archive/article/1160/ |
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| author | Ivan K. Komkov Alina V. Mordasova Marina V. Dakhnova Maria A. Bolshakova Svetlana V. Mozhegova Natalia V. Pronina |
| author_facet | Ivan K. Komkov Alina V. Mordasova Marina V. Dakhnova Maria A. Bolshakova Svetlana V. Mozhegova Natalia V. Pronina |
| author_sort | Ivan K. Komkov |
| collection | DOAJ |
| description | The article is devoted to the variation of generation potential of the Lower-Middle Jurassic organic matter in the Karabash area (South-Western part of the West Siberian basin) depending on facies and sedimentary cyclisity. Based on geochemical and lithological core studies, specific geochemical features of organic matter established for main facies groups of Early-Middle Jurassic in the study area. The best generation potential inherent in deposits of swamps, swampy floodplains and tidal plains. These facies groups characterized by predominance of the continental organic matter and considered to gas source rocks. However, macerals composition, kinetic spectra and biomarker analysis show the presence also of marine organic matter. Some facies groups, such as flooded swamps and swampy floodplains has potential to generate hydrocarbons due to preservation of liptinites with high hydrogen index. Cyclic analysis with basics of sequence stratigraphy of the continental deposits allow tracing the correlation between generation potential and relative sea level changes. |
| first_indexed | 2024-04-12T14:16:59Z |
| format | Article |
| id | doaj.art-f744316979bf4278bbc8b0c545c748a5 |
| institution | Directory Open Access Journal |
| issn | 1608-5043 1608-5078 |
| language | English |
| last_indexed | 2024-04-12T14:16:59Z |
| publishDate | 2022-05-01 |
| publisher | Georesursy Ltd. |
| record_format | Article |
| series | Georesursy |
| spelling | doaj.art-f744316979bf4278bbc8b0c545c748a52022-12-22T03:29:41ZengGeoresursy Ltd.Georesursy1608-50431608-50782022-05-0124215017110.18599/grs.2022.2.15Conditions of sedimentation and distribution of organic matter in the Lower-Middle Jurassic complex of the South-Western part of the West Siberian oil and gas basin Ivan K. Komkov0Alina V. Mordasova1Marina V. Dakhnova2Maria A. Bolshakova3Svetlana V. Mozhegova4Natalia V. Pronina5Lomonosov Moscow State UniversityLomonosov Moscow State UniversityAll-Russian Research Geological Oil Institute (VNIGNI)Lomonosov Moscow State UniversityAll-Russian Research Geological Oil Institute (VNIGNI)Lomonosov Moscow State UniversityThe article is devoted to the variation of generation potential of the Lower-Middle Jurassic organic matter in the Karabash area (South-Western part of the West Siberian basin) depending on facies and sedimentary cyclisity. Based on geochemical and lithological core studies, specific geochemical features of organic matter established for main facies groups of Early-Middle Jurassic in the study area. The best generation potential inherent in deposits of swamps, swampy floodplains and tidal plains. These facies groups characterized by predominance of the continental organic matter and considered to gas source rocks. However, macerals composition, kinetic spectra and biomarker analysis show the presence also of marine organic matter. Some facies groups, such as flooded swamps and swampy floodplains has potential to generate hydrocarbons due to preservation of liptinites with high hydrogen index. Cyclic analysis with basics of sequence stratigraphy of the continental deposits allow tracing the correlation between generation potential and relative sea level changes.https://geors.ru/archive/article/1160/generation potentialgeochemistry of organic mattershercalin formationtyumen formationkarabash areawest siberian basinlower-middle jurassicfaciescyclisity of the continental sedimentation |
| spellingShingle | Ivan K. Komkov Alina V. Mordasova Marina V. Dakhnova Maria A. Bolshakova Svetlana V. Mozhegova Natalia V. Pronina Conditions of sedimentation and distribution of organic matter in the Lower-Middle Jurassic complex of the South-Western part of the West Siberian oil and gas basin Georesursy generation potential geochemistry of organic matter shercalin formation tyumen formation karabash area west siberian basin lower-middle jurassic facies cyclisity of the continental sedimentation |
| title | Conditions of sedimentation and distribution of organic matter in the Lower-Middle Jurassic complex of the South-Western part of the West Siberian oil and gas basin |
| title_full | Conditions of sedimentation and distribution of organic matter in the Lower-Middle Jurassic complex of the South-Western part of the West Siberian oil and gas basin |
| title_fullStr | Conditions of sedimentation and distribution of organic matter in the Lower-Middle Jurassic complex of the South-Western part of the West Siberian oil and gas basin |
| title_full_unstemmed | Conditions of sedimentation and distribution of organic matter in the Lower-Middle Jurassic complex of the South-Western part of the West Siberian oil and gas basin |
| title_short | Conditions of sedimentation and distribution of organic matter in the Lower-Middle Jurassic complex of the South-Western part of the West Siberian oil and gas basin |
| title_sort | conditions of sedimentation and distribution of organic matter in the lower middle jurassic complex of the south western part of the west siberian oil and gas basin |
| topic | generation potential geochemistry of organic matter shercalin formation tyumen formation karabash area west siberian basin lower-middle jurassic facies cyclisity of the continental sedimentation |
| url | https://geors.ru/archive/article/1160/ |
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