Acoustic-logging methods using a considerable range of wavelengths and frequencies have proven very useful in the in situ characterization of deeply buried crystalline rocks. Seismic velocities are useful in investigating the moduli of unfractured rock, and in producing a continuous record of rock quality for comparison with discontinuous intervals of core. The considerable range of frequencies makes the investigation of scale effects possible in both fractured and unfractured rock. Several specific methods for the characterization of in situ permeability have been developed and verified in the field.
Additional Publication Details
APPLICATIONS OF BOREHOLE-ACOUSTIC METHODS IN ROCK MECHANICS.
A. A. Balkema
Larger Work Title:
Proceedings - Symposium on Rock Mechanics
Research & Engineering Applications in Rock Masses, Proceedings of the 26th US Symposium on Rock Mechanics.