Evolution and Correlation of Acoustic Emission and Resistance Parameters During Coal Fracture Propagation

Mingyang, Song; Quangui, Li; Qianting, Hu; Yuebing, Zhang; Yangcheng, Xu; Liangping, Hu; Xuewen, Zheng; Zhengduo, Zhao; Suyu, Liu; Mingjie, Wang

doi:10.1007/s11053-024-10362-0

Nat Resour Res

2024

DOI: 10.1007/s11053-024-10362-0

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Evolution and Correlation of Acoustic Emission and Resistance Parameters During Coal Fracture Propagation

Song Mingyang,

Li Quangui,

Hu Qianting

et al.

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Theories, Techniques and Materials for Sealing Coalbed Methane Extraction Boreholes in Underground Mines: A Review

Bi,

Guo,

Wang

et al. 2024

Processes

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To further enhance the intelligent technology, platformisation, and systematisation of coalbed methane extraction sealing technology, this paper analyses the research progress of theories, technologies, and sealing materials related to coalbed methane extraction sealing and systematically summarises the latest achievements of the basic theories, key technologies, and sealing materials of coalbed methane extraction. Considering the increasing mining depth, advancements in intelligent technology, and the evolving landscape of coalbed methane development, it is particularly important to establish a more comprehensive coalbed methane extraction borehole sealing system. Based on this, future development trends and research prospects are proposed: In terms of coalbed-methane-extraction-related theories, there should be a stronger focus on fundamental research such as on gas flow within the coal matrix. For coalbed methane extraction borehole sealing technologies and devices, efforts should be made to enhance research on intelligent, platform-based, and systematic approaches, while adapting to the application of directional long borehole sealing processes. In terms of coalbed methane extraction borehole leakage detection, non-contact measurement and non-destructive monitoring methods should be employed to achieve dynamic monitoring and early warning of methane leaks, integrating these technologies into coalbed methane extraction system platforms. For coalbed methane extraction borehole sealing materials, further development is needed for liquid sealing materials that address borehole creep and the development of fractures in surrounding rock, as well as solid sealing materials with Poisson’s ratios similar to that of the surrounding rock mass.

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Theories, Techniques and Materials for Sealing Coalbed Methane Extraction Boreholes in Underground Mines: A Review

Bi,

Guo,

Wang

et al. 2024

Processes

View full text Add to dashboard Cite

show abstract

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Evolution and Correlation of Acoustic Emission and Resistance Parameters During Coal Fracture Propagation

Cited by 1 publication

References 62 publications

Theories, Techniques and Materials for Sealing Coalbed Methane Extraction Boreholes in Underground Mines: A Review

Theories, Techniques and Materials for Sealing Coalbed Methane Extraction Boreholes in Underground Mines: A Review

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