Thermomechanical Behavior of Late Indo-Chinese Granodiorite under High Temperature and Pressure
This study investigates the influence of temperature, effective stress, and rock fracture on the bulk modulus and Biot’s coefficient of granodiorite from a hot dry rock geothermal reservoir using the triaxial compression test. Three types of representative granodiorite samples were chosen for compar...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/6793191 |
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| author | Yanjun Zhang Shuren Hao Lin Bai Ziwang Yu Jianing Zhang Jingtao Fang |
| author_facet | Yanjun Zhang Shuren Hao Lin Bai Ziwang Yu Jianing Zhang Jingtao Fang |
| author_sort | Yanjun Zhang |
| collection | DOAJ |
| description | This study investigates the influence of temperature, effective stress, and rock fracture on the bulk modulus and Biot’s coefficient of granodiorite from a hot dry rock geothermal reservoir using the triaxial compression test. Three types of representative granodiorite samples were chosen for comparative experiments. The experiments were conducted with 0–55 MPa effective stress under cyclic loading. Results show that bulk modulus can continuously increase with the increase in effective stress at a constant temperature. The influencing law on Biot’s coefficient is opposite that on bulk modulus. Interestingly, the temperature effects on the drained bulk modulus and Biot’s coefficient depend on the effective stress. With regard to rock fractures, temperature and effective stress exert similar effects on the Biot’s coefficients and bulk moduli of the samples compared with those of intact rock. The data of this experiment have a wide range of applications because most of the reservoir rocks in dry-hot-rock geothermal system have lithology of granite or granodiorite. The change law of rock modulus and Biot’s coefficient with the temperature and pressure in this experiment provide the data basis for the future simulation calculation making the considered factors more comprehensive and the results closer to the real situation. |
| format | Article |
| id | doaj-art-6106605e66184c9ead37c76ec1b57983 |
| institution | Kabale University |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-6106605e66184c9ead37c76ec1b579832025-02-03T07:24:28ZengWileyJournal of Engineering2314-49042314-49122018-01-01201810.1155/2018/67931916793191Thermomechanical Behavior of Late Indo-Chinese Granodiorite under High Temperature and PressureYanjun Zhang0Shuren Hao1Lin Bai2Ziwang Yu3Jianing Zhang4Jingtao Fang5College of Construction Engineering, Jilin University, Changchun 130026, ChinaCollege of Construction Engineering, Jilin University, Changchun 130026, ChinaCollege of Applied Technology, Jilin University, Changchun 130026, ChinaCollege of Construction Engineering, Jilin University, Changchun 130026, ChinaCollege of Construction Engineering, Jilin University, Changchun 130026, ChinaGeological Survey Institute of Liaoning Province, No. 42, Ningshan Middle Road, Huanggu District, Shenyang City, Liaoning Province, ChinaThis study investigates the influence of temperature, effective stress, and rock fracture on the bulk modulus and Biot’s coefficient of granodiorite from a hot dry rock geothermal reservoir using the triaxial compression test. Three types of representative granodiorite samples were chosen for comparative experiments. The experiments were conducted with 0–55 MPa effective stress under cyclic loading. Results show that bulk modulus can continuously increase with the increase in effective stress at a constant temperature. The influencing law on Biot’s coefficient is opposite that on bulk modulus. Interestingly, the temperature effects on the drained bulk modulus and Biot’s coefficient depend on the effective stress. With regard to rock fractures, temperature and effective stress exert similar effects on the Biot’s coefficients and bulk moduli of the samples compared with those of intact rock. The data of this experiment have a wide range of applications because most of the reservoir rocks in dry-hot-rock geothermal system have lithology of granite or granodiorite. The change law of rock modulus and Biot’s coefficient with the temperature and pressure in this experiment provide the data basis for the future simulation calculation making the considered factors more comprehensive and the results closer to the real situation.http://dx.doi.org/10.1155/2018/6793191 |
| spellingShingle | Yanjun Zhang Shuren Hao Lin Bai Ziwang Yu Jianing Zhang Jingtao Fang Thermomechanical Behavior of Late Indo-Chinese Granodiorite under High Temperature and Pressure Journal of Engineering |
| title | Thermomechanical Behavior of Late Indo-Chinese Granodiorite under High Temperature and Pressure |
| title_full | Thermomechanical Behavior of Late Indo-Chinese Granodiorite under High Temperature and Pressure |
| title_fullStr | Thermomechanical Behavior of Late Indo-Chinese Granodiorite under High Temperature and Pressure |
| title_full_unstemmed | Thermomechanical Behavior of Late Indo-Chinese Granodiorite under High Temperature and Pressure |
| title_short | Thermomechanical Behavior of Late Indo-Chinese Granodiorite under High Temperature and Pressure |
| title_sort | thermomechanical behavior of late indo chinese granodiorite under high temperature and pressure |
| url | http://dx.doi.org/10.1155/2018/6793191 |
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