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

水力层析成像(HT)是近年来迅速发展起来的一种新的地下非均质性成像技术，它既能反映水力传导性(K)，又能反映地下储水量(SS)。特别是，HT涉及(1)在井网上进行连续含水层水力试验，(2)联合分析完整的数据集，以获得对K和SS分布的一致解释，并系统地减少相关的不确定性。前人的研究表明，高温测井资料比单井抽水试验本身包含了更多的信息，联合解释方法在圈定非均质性方面优于传统的资料分析方法。然而，最近的一项研究(例如，Berg和Illman，2011b)表明，高温成像需要进一步的研究和开发来成像高度非均匀的多孔介质。

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.