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首页> 外文会议>Geothermal Resources Council Annual Meeting Expo >Shallow Geothermal Potential of the Snake River Plain
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Shallow Geothermal Potential of the Snake River Plain

机译：蛇河平原的浅层地热潜力

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The Snake River Plain (SRP) terrestrial heat flow and subsurface thermal regime are not well understood but are important for assessing the local geothermal resource potential, both for conventional and for Enhanced Geothermal Systems (EGS) development in the region. Resource evaluation for the SRP is complicated by the disparate data density, along with the known lateral advection of heat in the Eastern Snake River Plain Aquifer and vertical heat transport by fluids in the bounding faults, primarily in the southwestern section. Fortunately, recent studies, e.g., the Snake River Plain Play Fairway Analysis, the Idaho FORGE site, and site-specific investigations, which included drilling within the Camas Prairie and on the Mountain Home Air Force Base, near Twin Falls, and in the Eastern Snake River Plain as part of the HOTSPOT Project, add both additional drilling and geophysical data. The SMU Geothermal Laboratory has conducted detailed studies of SRP tectonics and heat flow since the 1970's and used this knowledge as part of the EGS geothermal potential estimation for the conterminous United States in 2006 and again in 2011, calculating geothermal potential from 3.5 km to 10 km depth. Recent temperature modeling refined the calculation methodology to estimate shallow (1 km to 4 km) resource potential using an improved thermal conductivity model and incorporation of shallow groundwater flow. By incorporating the new SRP geology, geophysics, and 206 thermal data sites into the SMU thermal modeling methodology, this project updates the resource estimate for the SRP, and generates new temperature-at-depth maps for the shallow subsurface (1 km to 4 km). The project results highlight the EGS potential resource areas (≥150°C) and areas with more exploration risks based on minimal and/or low-quality data. The newest temperature modeling results suggest EGS potential is near five times greater in the SRP than previously estimated.
机译：蛇河平原（SRP）陆地热流和地下热法规尚不清楚，但对于评估该地区的传统和增强地热系统（EGS）开发的局部地热资源潜力也很重要。 SRP的资源评估因不同的数据密度而复杂化，以及已知的东蛇河普通含水层在东部蛇河普通含水层中的热量和垂直热传输，主要在西南部。幸运的是，最近的研究，例如Snake River Plane Play Fairway分析，Idaho Forge网站和特定的现场调查，包括在Camas草原和山地房屋空军基地内钻探，靠近Twin Falls和东部Snake River Plain作为热点项目的一部分，添加了额外的钻井和地球物理数据。自1970年代以来，SMU地热实验室对SRP构造和热流进行了详细的研究，并将这些知识作为2006年和2011年同样的EGES Unithers美国的地热潜力估计的一部分，从3.5公里计算地热潜力深度。最近的温度建模通过改进的导热模型和浅地下水流入估计浅（1公里至4km）资源潜力来精制计算方法。通过将新的SRP地质学，地球物理学和206个热数据网站纳入SMU热建模方法，该项目更新了SRP的资源估计，并为浅层地下产生了新的温度 - 深度地图（1公里到4公里）。项目结果突出显示EGS潜在资源区域（≥150°C）和基于最小和/或低质量数据的勘探风险更多的区域。最新的温度建模结果表明，SRP在SRP中的潜力比以前估计更大的潜力近5倍。

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