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

评估水力层析成像和数据集成，以改进地下水力参数的估计

• 批准号: 446512-2012
• 负责人: Illman, Walter
• 金额: $ 1.63万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=575243
• 关键词: Evaluation; hydraulic; tomography; data; integration

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. The overall goal of this project is to develop a HT at the University of Waterloo (UW) in partnership with AMEC Enviroment and Infrastructure, one of the world's leading engineering, project management, and consultancy companies. Specific objectives are: 1) to demonstrate that HT is superior to conventional methods for estimating spatial distribution of hydrogeologic properties (i.e., K and Ss); 2) to investigate whether HT results can yield finer scale details to heterogeneity through the fusion of complementary geological/geophysical data; 3) to develop guidance for HT field implementation and compare costs associated with HT and conventional methods; 4) to explore the utility of HT technology in the Canadian market; and 5) to train highly qualified personnel (HQP). The main benefit from this project that is expected to accrue to the Canadian industry, the UW, and the discipline is the development of a new method to delineate subsurface heterogeneity in hydraulic parameters. This should lead to improved reliability of groundwater flow and transport models and better designs for: 1) groundwater extraction and storage (e.g., Aquifer Storage & Recovery operations); 2) groundwater remediation; 3) fossil fuel extraction; 4) waste disposal sites; 5) in situ metal leaching with acids, etc.

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。 该项目的总体目标是与世界领先的工程、项目管理和咨询公司之一AMEC环境和基础设施合作，在滑铁卢大学（UW）开发HT。具体目标是：1）证明HT上级用于估计水文地质性质的空间分布的常规方法（即，K和S）; 2）调查HT结果是否可以通过融合互补的地质/地球物理数据来产生更精细的非均质性细节; 3）制定HT现场实施指南，并比较HT和传统方法的相关成本; 4）探索HT技术在加拿大市场的实用性; 5）培训高素质人员（HQP）。 预计该项目将为加拿大工业、UW和该学科带来的主要好处是开发了一种新方法来描述水力参数中的地下非均匀性。这将提高地下水流动和运输模型的可靠性，并改进以下方面的设计：1）地下水抽取和储存（例如，含水层储存和恢复作业）; 2）地下水补救; 3）化石燃料开采; 4）废物处置场; 5）用酸就地浸提金属等。