CoFIS and TELog: New downhole tools for characterizing dispersion processes in aquifers by single-well injection-withdrawal tracer tests

被引：7

作者：

Gouze, Philippe ^{[1
]}

Leprovost, Richard ^{[1
]}

Poidras, Thierry ^{[1
]}

Le Borgne, Tanguy ^{[2
]}

Lods, Gerard ^{[1
]}

Pezard, Philippe A. ^{[1
]}

机构：

[1] Univ Montpellier 2, CNRS, UMR 5243, F-34095 Montpellier 5, France

[2] Univ Rennes 1, CNRS, UMR 6118, F-35042 Rennes, France

来源：

COMPTES RENDUS GEOSCIENCE | 2009年 / 341卷 / 10-11期

关键词：

Single-well injection-withdrawal tracer tests; Dual-packer probe; Fluorescent optical sensors; Dispersion; Non-Fickian behaviour; RATE MASS-TRANSFER; SOLUTE TRANSPORT; FRACTURED MEDIA; DOUBLE-POROSITY; TIME BEHAVIOR; POROUS-MEDIA; FLOW; DIFFUSION;

D O I：

10.1016/j.crte.2009.07.012

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Contaminant migration in aquifers is one of the most debated issues in hydrogeology, as most experimental results display large deviations from the standard (asymptotic) Fickian dispersion theories. Multi-scale investigation and high-resolution sensors are required to determine the origin of non-asymptotic dispersion and validate models. For this, a set of multi-scale Single-Well Injection-Withdrawal (SWIW) tracer tests using a new dual-packer probe CoFIS, including a high resolution optical sensor TELog, are presented. When compared to standard techniques such as salinity measurements, it is shown that high-resolution optical measurements allow an improved characterization of the long-lasting non-asymptotic dispersion mechanisms. To cite this article: P Gouze et al., C. R. Geoscience 341 (2009). (C) 2009 Published by Elsevier Masson SAS on behalf of Academie des sciences.

引用

页码：965 / 975

页数：11

共 32 条

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