Case study of hydraulic fracturing for coal burst risk mitigation
Abstract Coal bursts pose significant safety and operational challenges in deep mining environments, necessitating effective mitigation strategies to address high-stress concentrations and dynamic failure risks. This study evaluated the efficacy of hydraulic fracturing as a preconditioning tool at a...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-06-01
|
| Series: | International Journal of Coal Science & Technology |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40789-025-00812-2 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Abstract Coal bursts pose significant safety and operational challenges in deep mining environments, necessitating effective mitigation strategies to address high-stress concentrations and dynamic failure risks. This study evaluated the efficacy of hydraulic fracturing as a preconditioning tool at a longwall face of the Mengcun coal mine with strong coal bursts, Shaanxi Province. The program involved the systematic creation of a fracture network through high-pressure fluid injection, monitored via microseismic arrays, stress measurements, and hydrological sensors. Results demonstrated that hydraulic fracturing effectively redistributed in-situ stresses, reducing high-stress concentrations by up to 30%, lowering the frequency of high-energy microseismic events, and enhancing the stability of fractured zones. However, the presence of unfractured blind spots and interactions with pre-existing faults highlighted the need for optimized well placement and adaptive fracturing designs. These findings underscore the potential of hydraulic fracturing as a critical preconditioning tool in high-stress mining operations, which could provide a framework for improving safety and efficiency in similar geological and operational settings. |
|---|---|
| ISSN: | 2095-8293 2198-7823 |