In view of the high gas and low permeability and difficult gas drainage in the 22613 working face of No. 6 mining areas in Guandi Mine, the CO2 pre-cracking and anti-reflection technology was proposed to improve the gas drainage efficiency. The field practice showed that the CO2 pre-cracking hole arrangement was 8 m, the best extraction effect was achieved. The CO2 pre-cracking measures increased the average single-hole gas drainage volume fraction of the coal seam by 1.2 times, with higher gas drainage in the later stage of the extraction. The mining volume achieved good drainage results and deserved further promotion.
殷泽宇. 官地矿22613工作面CO2预裂增透瓦斯抽采技术研究[J]. 煤炭与化工, 2018, 41(12): 97-99,102.
Yin Zeyu. Study on CO2 pre-cracking and anti-reflection technology of 22613 working face of Guandi Mine. CCI, 2018, 41(12): 97-99,102.
