德国卡尔斯鲁厄附近的德国地热公司（DeutscheErdwärme）的Graben-Neudorf地热项目的第一阶段测试刚刚完成。结果比预期好，4000米深度处测得超过200摄氏度的温度。这使得Graben-Neudorf-1成为德国在这个深度上最热的钻孔。

我们最初在2022年中报道了Graben-Neudorf地点的钻探开始，2022年底的网络研讨会上还有有关井的更新。

数据将在未来几个月内进行评估，但这对于该项目来说是一个积极的发展，该项目最初的目标是具有天然高渗透性和约160摄氏度温度的储层。在Graben-Neudorf计划开发一个联合地热供暖和发电厂。

计划进行第二个测试阶段，但高于预期的温度也对测试设备提出了更高的要求。因此，在第二个测试阶段开始之前，技术要求将需要进行调整。

在完成地热钻孔的技术检查后，刚刚在Graben-Neudorf地点报告了热水的抽取。该地点的钻井设备现在将被拆除，待年底决定是否钻探第二个测试井。

Graben-Neudorf的开发项目是德国地热公司最先进的项目。除了Graben-Neudorf外，该公司还在Dettenheim、Waghäusel和Karlsruhe-Neureut开发地热项目。这些项目都处于相对早期的开发阶段，几周前Waghäusel项目因被提交公投而成为新闻。

来源：ZeitOnline，SWR和SueddeutscheZeitung

Thefirst testing phase at the at the Graben-Neudorf geothermal project of DeutscheErdwärmenear Karlsruhe, Germany has just been completed. The results were better than expected – temperatures of over 200 degrees Celsius were measured at a depth of 4000 meters. This makes the Graben-Neudorf-1 the hottest borehole in Germany at this depth.

Wefirst reported on the startof drilling inthe Graben-Neudorf site in mid-2022, with updateson the well featured during a webinar inlate 2022.

Thedata will be evaluated over the coming months, but this is a positive development for the project which had initially targeted a reservoir with naturally high permeability and temperatures of around 160 degrees Celsius. A combined geothermal heat and power plant is planned for development in Graben-Neudorf.

Asecond test phase is planned, but the higher-than-expected temperatures has also placed higher demands on the test equipment. Thus, technical requirements will have to be adjusted before the initiation of the second test phase.

Pumpingof the thermal waterfrom the Graben-Neudorf site was just reported earlier this month, after the completion of a technicalinspection of the geothermal borehole.The drilling rig at the site is now set to be dismantled, pending the decision to drill a second test well by the end of the year.

Thedevelopment project in Graben-Neudorf is the most advanced project of Deutsche ErdWärme. Aside from Graben-Neudorf, the company is also developing geothermal projects in Dettenheim, Waghäusel, and Karlsruhe-Neureut. These are all in the relatively early stages of development, with the Waghäusel project being in the news several weeks ago for beingput up to a referendum.

Source:ZeitOnlineSWR,and SueddeutscheZeitung