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

• Applicant: Dr. Erik Danckwardt
• Subject Area: Geophysics
• Term: from 2005 to 2007
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 5447954

• Final Report Year: 2007

Final Report Abstract

Electrical surveys in kilometre scale have applied to investigate the fluids movements caused by hydraulic experiments. The Fluid Pump or Fluid Injection Test clearly indicate a decreasing respectively an increasing in electrical resistivity. Inhole-logs could give a first indication (very close to the pilot borehole) of consequence of the producing of saline formation fluids respectively of the fluid inflow displaced by injected fresh water in 2005. Also in greater distances to the pilot borehole, the time course of the decreasing (2003) and of the increasing in the apparent resistivity (2005) could be measured by geoelectrical surface-hole-experiments.

Publications

• (2005): Surface-hole experiments with Vertical Electrical Profiling System at KTB-site. International Conference and Annual Meeting, Geologische Vereinigung (GV) & Deutsche Gesellschaft für Geowissenschaften (DGG), Erlangen
  Laass, D.; Danckwardt, E.; Petzold, G.
  
• (2006): Detection of fluid movements, caused by the Fluid Injection Test from 2004 till 2005, in great depths at KTB-site. IODP-ICDP Colloquium, Greifswald
  Laass, D.; Danckwardt, E.; Petzold, G.
  
• (2006): Geoelectric survey of hydraulic experiments at the German Deep Drilling site KTB at km-scale. EAGE, Helsinki, Finland
  Laass, D.; Danckwardt, E.; Petzold, G.; Voigt, R.
  
• (2006): Geoelectrical surface-hole and inhole measurements after hydraulic experiments at the German Deep Drilling site KTB. Geoelectrikseminar, Kloster Nimbschen, Germany
  Danckwardt, E.; Laass, D.
  
• (2006): Tiefengeoelektrik: Detektierbarkeit von Fluidbewegungen nach dem Injektionstest 2004-2005 an der KTB-VB. 62. Jahrestag. der Deutschen Geophysikalischen Gesellschaft, Bremen
  Laass, D.; Danckwardt, E.; Petzold, G.