... with the quality (integrity) of the rock. ground surface tunnel face velocity profile face evaluation score Vibration data total length travel time refraction survey Reservoir Characterization borehole receiver sensor Drilling Upstream Oil & Gas drill bit low velocity zone seismic...

... with locations of source generation, receivers are set up in alignment into another borehole. Upstream Oil & Gas seismic velocity geotomography geotomographic technique low velocity zone frequency attenuation joint frequency map geotomographic analysis joint frequency borehole amplitude...

... of seismic and rock mechanics investigation. reservoir geomechanics geophysical investigation dam site Upstream Oil & Gas right bank massive rock Reservoir Characterization Berke dam site classification alterated zone Rock mechanics Investigation low velocity zone seismic velocity dam...