Quantitative Analysis of Anisotropy Effect on Hydrofracturing Efficiency and Process in Shale Using X-Ray Computed Tomography and Acoustic Emission

Hydrofracturing technology has become successful in enhancing the permeability of shale gas reservoirs. However, given the geological complexity in the subsurface, considerable challenges remain in quantitatively analyzing the hydrofracture geometry and understanding the anisotropic fracture process. To investigate, we conducted hydrofracturing tests through a horizontal borehole in shale core samples to simulate a horizontal fracturing...