Anisotropic characteristics of acoustic emission and the corresponding multifractal spectrum during progressive failure of shale under cyclic loading

Y Xie, MZ Hou, C Li - International Journal of Rock Mechanics and Mining …, 2023 - Elsevier
The failure mechanism of shale under cyclic loading is useful for understanding fatigue
hydraulic fracturing in reservoirs. The anisotropic characteristics of this mechanism were …

Fracture variation in high-rank coal induced by hydraulic fracturing using X-ray computer tomography and digital volume correlation

X Wang, J Pan, K Wang, P Mou, J Li - International Journal of coal geology, 2022 - Elsevier
Hydraulic fracturing is a key technology for improving the permeability of coal reservoirs.
Understanding the variation of hydraulically induced fractures is crucial for improving …

Experimental and numerical simulation technique for hydraulic fracturing of shale formations

L Huang, X Liao, M Fan, S Wu… - Advances in Geo …, 2024 - ager.yandypress.com
Hydraulic fracturing is crucial for extracting shale oil and gas. This technique involves
creating fractures in rock formations to enhance reservoir development efficiently. Due to the …

Investigating the propagation of multiple hydraulic fractures in shale oil rocks using acoustic emission

S Wu, K Gao, X Wang, H Ge, Y Zou, X Zhang - Rock Mechanics and Rock …, 2022 - Springer
The propagation of multiple fractures plays a significant role in the effectiveness of hydraulic
stimulation in shale oil reservoirs. Previous studies reported that the laminations and …

Effects of water content on mechanical failure behaviors of coal samples

C Tang, Q Yao, T Chen, C Shan, J Li - Geomechanics and Geophysics for …, 2022 - Springer
The mechanical properties and degradation caused by damage within coal pillar dams
determine the safety and stability of underground water reservoirs. This study investigated …

Effects of bedding planes on progressive failure of shales under uniaxial compression: Insights from acoustic emission characteristics

M Zhai, L Xue, F Bu, B Yang, X Huang, N Liang… - Theoretical and Applied …, 2022 - Elsevier
It is believed that the bedding plane is one of controlling factors in progressive failure of
shales and its characterization is of great significance in the gas shale engineering …

Study on anisotropy of Longmaxi shale using hydraulic fracturing experiment

H Zhai, X Chang, W Zhu, X Lei, Z Xue - Science China Earth Sciences, 2021 - Springer
Hydraulic fracturing reservoir reconstruction technology is crucial in the development of
shale gas exploitation techniques. Large quantities of high-pressure fluids injected into …

Experimental study on mechanical properties of shale rock and its strength criterion

B Zhao, Y Li, W Huang, X Wang, C Chen - Arabian Journal of Geosciences, 2021 - Springer
The mechanical properties of shale rock have a great significance on drilling engineering
and the establishment of safety protection facilities in the process of shale gas exploitation …

Experimental investigation of the damage characteristics and breaking process of shale by abrasive waterjet impact

H Qu, S Tang, M Sheng, Z Liu, R Wang, Y Hu - Journal of Petroleum …, 2022 - Elsevier
Perforation is critical to create a flow pathway between a shale reservoir and the production
casing for hydraulic fracturing. However, the damage characteristics of shales by abrasive …

Impact of the water-wedge deterioration effect of pulsating water injection on AE waveforms and crack propagation during fracturing processes

A Chen, C Zhai, Y Zheng, X Yu, J Xu, Y Lai - Engineering Fracture …, 2024 - Elsevier
Pulsating hydraulic fracturing (PHF) is a promising technology for enhancing the extraction
of coalbed methane. In this study, the effects of pulsating water response of coal fractures …