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Exploring for Geothermal Resources with Electromagnetic Methods

机译:电磁法勘探地热资源

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摘要

Electrical conductivity of the subsurface is known to be a crucial parameter for the characterization of geothermal settings. Geothermal systems, composed by a system of faults and/or fractures filled with conducting geothermal fluids and altered rocks, are ideal targets for electromagnetic (EM) methods, which have become the industry standard for exploration of geothermal systems. This review paper presents an update of the state-of-theart geothermal exploration using EM methods. Several examples of high-enthalpy geothermal systems as well as non-volcanic systems are presented showing the successful application of EM for geothermal exploration but at the same time highlighting the importance of the development of conceptual models in order to avoid falling into interpretation pitfalls. The integration of independent data is key in order to obtain a better understanding of the geothermal system as a whole, which is the ultimate goal of exploration.
机译:已知地下电导率是表征地热环境的关键参数。由充满传导性地热流体和蚀变岩石的断层和/或裂缝系统组成的地热系统是电磁(EM)方法的理想目标,电磁方法已成为探索地热系统的行业标准。这篇综述文章介绍了使用EM方法进行的最新地热勘探的最新进展。给出了高焓地热系统和非火山系统的几个示例,这些示例显示了EM在地热勘探中的成功应用,但同时也强调了开发概念模型的重要性,以避免陷入解释上的陷阱。为了更好地了解整个地热系统,独立数据的集成是关键,这是勘探的最终目标。

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