Thermal conductivity for geothermal probes (expanding depth 100 m) (WMS service)

The available maps with point data on “Heat conductivity for geothermal probes” up to 30 kW power and probe lengths of 40 m, 60 m, 80 m or 100 m were developed on the basis of the available drill information in the Drill Database Lower Saxony. The values shown are estimated thermal conductivity based on values from the VDI 4640, own measured values and values of the nationwide product catalogue for the economic application of near-surface geothermal data (ed. Ad-Hoc AG Hydrogeology, 2008). The map shows average thermal conductivity for selected bores. When you click on a hole, an info box with the most important master data of the bore opens. Thermal conductivity of individual layer units can be retrieved by clicking on the link “More information”. For the planned location of a new geothermal probe, the values shown in the vicinity — provided the surface structure is comparable — can give an orientation on the average thermal conductivity with a probe length of 40 m, 60 m, 80 m or 100 m. The data is used for an initial assessment of possible thermal conductivity and does not replace the concrete verification in the context of plant construction on the basis of the local conditions. Further information on legal and technical basics can be found in the “Guide for Geothermal Use in Lower Saxony” (Geobericht 24).本数据集配套的地热探针导热系数（Heat conductivity for geothermal probes）点位数据地图，覆盖功率不超过30kW、探针长度为40m、60m、80m或100m的应用场景，其编制基于下萨克森州钻井数据库（Drill Database Lower Saxony）中的公开钻井资料。图中展示的数值为估算导热系数，数据来源包括VDI 4640标准相关参数、实测数据，以及《近地表地热数据经济应用全国产品目录》（编者：水文地质特别工作组 Ad-Hoc AG Hydrogeology，2008年）。 本地图展示了选定钻井的平均导热系数。点击任意钻井点位，将弹出包含该钻井核心基础数据的信息框；若需获取单个地层单元的导热系数，可点击“更多信息”链接进行查询。 若需规划新地热探针的布设点位，在地表结构可比的前提下，目标点位周边的图面数值可作为40m、60m、80m或100m长度探针的平均导热系数参考依据。 本数据集仅用于导热系数的初步评估，无法替代基于当地实际条件开展的工程建设场景下的具体验证工作。如需了解更多法律与技术基础信息，可查阅《下萨克森州地热利用指南》（Geobericht 24）。