Test Research of Hydraulic Fracturing for Loose Outburst Coal Seam in Wangjiazhai Mine
RAN Qiping
ZHAO Zhifa
BAI Xinhua
SHI Kun
SUN Mingchuang
Abstract：Aiming at the problems of difficult gas drainage, bad outburst prevention effect and slow driving velocity in Wangjiazhai Coal Mine, the hydraulic fracturing measures for X41105 working face were studied and tested according to the principle and equipment of the underground hydraulic fracturing technology. Based on the site tests, various construction parameters were determined, including the hole-packing length, fracturing time, fracturing pressure and so on. Investigation and analysis were carried out on the gas drainage effect, outburst eliminating effect and economic benefits, the results showed that the hydraulic fracturing measures could quickly eliminate the coal and gas outburst hazard, improve gas drainage rate and have remarkable economic benefits.
Keywords：gas controlloose coal seamhydraulic fracturinggas drainageoutburst-elimination effect
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 16-19 )