Low-temperature geothermal power plants have great potential to provide baseload electricity worldwide. However, the technology is new and untested, and the systems require a significant financial investment. Site-specific feasibility studies are required to draw together available data and inform developers of production potential and challenges. This study applies coupled thermal, hydraulic, and geochemical modeling to characterize a horizontal geothermal well system in the Williston Basin. This study targeted thermal anomalies overlying 370 m thick halite and dolomite formations from the Devonian period. The halite and dolomite produced a 6°C thermal anomaly, or 16°C km⁻¹ increase in the thermal gradient. A >5.0 MW power plant was achieved when targeting the Dawson Bay formation. A fractured, horizontal well in the Bakken formation was re-entered for injection, providing a savings of up to 40% of drilling costs. The geochemical analysis allowed for the calculation of potential precipitates in the production casing, and consideration of mitigation methods. In addition, the co-production of lithium was identified as potentially profitable in the Dawson Bay Formation. Considering the available resources and assets provided unique data to inform the development of a geothermal system in the Williston Basin.

低温地热发电厂具有在全球范围内提供基本负荷电力的巨大潜力。但是，该技术是新技术，未经测试，并且系统需要大量的财务投资。需要进行针对特定地点的可行性研究，以汇总可用数据并告知开发人员生产潜力和挑战。这项研究应用热力，水力和地球化学的耦合模型来表征威利斯顿盆地的水平地热井系统。这项研究的目标是泥盆纪时期覆盖370 m厚的岩盐和白云岩地层的热异常。盐岩和白云岩产生6°C的热异常，即16°C km ^-1热梯度增加。瞄准道森湾地层时，获得了大于5.0兆瓦的发电厂。重新进入巴肯地层的一口压裂水平井进行注入，可节省多达40％的钻井成本。地球化学分析可用于计算生产套管中的潜在沉淀物，并考虑缓解方法。此外，在道森湾组（Dawson Bay），联产锂被确定具有潜在的盈利能力。考虑到可用资源和资产，提供了独特的数据，可为Williston盆地地热系统的发展提供信息。