Figure F14. VP and VS measurements under pressure up to 100 MPa (Sun et al., this volume). The results do not show drastic changes of velocity under pressure. This suggests that most of the velocity variations measured by logging are caused by cavities and larger fractures (on the order of a few centimeters).

Figure F14. V_P and V_S measurements under pressure up to 100 MPa (Sun et al., this volume). The results do not show drastic changes of velocity under pressure. This suggests that most of the velocity variations measured by logging are caused by cavities and larger fractures (on the order of a few centimeters).