Investigation of the Evolution of Stratum Fracture during the Cavity Expansion of Underground Coal Gasification

Investigation of the Evolution of Stratum Fracture during the Cavity Expansion of Underground Coal Gasification

The evolution of fracture zone controls the safety of underground coal gasification (UCG) in terms of gas emission and water leakage. In order to understand the fracture propagation in the confining rock of a UCG cavity with various influence factors, this paper implemented a set of numerical models...

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Bibliographic Details
Main Authors: Zhen Dong, Haiyang Yi, Yufeng Zhao, Xinggang Wang, Tingxiang Chu, Junjie Xue, Hanqi Wu, Shanshan Chen, Mengyuan Zhang, Hao Chen
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Energies
Subjects:
underground coal gasification
fracture evolution
cavity expansion
safety assessment
gas emission
water leakage
Online Access:https://www.mdpi.com/1996-1073/15/19/7373

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