Geostatistical integration of seismic velocity and resistivity data for probabilistic evaluation of rock quality

This study applied a geostatistical approach to integrate various geophysical results for the probabilistic evaluation of rock quality designation (RQD) in regions between boreholes. Two of the geophysical survey results, electrical resistivity and seismic velocity, were transformed into a probabilistic distribution with the directly observed RQD values at the boreholes using an indicator value method. The initial spatial distribution of RQD,...