Figure 6

Logging response characteristics of large and small scale fractures. (a) A horizontal unlocked-fracture can be seen from the core, and RT values decreased with the RT curve having a dentate shape at 1406.7 m in well PL15; (b) A structural fracture runs through a thin section, and the RT values decreased with the RT curve exhibiting a platform notch type at 1411.9 m in well X5.