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首页> 外文期刊>Journal of Hydrology >Tracer tests for the investigation of heterogeneous porous media and stochastic modelling of flow and transport - a review of some recent developments
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Tracer tests for the investigation of heterogeneous porous media and stochastic modelling of flow and transport - a review of some recent developments

机译：示踪剂测试，用于研究非均质多孔介质和流动与运输的随机模型-最近的一些进展的回顾

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In heterogeneous porous aquifers, simulations and predictions of groundwater flow and solute (contaminant) transport require detailed knowledge of aquifer parameters and their spatial distribution. In most cases this information cannot easily be obtained at acceptable expenses. In general, subsurface investigation techniques are applied only at borehole locations, and the parameter values measured have to be regionalized in order to obtain continuous parameter fields. Geophysical measurements very often yield unsatisfactory results due to resolution, detection range and parameterisation problems. In such situations tracer tests offer the possibility to efficiently investigate the aquifer between the wells and to characterize the relevant aquifer properties based on effective parameter values. Tracer tests can be performed at laboratory and field-scales with depth integrated (two-dimensional) or multilevel (three-dimensional) set-ups, and under natural or forced hydraulic gradient conditions. Both non-reactive and reactive tracer compounds can be used. This contribution covers and gives examples on the following topics: depth integrated and three-dimensional natural and forced gradient tracer test methods together with their fields of application at different transport scales, novel tracer compounds and applications, high resolution multilevel-multitracer methods and high resolution multilevel-multitracer equipment, as well as approaches to evaluate tracer experiments and to quantify tracer transport. In this way the paper shows some recent trends in tracer based subsurface investigation and emphasizes the advantages and importance of modern tracer testing. (C) 2004 Published by Elsevier B.V.
机译：在非均质多孔含水层中，对地下水流量和溶质（污染物）运移的模拟和预测需要对含水层参数及其空间分布有详细的了解。在大多数情况下，以可接受的费用无法轻松获得此信息。通常，地下勘测技术仅应用于井眼位置，并且必须对测得的参数值进行分区，以获得连续的参数场。由于分辨率，检测范围和参数设置问题，地球物理测量结果常常无法令人满意。在这种情况下，示踪剂测试提供了有效研究井间含水层并基于有效参数值表征相关含水层特性的可能性。示踪剂测试可以在实验室和现场规模下进行，具有深度集成（二维）或多层（三维）设置，并且可以在自然或强制水力梯度条件下进行。非反应性和反应性示踪剂化合物均可使用。该贡献涵盖并提供了以下主题的示例：深度集成和三维自然和强制梯度示踪剂测试方法及其在不同运输规模下的应用领域，新型示踪剂化合物和应用，高分辨率多级多示踪剂方法和高分辨率多级多示踪剂设备以及评估示踪剂实验和量化示踪剂传输的方法。通过这种方式，本文显示了基于示踪剂的地下研究的一些最新趋势，并强调了现代示踪剂测试的优势和重要性。 （C）2004由Elsevier B.V.发布

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