DOI: 10.5194/hess-23-4541-2019
论文题名: An extended trajectory-mechanics approach for calculating the path of a pressure transient: Travel-time tomography
作者: Vasco D.W. ; Doetsch J. ; Brauchler R.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2019
卷: 23, 期: 11 起始页码: 4541
结束页码: 4560
语种: 英语
Scopus关键词: Porous materials
; Quantum theory
; Tomography
; Analytic expressions
; Governing equations
; High permeability
; Imaging algorithm
; Pressure transient
; Reference modeling
; Tomographic imaging
; Travel time tomography
; Trajectories
; algorithm
; detection method
; hydraulic head
; permeability
; tomography
; trajectory
; travel time
; Switzerland
英文摘要: The application of a technique from quantum dynamics to the governing equation for hydraulic head leads to a trajectory-based solution that is valid for a general porous medium. The semi-analytic expressions for propagation path and velocity of a change in hydraulic head form the basis of a travel-time tomographic imaging algorithm. An application of the imaging algorithm to synthetic arrival times reveals that a cross-well inversion based upon the extended trajectories correctly reproduces the magnitude of a reference model, improving upon an existing asymptotic approach. An inversion of hydraulic head arrival times from cross-well slug tests at the Widen field site in northern Switzerland captures a general decrease in permeability with depth, which is in agreement with previous studies, but also indicates the presence of a high-permeability feature in the upper portion of the cross-well plane. © Author(s) 2019. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162862
Appears in Collections: 气候变化与战略
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作者单位: Vasco, D.W., Energy Geosciences Division, Lawrence Berkeley National Laboratory, Building 74, 1 Cyclotron Road, Berkeley, CA 94720, United States; Doetsch, J., Department of Earth Sciences, ETH Zurich, Zurich, Switzerland; Brauchler, R., Waste Disposal and Hydrogeology, AF-Consult Switzerland Ltd, Täfernstrasse 26, Baden, 5405, Switzerland
Recommended Citation:
Vasco D.W.,Doetsch J.,Brauchler R.. An extended trajectory-mechanics approach for calculating the path of a pressure transient: Travel-time tomography[J]. Hydrology and Earth System Sciences,2019-01-01,23(11)