Research on Directional Controllability of Cracking in Hydraulic Fracturing of Hard Overburden Based on Local Stress Field Intervention

Research on Directional Controllability of Cracking in Hydraulic Fracturing of Hard Overburden Based on Local Stress Field Intervention

As a widely-used method of digging roadways in China, gob-side entry driving features specific advantages, such as a high recovery rate and good isolation effects. However, under the condition of hard overburden, the excessive bearing pressure of small coal pillars will easily cause serious internal...

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Bibliographic Details
Main Authors: Dingchao Chen, Xiangyu Wang, Feiteng Zhang, Menglong Li, Xiangqian Zhao, Guanjun Li, Yang Yu, Guanghui Wang, Jiaxin Zhao, Xiangdong Wang
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Energies
Subjects:
hard overburden
directional hydraulic fracturing
pressure relief mechanism
roadway coal pillar
gob-side entry
Online Access:https://www.mdpi.com/1996-1073/15/12/4252

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