Analysis of impact pressure, rock-breaking effect, and ground vibration induced by the disposable CO2 fracturing tube
文献类型：期刊论文
| 作者 | Yu, Chong2,3; Ma, Yongan2,3; Li, Haibo2,3 ; Deng, Shouchun2,3; Hao, Yafei4; Zhu, Kuan1,5
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| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 16期号:8页码:3099-3121 |
| 关键词 | Disposable tube Liquid CO2 Impact pressure Hole spacing Vibration effect Cardox tube |
| ISSN号 | 1674-7755 |
| DOI | 10.1016/j.jrmge.2024.04.0121674-7755 |
| 英文摘要 | The technology of expansion fracturing with liquid CO2 (EFLCO2) has attracted increasing attention due to reduced vibration and damage. The disposable fracturing tube has been developed and is gradually replacing the Cardox tube. However, there is a lack of impact pressure testing of disposable tubes under real working conditions, selection of gas explosion design parameters, and systematic analysis of blasting vibration. This limitation has constrained the widespread application of disposable fracturing tubes in engineering. A joint monitoring of the pressure-time curves in the disposable tubes and boreholes was conducted. The rock-breaking effect of varying hole spacing parameters in the EFLCO2 design was analyzed, and a systematic study was carried out on the vibration peak value, frequency, and energy characteristics. The results show that (1) the pressure distribution characteristics, stress peak value, and duration in the disposable tubes are different from those of Cardox tubes, which show multi-peak distribution, low-pressure peak value, and short duration. The correlation between the pressure in the disposable tube, filling pressure, and liquid CO2 weight is established, and a theoretical calculation method for the borehole wall pressure is proposed; (2) The hole spacing in rocks of different hardness is suggested; and (3) At the same scale distance, the peak particle velocity (PPV) caused by EFLCO2 (PPVCO2) is significantly smaller than that caused by blasting (PPVexplosive). The ratio of PPVexplosive to PPVCO2 is a power function related to scale distance, and a distance-related zonality exist in this relationship. The frequency composition of the vibration signal caused by EFLCO2 is relatively simple with a narrow frequency band. Its PPV and energy are mainly concentrated in the low-frequency band. This research contributes to the optimization of disposable fracturing tubes, gas explosion design, and vibration hazard control. (c) 2024 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). |
| 资助项目 | National Key R&D Program of China[2020YFA0711802] ; Wuhan Science and Technology Bureau of China[2023020201010081] ; National Nature Science Foundation of China[U22A20239] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001298998000001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42409]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yu, Chong |
| 作者单位 | 1.Gezhouba EXPL Hunan Technol Co Ltd, Liuyang 410300, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Explosives Co Ltd, Changsha 410000, Peoples R China 5.Wuhan Univ Sci & Technol, Wuhan 430000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Chong,Ma, Yongan,Li, Haibo,et al. Analysis of impact pressure, rock-breaking effect, and ground vibration induced by the disposable CO2 fracturing tube[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2024,16(8):3099-3121. |
| APA | Yu, Chong,Ma, Yongan,Li, Haibo,Deng, Shouchun,Hao, Yafei,&Zhu, Kuan.(2024).Analysis of impact pressure, rock-breaking effect, and ground vibration induced by the disposable CO2 fracturing tube.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,16(8),3099-3121. |
| MLA | Yu, Chong,et al."Analysis of impact pressure, rock-breaking effect, and ground vibration induced by the disposable CO2 fracturing tube".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 16.8(2024):3099-3121. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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