Study on Low Permeability Coal Seam Hydraulic Cutting Seam Permeability Improvement Technology of Changcun Mine
WANG Zhen-gang1， SONG Yi-meng2， SHI Bao2， WANG An-hu2
1.Changcun Mine of Shanxi Lu’an Environmental Energy Corporation Ltd.， Changzhi 046102， China; 2. China Coal Information Institute of National Institute for Occupational Safety， Beijing 100029， China
Changcun Mine is a high gas mine， the No.3 coal seam with poor permeability. In order to effectively increase the permeability of No.3 coal seam and improve gas drainage effect， permeability measures must be taken to solve Low permeability of the coal seam. Study of hydraulic cutting seam in low permeability No. 3 coal seam was carried out， drilling parameters and their arrangement on experiment site were settled. The study showed that hydraulic cutting seam permeability improvement technology improved the gas drainage quantity by 3～3.75 times， high concentrations of drainage time extended to 1.2 times， the technology got good effect of gas drainage.
王振刚，宋宜猛，时 宝，王安虎. 常村煤矿低渗透煤层水力割缝增透技术研究[J]. 煤炭与化工, 2015, 38(12): 12-14.
WANG Zhen-gang， SONG Yi-meng， SHI Bao， WANG An-hu. Study on Low Permeability Coal Seam Hydraulic Cutting Seam Permeability Improvement Technology of Changcun Mine. CCI, 2015, 38(12): 12-14.
