基于水力压裂技术的降低煤层突出系数方法研究  

Research on Method of Reducing Coal Seam Outburst Coefficient Based on Hydraulic Fracturing Technology

作　　者：刘朝阳 Liu Chaoyang(Huayang New Material Technology Group Co.,Ltd.,Yangquan Shanxi 045008)

机构地区：[1]华阳新材料科技集团有限公司,山西阳泉045008

出　　处：《山西冶金》2022年第3期103-105,共3页Shanxi Metallurgy

摘　　要：针对煤矿井下高瓦斯、低透气性煤层在综采作业时所面临的瓦斯抽采困难的问题,提出了一种新的基于水力压裂技术,通过进行钻孔优化、精确分析水力压裂左右范围等,实现了降低煤层突出系数,提高瓦斯抽采效果的目的。根据实际应用表明,该技术能够将煤层透气性系数提升34.7倍,将煤层内瓦斯的抽采流量提升了58.6%以上,有效提升了井下瓦斯治理成本和综采安全性。In view of the difficulty of gas drainage in fully mechanized mining of high gas and low permeability coal seams in coal mine, a new technology based on hydraulic fracturing is proposed. Through drilling optimization and accurate analysis of the left and right range of hydraulic fracturing, the purpose of reducing coal seam outburst coefficient and improving gas drainage effect is realized. According to the practical application, the technology can increase the permeability coefficient of coal seam by 34.7 times, increase the gas drainage flow in coal seam by more than 58.6%, and effectively improve the underground gas control cost and the safety of fully mechanized mining.

关 键 词：水力压裂 煤层突出系数 瓦斯抽采 

分 类 号：TD712[矿业工程—矿井通风与安全]