3D-Modellierung der tiefengeothermischen Potenziale von Hessen – Eingangsdaten und Potenzialausweisung
3D-Modellierung der tiefengeothermischen Potenziale von Hessen – Eingangsdaten und Potenzialausweisung
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黑森州的 3D 模型 – Eingangsdaten 和 Potenzialausweisung
DOI：
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发表时间：
2011
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通讯作者：
I. Sass
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作者：
Kristian Bär;D. Arndt;J. Fritsche;A. Götz;M. Kracht;A. Hoppe;I. Sass
在“黑森州深层地热潜力 3D 建模”研究项目的范围内，对黑森州深层地热潜力进行了量化和定性分析评估。对不同地热系统进行了地下储存热量的量化和定性分析。这些是热液和石油热系统，以及断层带和深钻孔热交换器。为了评估深层地热潜力，了解潜在储层岩石的地质结构和地热性质是必不可少的。因此，开发了黑森州（德国）深层地热潜力的 3D 模型（参见 Arndt 等人，2011）。对相关地质层的热导率、热容和渗透率等热物理和水力岩石特性的系统测量已与现场温度测量、热液上升区、地质断层特征相结合，并添加到3D地质结构模型中。使用多标准方法，评估各种岩石和储层特性，结合它们与不同地热系统的相关性，以便进行定性分析。因此，定义了每个参数的阈值，指定潜力是非常高、高、中、低还是非常低。在应用于 3D 模型之前，该方法针对一维情况（虚拟钻井）和二维情况（地质地热剖面）进行了测试。由此产生的地热模型结合了定量和定性分析，是一个重要的工具，可在地热发电厂设计规划阶段的早期阶段使用。此外，它还可以量化深层地热潜力，并旨在成为公共信息的工具。 Schlusselworter：地热、地热潜力、热物理学 Gesteinseigenschaften、Hydraulische Kennwerte、geologisches 3D-Modell、Oberrheingraben、Hessen、Deutschland、GOCAD
Within the scope of the research project “3D-modelling of the deep geothermal potentials of Hesse” the deep geothermal potential of the Federal State of Hesse was quantifi ed and assessed in a qualitative analysis. The quantifi cation of the heat stored under ground and the qualitative analysis was done for different geothermal systems. These are hydrothermal and petrothermal systems, as well as fault zones and deep borehole heat exchangers. For the assessment of the deep geothermal potential, knowledge of the geological structure and the geothermal properties of the potential reservoir rocks are indispensable. Therefore, a 3D model of the deep geothermal potential of the Federal State of Hesse (Germany) has been developed (cf. Arndt et al. 2011). Systematic measurements of thermophysical and hydraulic rock properties such as thermal conductivity, heat capacity and permeability of relevant geologic formations have been combined with in-situ temperature measurements, hydrothermal upwelling zones, characteristics of geological faults and were added to the 3D geological structural model. Using a multiple criteria approach, the various rock and reservoir properties were assessed incorporating their relevance for the different geothermal systems to allow the qualitative analysis. Therefore, threshold values for each parameter were defi ned specifying whether the potential is very high, high, medium, low or very low. This method was tested for the one-dimensional case (virtual drilling) and the two-dimensional case (geological-geothermical cross-sections) before being applied to the 3D model. The resulting geothermal model, which incorporates the quantifi cation and the qualitative analysis, is an important tool, which can be used at an early stage of the planning phase for the design of geothermal power plants. Furthermore, it allows quantifi cation of the deep geothermal potential and is intended to be an instrument for public information. Schlusselworter: Geothermie, geothermisches Potenzial, thermophysikalische Gesteinseigenschaften, hydraulische Kennwerte, geologisches 3D-Modell, Oberrheingraben, Hessen, Deutschland, GOCAD