Assessment of elastic seismoacoustic vibration propagation through coal and rock mass within the extraction column during directional hydraulic fracturing (DHF) implementation

International Scientific Conference "Knowledge-based technologies in development and utilization of mineral resources"

Klishin, V.I.^1 ; Taylakov, O.V.^1 ; Opruk, G. Yu.^1 ; Sokolov, S.V.^1 ; Nikolaev, A.V.^2

Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, 10 Leningradsky ave, Kemerovo

650065, Russia^1

LLC Mine Esaulskaya, LLC RUK, 33 Kurako ave, Novokuznetsk

652831, Russia^2

关键词: Directional hydraulic fracturing;    Extraction columns;    Geological conditions;    Mechanical characteristics;    Qualitative characteristics;    Specialized equipment;    Technological process;    Vibration propagation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/206/1/012024/pdf
DOI  :  10.1088/1755-1315/206/1/012024

来源: IOP

【 摘 要 】

The article reveals information about implementation of roof rock directional hydraulic fracturing technology when face was advancing under tough roof. The authors justify application of directional hydraulic fracturing. They developed the scheme for roof softening considering mining and geological conditions of "Esaulskaya" mine. The authors describe technological process taking place during implementation of directional hydraulic fracturing and give the list of the applied general and specialized equipment. Considering the results of the performed operations the authors made a conclusion in relation to the effectiveness of the conducted work. They assessed the qualitative characteristics of the performed activities aimed at roof softening. The authors determined physical and mechanical characteristics of the active roof on the basis of seismic survey data analysis.