Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR020852 |
Inferring subsurface heterogeneity from push-drift tracer tests | |
Hansen, Scott K.1; Vesselinov, Velimir V.1; Reimus, Paul W.2; Lu, Zhiming1 | |
2017-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We consider the late-time tailing in a tracer test performed with a push-drift methodology (i.e., quasi-radial injection followed by drift under natural gradient). Numerical simulations of such tests are performed on 1000 multi-Gaussian 2-D log-hydraulic conductivity field realizations of varying heterogeneity, each under eight distinct mean flow directions. The ensemble pdfs of solute return times are found to exhibit power law tails for each considered variance of the log-hydraulic conductivity field, sigma(2)(inK). The tail exponent is found to relate straightforwardly to sigma(2)(inK) and, within the parameter space we explored, to be independent of push-phase pumping rate, pumping duration, and local-scale dispersivity. We conjecture that individual push-drift tracer tests in wells with screened intervals much greater than the vertical correlation length of the aquifer will exhibit quasi-ergodicity and that their tail exponent may be used to infer sigma(2)(inK). We calibrate a predictive relationship of this sort from our Monte Carlo study, and apply it to data from a push-drift test performed at a site of approximately known heterogeneity-closely matching the existing best estimate of heterogeneity. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407895000062 |
WOS关键词 | SINGLE-WELL ; BEHAVIOR ; VELOCITY ; AQUIFER |
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/21952 |
专题 | 资源环境科学 |
作者单位 | 1.Los Alamos Natl Lab, Computat Earth Sci Grp EES 16, Los Alamos, NM 87545 USA; 2.Los Alamos Natl Lab, Earth Syst Observat Grp EES 14, Los Alamos, NM 87545 USA |
推荐引用方式 GB/T 7714 | Hansen, Scott K.,Vesselinov, Velimir V.,Reimus, Paul W.,et al. Inferring subsurface heterogeneity from push-drift tracer tests[J]. WATER RESOURCES RESEARCH,2017,53(7). |
APA | Hansen, Scott K.,Vesselinov, Velimir V.,Reimus, Paul W.,&Lu, Zhiming.(2017).Inferring subsurface heterogeneity from push-drift tracer tests.WATER RESOURCES RESEARCH,53(7). |
MLA | Hansen, Scott K.,et al."Inferring subsurface heterogeneity from push-drift tracer tests".WATER RESOURCES RESEARCH 53.7(2017). |
条目包含的文件 | 条目无相关文件。 |
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