Analyses des ensembles de données géophysiques d’étalonnage

The need for monitored bedrock borehole calibration facilities in Canada is critical for long-term research into groundwater flow through fractured bedrock. The Department of Natural Resources Canada (NRCan) has a requirement to conduct a study of fractured, sedimentary (dolostone and sandstone) thematic bedrock aquifer types of Southern Ontario. The study is leveraging the capacity of existing borehole calibration facilities in Ottawa and Guelph, Ontario, with networks of closely-spaced boreholes to: develop a set of standards at the facilities to provide an enhanced understanding of physical bedrock properties from core and downhole tests;complete analyses on the performance and application of emerging slim-hole nuclear magnetic resonance (NMR) logging tools to measure matrix porosity and estimate permeability in the dolomite and sandstone bedrock at the Guelph and Ottawa facilities;integrate complementary datasets at various scales from the two sites (e.g. core CT scans, laboratory core analyses, downhole geophysical data and hydro-geophysical data) to develop a 3D understanding of groundwater movement at the facilities.