Evaluation of hydraulic tomography and data integration for improved estimates of suburface hydraulic parameters

水力层析成像（HT）是一种新兴的现场成像技术，可以对地下非均质性进行渗透率（K）和比贮量（Ss）成像。特别是，HT涉及（1）在井网上进行连续的含水层水力测试，以及（2）联合分析完整的数据集，以获得K和Ss分布的一致解释，并系统地减少相关的不确定性。以往的研究表明，HT数据本身包含的信息比单井抽水测试和联合解释方法是上级在描绘非均质性的常规数据分析方法。然而，最近的一项研究（例如，贝格和伊尔曼，2011年b）表明，HT需要进一步的研究和开发，以成像高度不均匀的多孔介质。

Hydraulic tomography (HT) is rapidly emerging as a new field technology to image the subsurface heterogeneity for both hydraulic conductivity (K) and specific storage (Ss). In particular, HT involves (1) conducting sequential aquifer hydraulic tests over a well network and (2) jointly analyzing the complete data set to obtain a consistent interpretation of the K and Ss distributions and to systematically reduce the associated uncertainties. Prior research has shown that HT data inherently contain more information than single well pumping tests and the joint interpretation method is superior to conventional data analysis methods in delineating the heterogeneities. However, a recent study (e.g., Berg and Illman, 2011b) suggests that HT requires further research and development to image highly heterogeneous porous media.