Geoelectrical verification of fluid movements after the KTB Injection Test using surface / vertical electrode systems

目的是估计在大量淡水被压下的情况下，大注水试验后KTB工地的电导率变化。由于注入水和盐水结壳水的电导率差异很大，地电方法有资格探测近4000 m深度的这种变化和运动，为了达到更好的分辨率，地面测量必须使用在早期研究中开发的JA 590/19-1和JA 590/19-2(孔-面测量)的垂直电剖面系统(VES)。在淡水注入试验后，在不同的时间间隔安排了三次表面孔测量。它们的结果将与2002年至2003年生产试验(JA 590/19-2项目)以后的以前的测量结果进行比较。每隔七周和六个月测量一次，将监测发生的液体运动及其恢复平衡的情况。最后提供的是对自2001年以来进行的所有测量的最终解释。此外，自然电场将由先导孔未覆盖部分的瞬变记录器记录。

The aim is the estimation of changes in conductivity at KTB-site after the big injection test when a large amount of fresh water was pushed down. Because of the significant differences of the conductivity between injected water and saline crust water, geoelectrical methods are qualified for detecting such changes and movements in a depth of nearly 4000 m. For reaching better resolutions, the surface-measurements have to be completed by the Vertical Electrical Profiling System (VES), which was developed during the earlier researches JA 590/19-1 and JA 590/19-2 (hole-surface-measurements). Three surface-hole-measurements in different temporal intervals were scheduled after the fresh water injection test. Their results will be compared with former measurements beyond the production test from 2002 till 2003 (project JA 590/19-2). Measurements in an interval of seven weeks and an interval of six months will monitor occurred fluid movements and their returning to balance. It is finally provided to give a final interpretation of all measurements that have ever been done since 2001. Additionally the natural electrical field will be recorded by transient recorders in the uncased part of the pilot hole.