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DOI | 10.1029/2019GL086135 |
Changing Flow Paths Caused by Simultaneous Shearing and Fracturing Observed During Hydraulic Stimulation | |
Krietsch, H.1; Villiger, L.2; Doetsch, J.1; Gischig, V1,3; Evans, K. F.1; Brixel, B.1; Jalali, M. R.4; Loew, S.1; Giardini, D.1; Amann, F.4 | |
2020-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Germany |
英文摘要 | We monitored the seismohydromechanical rock mass response to high-pressure fluid injection during a decameter-scale hydraulic stimulation experiment in crystalline rock at the Grimsel Test Site, Switzerland. Time series recorded at two pressure monitoring locations show abrupt pressure increases that change in amplitude and appearance between subsequent stimulation cycles. Induced seismicity correlates with the propagation of one of these pressure fronts. Deformation data along the same shear zone shows permanent fracture dislocation preceded by strong transient fracture opening. We interpret these observations as nonlinear pressure diffusion along flow channels that reorganize in response to hydromechanical effects during stimulation. Combining these observations with the in situ stress field estimated before stimulation, we argue that the underlying hydromechanical processes involve mixed-mode stimulation with both Mode I and II/III fracture dislocation. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529107400054 |
WOS关键词 | FLUID-INJECTION ; HARD-ROCK ; MICROSEISMICITY ; SEISMICITY ; BEHAVIOR ; DEPTH |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279600 |
专题 | 气候变化 |
作者单位 | 1.Swiss Fed Inst Technol, Dept Earth Sci, Zurich, Switzerland; 2.Swiss Fed Inst Technol, Swiss Seismol Serv, Zurich, Switzerland; 3.CSD Ingenieure AG, Bern, Switzerland; 4.Rhein Westfal TH Aachen, Dept Engn Geol & Hydrogeol, Aachen, Germany |
推荐引用方式 GB/T 7714 | Krietsch, H.,Villiger, L.,Doetsch, J.,et al. Changing Flow Paths Caused by Simultaneous Shearing and Fracturing Observed During Hydraulic Stimulation[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(3). |
APA | Krietsch, H..,Villiger, L..,Doetsch, J..,Gischig, V.,Evans, K. F..,...&Amann, F..(2020).Changing Flow Paths Caused by Simultaneous Shearing and Fracturing Observed During Hydraulic Stimulation.GEOPHYSICAL RESEARCH LETTERS,47(3). |
MLA | Krietsch, H.,et al."Changing Flow Paths Caused by Simultaneous Shearing and Fracturing Observed During Hydraulic Stimulation".GEOPHYSICAL RESEARCH LETTERS 47.3(2020). |
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