The Importance of Laminae for China Lacustrine Shale Oil Enrichment: A Review
The laminar structure of shale system has an important influence on the evaluation of hydrocarbon source rock quality, reservoir quality, and engineering quality, and it is receiving increasing attention. A systematic study of the lamina structure is not only of great scientific significance but als...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/4/1661 |
| _version_ | 1797621244000993280 |
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| author | Shang Xu Qiyang Gou |
| author_facet | Shang Xu Qiyang Gou |
| author_sort | Shang Xu |
| collection | DOAJ |
| description | The laminar structure of shale system has an important influence on the evaluation of hydrocarbon source rock quality, reservoir quality, and engineering quality, and it is receiving increasing attention. A systematic study of the lamina structure is not only of great scientific significance but also of vital practical importance for shale oil production. In this paper, the identification and description classification of shale laminae are first reviewed. Multiple scales and types indicate that a combination of different probe techniques is the basis for an accurate evaluation of shale laminar characteristics. The influence of laminae on shale reservoir, oil-bearing, mobility, and fracability properties is discussed systematically. A comparative analysis shows that shale systems with well-developed lamination facilitate the development of bedding fractures, thus improving the shale storage space. The average pore size and pore connectivity are also enhanced. These factors synergistically control the superior retention and flow capacity of shale oil in laminated shales. In such conditions, the high production of shale oil wells can still be achieved even if complex networks of fracturing cracks are difficult to form in shale systems with well-developed lamination. This work is helpful to reveal the enrichment mechanism of shale oil and clarify the high-yield law of hydrocarbons, so as to guide the selection of sweet spots. |
| first_indexed | 2024-03-11T08:54:03Z |
| format | Article |
| id | doaj.art-98a69dcb738945bc946c6d017851d66e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T08:54:03Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-98a69dcb738945bc946c6d017851d66e2023-11-16T20:16:03ZengMDPI AGEnergies1996-10732023-02-01164166110.3390/en16041661The Importance of Laminae for China Lacustrine Shale Oil Enrichment: A ReviewShang Xu0Qiyang Gou1School of Geosciences, China University of Petroleum, Qingdao 266580, ChinaKey Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, ChinaThe laminar structure of shale system has an important influence on the evaluation of hydrocarbon source rock quality, reservoir quality, and engineering quality, and it is receiving increasing attention. A systematic study of the lamina structure is not only of great scientific significance but also of vital practical importance for shale oil production. In this paper, the identification and description classification of shale laminae are first reviewed. Multiple scales and types indicate that a combination of different probe techniques is the basis for an accurate evaluation of shale laminar characteristics. The influence of laminae on shale reservoir, oil-bearing, mobility, and fracability properties is discussed systematically. A comparative analysis shows that shale systems with well-developed lamination facilitate the development of bedding fractures, thus improving the shale storage space. The average pore size and pore connectivity are also enhanced. These factors synergistically control the superior retention and flow capacity of shale oil in laminated shales. In such conditions, the high production of shale oil wells can still be achieved even if complex networks of fracturing cracks are difficult to form in shale systems with well-developed lamination. This work is helpful to reveal the enrichment mechanism of shale oil and clarify the high-yield law of hydrocarbons, so as to guide the selection of sweet spots.https://www.mdpi.com/1996-1073/16/4/1661shale oillamina structureenrichment mechanismmovable oilfracability |
| spellingShingle | Shang Xu Qiyang Gou The Importance of Laminae for China Lacustrine Shale Oil Enrichment: A Review Energies shale oil lamina structure enrichment mechanism movable oil fracability |
| title | The Importance of Laminae for China Lacustrine Shale Oil Enrichment: A Review |
| title_full | The Importance of Laminae for China Lacustrine Shale Oil Enrichment: A Review |
| title_fullStr | The Importance of Laminae for China Lacustrine Shale Oil Enrichment: A Review |
| title_full_unstemmed | The Importance of Laminae for China Lacustrine Shale Oil Enrichment: A Review |
| title_short | The Importance of Laminae for China Lacustrine Shale Oil Enrichment: A Review |
| title_sort | importance of laminae for china lacustrine shale oil enrichment a review |
| topic | shale oil lamina structure enrichment mechanism movable oil fracability |
| url | https://www.mdpi.com/1996-1073/16/4/1661 |
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