马兰矿坚硬顶板水力压裂技术实践与应用  

Practice and application of hydraulic fracturing technology for hard roof in Malan mine

作　　者：张辉 ZHANG Hui(Malan Mine,Shanxi Xishan Coal Power Co.,Ltd.,Taiyuan 030200,China)

机构地区：[1]山西西山煤电股份有限公司马兰矿,山西太原030200

出　　处：《陕西煤炭》2025年第4期139-142,147,共5页Shaanxi Coal

摘　　要：针对马兰矿坚硬顶板所造成的巷道变形严重及端头悬顶等现象,以马兰矿18501工作面为例,对水力压裂技术原理进行了分析,并结合18501工作面的地质概况,提出了水力压裂技术的具体实施方案,分别从巷道底鼓、端头悬顶以及瓦斯抽采3个方面对水力压裂实施方案的应用效果进了综合性的研究对比。分析结果显示,相较于水力压裂技术实施前,18501工作面的端头顶板悬顶距离由之前的10~30 m左右降低到了5 m范围内;且18501辅运巷压裂段巷道的底鼓量与非压裂段相比,减小了70%左右;与此同时,压裂钻孔与普通钻孔相比,其瓦斯抽采浓度提升了大约30%。水力压裂技术的实施可有效保证巷道的正常使用,为18501工作面的安全回采奠定坚实基础。In view of the serious roadway deformation and end hanging caused by the hard roof of Malan mine,taking the 18501 working face of Malan mine as an example,the principle of hydraulic fracturing technology is analyzed,and combined with the geological situation of the 18501 working face,the specific implementation plan of hydraulic fracturing technology is put forward.The application effect of hydraulic fracturing implementation scheme is studied and compared from three aspects of roadway floor heave,end hanging roof and gas extraction,respectively.The analysis results show that,compared with before the implementation of hydraulic fracturing technology,the end roof hanging distance of 18501 working face is reduced from about 10~30 m to 5 m.In addition,the floor heave in the fractured section of 18501 auxiliary transport roadway is reduced by about 70%compared with that in the non-fractured section.At the same time,the concentration of gas extracted from fracturing boreholes increased by approximately 30%compared to conventional boreholes.The implementation of hydraulic fracturing technology can effectively ensure the normal use of the roadway and lay a solid foundation for the safe mining of the 18501 working face.

关 键 词：水力压裂 坚硬顶板 端头悬顶 应用效果 

分 类 号：TD353[矿业工程—矿井建设]