Experimental investigation on acoustic emission response and fracture evolution of coal under stepwise pressurization and pump shut-in/re-initiation during hydraulic fracturing

Hydraulic fracturing in low-permeability coal seams faces significant challenges, including poor controllability of fracture propagation and difficulty in forming complex fracture networks. Existing studies lack a systematic understanding of fracture evolution under full-cycle dynamic loading, limit...

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Hauptverfasser:	Yuebing Zhang, Mingyang Song, Zongze Li, Bichuan Zhang, Weiping Gao, Yijing Huang, Haiyan He, Hanying Deng, Jianwei Cheng
Format:	Artigo
Sprache:	Inglês
Veröffentlicht:	KeAi Communications Co., Ltd. 2026-06-01
Schriftenreihe:	Earth Energy Science
Schlagworte:	Hydraulic fracturing Fracture propagation Acoustic emission Coal
Online-Zugang:	http://www.sciencedirect.com/science/article/pii/S2950154726000115
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