A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic Fracturing
Hot dry rock (HDR) geothermal energy has many advantages, such as being renewable, clean, widely distributed, and without time and weather limitations. Hydraulic fracturing is usually needed for the exploitation of HDR geothermal energy. It has many hidden faults in the reservoir/caprock sequences....
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9997597 |
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| author | Zhiyong Niu Shiquan Wang Hongrui Ma Songbao Feng Hengjie Luan Yibin Yang |
| author_facet | Zhiyong Niu Shiquan Wang Hongrui Ma Songbao Feng Hengjie Luan Yibin Yang |
| author_sort | Zhiyong Niu |
| collection | DOAJ |
| description | Hot dry rock (HDR) geothermal energy has many advantages, such as being renewable, clean, widely distributed, and without time and weather limitations. Hydraulic fracturing is usually needed for the exploitation of HDR geothermal energy. It has many hidden faults in the reservoir/caprock sequences. Injecting fluid into underground formations during hydraulic fracturing often induces fault slip and leads to earthquakes. Therefore, to well understand the induced fault slip and earthquakes is important for the applications and development of HDR geothermal exploitation. In this study, we investigated the hazardous injection area of the induced earthquakes during hydraulic fracturing. The study was based on a hydraulic fracturing test in Qiabuqia geothermal field in China. According to the field, a fault-surrounding rock-fracturing region system was developed to study the influences of fluid injection on the stability of the specific fault. A total of 60 hydraulic fracturing regions and 180 numerical experiments were designed. The results revealed that the hazardous injection regions that threaten the fault’s stability were near to the fault and concentrated on the following four areas: (a) above the top of the fault in underlying strata; (b) above the top of the hanging wall of the fault in underlying strata; (c) near to the fault planes in both footwall and hanging wall; (d) at the bottom of the footwall of the fault in underlying strata. The hazardous injection area can be controlled effectively by adjusting the injection pressure. |
| format | Article |
| id | doaj-art-7997016cc31e4c61bbe7695abab559ee |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-7997016cc31e4c61bbe7695abab559ee2025-01-02T22:51:08ZengWileyShock and Vibration1875-92032021-01-01202110.1155/2021/99975979997597A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic FracturingZhiyong Niu0Shiquan Wang1Hongrui Ma2Songbao Feng3Hengjie Luan4Yibin Yang5School of Resources and Civil EngineeringSchool of Resources and Civil EngineeringSchool of Resources and Civil EngineeringSchool of Resources and Civil EngineeringCollege of Energy and Mining EngineeringWuhu Natural Resources and Planning BureauHot dry rock (HDR) geothermal energy has many advantages, such as being renewable, clean, widely distributed, and without time and weather limitations. Hydraulic fracturing is usually needed for the exploitation of HDR geothermal energy. It has many hidden faults in the reservoir/caprock sequences. Injecting fluid into underground formations during hydraulic fracturing often induces fault slip and leads to earthquakes. Therefore, to well understand the induced fault slip and earthquakes is important for the applications and development of HDR geothermal exploitation. In this study, we investigated the hazardous injection area of the induced earthquakes during hydraulic fracturing. The study was based on a hydraulic fracturing test in Qiabuqia geothermal field in China. According to the field, a fault-surrounding rock-fracturing region system was developed to study the influences of fluid injection on the stability of the specific fault. A total of 60 hydraulic fracturing regions and 180 numerical experiments were designed. The results revealed that the hazardous injection regions that threaten the fault’s stability were near to the fault and concentrated on the following four areas: (a) above the top of the fault in underlying strata; (b) above the top of the hanging wall of the fault in underlying strata; (c) near to the fault planes in both footwall and hanging wall; (d) at the bottom of the footwall of the fault in underlying strata. The hazardous injection area can be controlled effectively by adjusting the injection pressure.http://dx.doi.org/10.1155/2021/9997597 |
| spellingShingle | Zhiyong Niu Shiquan Wang Hongrui Ma Songbao Feng Hengjie Luan Yibin Yang A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic Fracturing Shock and Vibration |
| title | A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic Fracturing |
| title_full | A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic Fracturing |
| title_fullStr | A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic Fracturing |
| title_full_unstemmed | A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic Fracturing |
| title_short | A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic Fracturing |
| title_sort | numerical investigation of the hazardous injection area of induced earthquake during hydraulic fracturing |
| url | http://dx.doi.org/10.1155/2021/9997597 |
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