Multifractal Analysis of Acoustic Emissions during Hydraulic Fracturing Experiments under Uniaxial Loading Conditions: A Niutitang Shale Example

Figure 9

Micro-CT scanning results of rock sample T2. (a) A horizontal slice. (b, c) Two vertical slices near the sample center and are cut roughly perpendicular to the fractures, and I-IV correspond to the horizontal slices at heights of 20 mm, 40 mm, 60 mm, and 80 mm. (d) The 3D view of the scanning result.