Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR020588 |
Understanding the Hydromechanical Behavior of a Fault Zone From Transient Surface Tilt and Fluid Pressure Observations at Hourly Time Scales | |
Schuite, Jonathan1; Longuevergne, Laurent1; Bour, Olivier1; Burbey, Thomas J.2; Boudin, Frederick3; Lavenant, Nicolas1; Davy, Philippe1 | |
2017-12-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA |
英文摘要 | Flow through reservoirs such as fractured media is powered by head gradients which also generate measurable poroelastic deformation of the rock body. The combined analysis of surface deformation and subsurface pressure provides valuable insights of a reservoir's structure and hydromechanical properties, which are of interest for deep-seated CO2 or nuclear waste storage for instance. Among all surveying tools, surface tiltmeters offer the possibility to grasp hydraulically induced deformations over a broad range of time scales with a remarkable precision. Here we investigate the information content of transient surface tilt generated by the pressurization a kilometer scale subvertical fault zone. Our approach involves the combination of field data and results of a fully coupled poromechanical model. The signature of pressure changes in the fault zone due to pumping cycles is clearly recognizable in field tilt data and we aim to explain the peculiar features that appear in (1) tilt time series alone from a set of four instruments and 2) the ratio of tilt over pressure. We evidence that the shape of tilt measurements on both sides of a fault zone is sensitive to its diffusivity and its elastic modulus. The ratio of tilt over pressure predominantly encompasses information about the system's dynamic behavior and extent of the fault zone and allows separating contributions of flow in the different compartments. Hence, tiltmeters are well suited to characterize hydromechanical processes associated with fault zone hydrogeology at short time scales, where spaceborne surveying methods fail to recognize any deformation signal. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423299000032 |
WOS关键词 | HYDRAULIC-PROPERTIES ; WELL TESTS ; DEFORMATION ; FRACTURES ; FLOW ; DISPLACEMENTS ; PERMEABILITY ; TRANSPORT ; BOREHOLE ; INVERSION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
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/21857 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Rennes 1, UMR CNRS 6118, Geosci Rennes, Rennes, France; 2.Virginia Tech, Dept Geosci, Blacksburg, VA USA; 3.Ecole Normale Super, UMR CNRS 8538, Lab Geol, Paris, France |
推荐引用方式 GB/T 7714 | Schuite, Jonathan,Longuevergne, Laurent,Bour, Olivier,et al. Understanding the Hydromechanical Behavior of a Fault Zone From Transient Surface Tilt and Fluid Pressure Observations at Hourly Time Scales[J]. WATER RESOURCES RESEARCH,2017,53(12). |
APA | Schuite, Jonathan.,Longuevergne, Laurent.,Bour, Olivier.,Burbey, Thomas J..,Boudin, Frederick.,...&Davy, Philippe.(2017).Understanding the Hydromechanical Behavior of a Fault Zone From Transient Surface Tilt and Fluid Pressure Observations at Hourly Time Scales.WATER RESOURCES RESEARCH,53(12). |
MLA | Schuite, Jonathan,et al."Understanding the Hydromechanical Behavior of a Fault Zone From Transient Surface Tilt and Fluid Pressure Observations at Hourly Time Scales".WATER RESOURCES RESEARCH 53.12(2017). |
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