鹰骏一号矿井断层构造富导水性分析与研究  

Analysis and Research on Water Enrichment and Conductivity of Fault Structures in Yingjun No.1 Mine

作　　者：潘长斌 吕兆海 王斌 蒙晓斌 朱宏 PAN Changbin;LYV Zhaohai;WANG Bin;MENG Xiaobin;ZHU Hong(Inner Mongolia Weihua Mining Co.,Ltd.,Etokeqianqi,Inner Mongolia 016215;CHN Energy International Development Co.,Ltd.,Beijing 100011)

机构地区：[1]内蒙古维华矿业有限责任公司,内蒙古鄂托克前旗016215 [2]国家能源集团国际发展有限公司,北京100011

出　　处：《能源科技》2024年第1期27-31,共5页Energy Science and Technology

摘　　要：断层构造是划分井田及其采区边界的重要依据,也是作为矿井充水通道影响含水层富水性的重要因素。断层构造富导水性一定程度上决定矿井防治水工作的难易程度。鹰骏一号矿井分布突水危险性较大的剥蚀区域,基于三维地震探测基础上采用瞬变电磁探测法,并结合钻孔测井曲线物性反应分析与研究出11条断层部位的富导水性。井田内断层富导水性部位主要位于二煤层与八煤层顶板砂岩层中,确定出7条断层在二煤层顶板砂岩层中存在局部富水异常区,4条断层在该部位未见富水异常区;确定出8条断层在八煤层顶板砂岩层中存在局部富水异常区,3条断层在该部位未见富水异常区。通过2个地质勘探钻孔在施工阶段存在跳钻与卡钻、孔内缩径与岩层跨落、泥浆漏失现象以及含水层抽水试验水位标高等资料综合分析出DF37断层具有富导水性。采用钻孔内岩层密度、电阻率、自然伽马异常测井资料与含水层水质含量差异性研究断层破碎带的富导水性取得了一定效果。采用以上方法确定断层富导水性,为矿井防治水工作及安全生产提供了地质保障。The fault structure is an important basis for dividing the oilfield and its mining area boundaries.It also plays a crucial role as a water inflow pathway in the mine,which affects the aquifer's degree of water enrichment.The water enrichment and conductivity of fault structures determines the difficulty level of water prevention and control work in mines to some extent.The Yingjun No.1 Mine is distributed with areas prone to high risk of sudden water influx due to erosion.Based on 3Dseismicdetection,the transient electromagnetic detection method is employed to analyze and research the water enrichment and conductivity of 11 fault locations,combining the analysis of physical property responses from logging curves.The areas within the well field with water enrichment and conductivity are mainly located in the sandstone layer at the roof between the second and eighth coal seams.Seven faults with localized water enrichment anomalies are identified in the sandstone layer of the second coal seam roof,with another four faults without such anomalies in the same area.Eight faults with localized water enrichment anomalies are identified in the sandstone layer of the eighth coal seam roof,with another three faults without such anomalies in the same area.Through comprehensive analysis of data from two geological exploration boreholes,issues such as bit bouncing and sticking,borehole diameter narrowing and rock strata collapse,mud loss,and water level elevation during aquifer pumping test are identified for DF37 fault,indicating its water enrichment and conductivity.The use of logging data on rock density,resistivity,natural gammaray logging anomalies,and the study of differences in water quality and content in aquifers has yielded positive results in determining the water enrichment and conductivity of faults.The determination of water enrichment and conductivity of faults using the above methods provides geological support for mine water prevention and control and ensures safety in production.

关 键 词：断层构造 富导水性 瞬变电磁 测井成果 

分 类 号：TD74[矿业工程—矿井通风与安全]