Thermogeology in the Oslo region and Kristiansand - results from thermal response tests (TRT) with and without artificially induced groundwater flow
Thermal response tests (TRT) are widely used to measure the effective thermal conductivity and borehole resistance in a well. The gained data serve as the basis for the dimensioning of larger ground-source heat-pump installations with closed loop systems. The influence of groundwater flow on a TRT in fractured aquifers is not well understood. An attempt to quantify the influence of groundwater was done by pumping of groundwater from a nearby well during the TRT.
Chemical analyses of main, minor and trace elements have been made of Ordovician black (alum-) shale samples collected at two different localities and one waste pile in the greater Oslo area. The study is aimed at identification of differences between black shales from different localities by using main and trace element concentrations in whole rock for "fingerprinting".