Open AccessRisk reduction in underground mining of coal-bearing coal seams with hydraulic fracturing
Author(s) -
S. V. Serdyukov,
Т. В. Шилова,
L. A. Rybalkin
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/523/1/012018
Subject(s) - hydraulic fracturing , coal mining , coal , petroleum engineering , mining engineering , geology , fracturing fluid , reduction (mathematics) , environmental science , waste management , engineering , geometry , mathematics
The paper discusses influence exerted by the parameters of hydraulic fracturing on flow coefficient in parallel holes in pre-mining degasification of coal seam non-unloaded from rock pressure. The rates of coal degasification without hydraulic fracturing, as well as with nondirectional and multistage hydraulic fracturing are compared. Effect of different-type fracks on risk reduction in underground coal mining is assessed. The obtained results allow estimating efficiency of the hydraulic fracturing modifications currently in use in coal mines.