Figure 6
Core sample and actual log response characteristics of non-fractured rock and different dip fractures. (a) Fracture of sample 1. (b) Fracture of sample 2. (c) Fracture of sample 3. (d) Fracture of sample 4. (e) Non-fractured sample. (f) Acoustic-density response characteristic intersection diagram for fractures and non-fractures. (f) Acoustic-density response characteristic intersection diagram for fractures and non-fractures. (g) The red area is the tension fracture development zone, the blue area is the bedding fracture development zone, and the gray area is the intact zone. FAC is the AC correlation coefficient, FDEN is the DEN correlation coefficient, and FAC-DEN is the AC-DEN correlation coefficient (compared with imaging results), showing that FAC-DEN can adequately identify fracture zones. FMI is Formation MicroScanner Image.
