Mechanical Properties of Shale-Reservoir Rocks Based on Stress–Strain Curves and Mineral Content
The evaluation of rock mechanic characteristics of shale reservoir is the key for the success of fracturing. Several limitations such as complex lithology can affect the accuracy of the rock mechanic property computation. In this research, the mechanical rock properties of shale reservoirs were anal...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2022/2562872 |
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| author | Wen-Tie Sun Zhong-Hui Li Yi-Shan Lou Liang Zhu Hui-Mei Wu Arnaud Regis Kamgue Lenwoue Qin Liu |
| author_facet | Wen-Tie Sun Zhong-Hui Li Yi-Shan Lou Liang Zhu Hui-Mei Wu Arnaud Regis Kamgue Lenwoue Qin Liu |
| author_sort | Wen-Tie Sun |
| collection | DOAJ |
| description | The evaluation of rock mechanic characteristics of shale reservoir is the key for the success of fracturing. Several limitations such as complex lithology can affect the accuracy of the rock mechanic property computation. In this research, the mechanical rock properties of shale reservoirs were analyzed based on experimental tests including shale-reservoir mineral composition, uniaxial compressive strength, and triaxial compression tests. The results showed that (1) the difference in mineral composition leads to easier fracturing of sand shale reservoirs compared with pure shale reservoir. (2) Under uniaxial conditions, the rock mechanical parameters along the vertical bedding direction of sand shale reservoirs are better than pure shale reservoir parameters. The mechanical properties of shale reservoirs in parallel bedding direction are less affected by lithology. Under triaxial conditions, the confining pressure increases more than 4.0 times with the compressive strength of rocks, and the rock Young’s modulus in the parallel bedding direction is higher compared with the vertical bedding direction. (3) Rock failure mode is mainly subdivided into cutting and splitting modes, and the bedding features of rock mechanic properties highly influence the drilling and fracturing operations. This study offers guidelines for the optimization of the drilling and fracturing process based on accurate evaluation of the rock mechanical properties. |
| format | Article |
| id | doaj-art-e2ca0d8e66a44a5dbbb3f30c35df4ba1 |
| institution | DOAJ |
| issn | 1468-8123 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-e2ca0d8e66a44a5dbbb3f30c35df4ba12025-08-20T03:21:06ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/2562872Mechanical Properties of Shale-Reservoir Rocks Based on Stress–Strain Curves and Mineral ContentWen-Tie Sun0Zhong-Hui Li1Yi-Shan Lou2Liang Zhu3Hui-Mei Wu4Arnaud Regis Kamgue Lenwoue5Qin Liu6Department of Petroleum EngineeringDepartment of Petroleum EngineeringDepartment of Petroleum EngineeringDepartment of Petroleum EngineeringDepartment of Petroleum EngineeringDepartment of Petroleum EngineeringOil & Gas Engineering InstituteThe evaluation of rock mechanic characteristics of shale reservoir is the key for the success of fracturing. Several limitations such as complex lithology can affect the accuracy of the rock mechanic property computation. In this research, the mechanical rock properties of shale reservoirs were analyzed based on experimental tests including shale-reservoir mineral composition, uniaxial compressive strength, and triaxial compression tests. The results showed that (1) the difference in mineral composition leads to easier fracturing of sand shale reservoirs compared with pure shale reservoir. (2) Under uniaxial conditions, the rock mechanical parameters along the vertical bedding direction of sand shale reservoirs are better than pure shale reservoir parameters. The mechanical properties of shale reservoirs in parallel bedding direction are less affected by lithology. Under triaxial conditions, the confining pressure increases more than 4.0 times with the compressive strength of rocks, and the rock Young’s modulus in the parallel bedding direction is higher compared with the vertical bedding direction. (3) Rock failure mode is mainly subdivided into cutting and splitting modes, and the bedding features of rock mechanic properties highly influence the drilling and fracturing operations. This study offers guidelines for the optimization of the drilling and fracturing process based on accurate evaluation of the rock mechanical properties.http://dx.doi.org/10.1155/2022/2562872 |
| spellingShingle | Wen-Tie Sun Zhong-Hui Li Yi-Shan Lou Liang Zhu Hui-Mei Wu Arnaud Regis Kamgue Lenwoue Qin Liu Mechanical Properties of Shale-Reservoir Rocks Based on Stress–Strain Curves and Mineral Content Geofluids |
| title | Mechanical Properties of Shale-Reservoir Rocks Based on Stress–Strain Curves and Mineral Content |
| title_full | Mechanical Properties of Shale-Reservoir Rocks Based on Stress–Strain Curves and Mineral Content |
| title_fullStr | Mechanical Properties of Shale-Reservoir Rocks Based on Stress–Strain Curves and Mineral Content |
| title_full_unstemmed | Mechanical Properties of Shale-Reservoir Rocks Based on Stress–Strain Curves and Mineral Content |
| title_short | Mechanical Properties of Shale-Reservoir Rocks Based on Stress–Strain Curves and Mineral Content |
| title_sort | mechanical properties of shale reservoir rocks based on stress strain curves and mineral content |
| url | http://dx.doi.org/10.1155/2022/2562872 |
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