气相压裂技术在低透气性煤层巷道瓦斯治理中的应用  

Application of Gas Phase Fracturing Technology in Gas Management of Low Permeability Coal Seam Roadways

作　　者：张海东 Zhang Haidong(Shanxi Institute of Engineering and Technology,Yangquan Shanxi 045000)

机构地区：[1]山西工程技术学院,山西阳泉045000

出　　处：《现代工业经济和信息化》2022年第8期160-163,共4页Modern Industrial Economy and Informationization

基　　金：山西工程技术学院科技项目(项目编号:2022HX-05)。

摘　　要：针对11034工作面运输顺槽抽采困难问题,采用抽采参数考察、数值模拟研究的方法,分析出现抽采效果差的原因,实施CO_(2)致裂增透措施,并进行后期效果考察。数值模拟研究结果表明:101 kPa负压下,原始煤层抽采最大抽采浓度30%。原始煤层抽采半径约为1m,实施致裂增透措施实施后,瓦斯抽采浓度提高了2.2倍,增透效果明显。Aiming at the problem of difficult extraction in the transport chute of 11034 working face,the method of extraction parameters investigation and numerical simulation study was adopted to analyze the reasons of poor extraction effect,implement CO_(2) fracturing and permeability enhancement measures,and carry out post-effective investigation.The results of the numerical simulation study show that the maximum extraction concentration of the original coal seam extraction is 30%under 101 KPa negative pressure.The extraction radius of the original seam was about 1 m.After the implementation of fracturing and permeability enhancement measures,the gas extraction concentration increased by 2.2 times and the effect of permeability enhancement was obvious.

关 键 词：气相压裂 低透气煤层 数值模拟 致裂增透 

分 类 号：TD712[矿业工程—矿井通风与安全]