宁夏中卫香山煤田深井西勘查区煤层特征研究  

Study on coal seam characteristics in Shenjing West exploration area of Zhongwei Xiangshan coalfield,Ningxia

作　　者：杜鹏龙 王海波 员文强 张文剑 DU Penglong;WANG Haibo;YUAN Wenqiang;ZHANG Wenjian(Institute of Nuclear Geology,Ningxia Hui Autonomous Region,Yinchuan 750021,China)

机构地区：[1]宁夏回族自治区核地质调查院,宁夏银川750021

出　　处：《中国高新科技》2024年第21期57-59,共3页

基　　金：2022年度宁夏回族自治区地方急需矿产资源勘查项目(项目编号:NXYSDZC-2022-026)。

摘　　要：为分析研究深井西勘查区煤层发育情况,开展了煤层平面特征分析研究及煤质特征综合分析。结果表明,勘查区含煤地层为侏罗系中统延安组,勘查区共有可采煤层6层;延安组是以陆源碎屑岩为主的陆相沉积地层,分为3个岩段;勘查区西部及北部煤层厚度较大,南部及东部煤层厚度较小,以厚-巨厚煤层为主,整体厚度较为稳定;宏观煤岩类型以暗煤为主,显微煤岩类型为微镜惰煤;煤类为变质程度较低的烟煤,以不粘煤为主,长焰煤次之;煤质低灰-中灰、中高挥发分、特低硫-低硫、中高-高发热量煤。In order to analyze and study the coal seam development in Shenjing West exploration area,the plane characteristics analysis and comprehensive analysis of coal quality characteristics were carried out.The results show that the coal-bearing strata in the exploration area are Jurassic Middle Yan’an Formation,and there are 6 recoverable coal layers in the exploration area.Yan’an Formation is a continental sedimentary stratum dominated by terrigenous clastic rocks,which is divided into three rock segments.The thickness of coal seams in the western and northern parts of the survey area is large,and the thickness of coal seams in the southern and eastern parts is small,mainly thick-extremely thick coal seams,and the overall thickness is relatively stable.The macroscopic type of coal is mainly dark coal,and the microscopic type is microvitrinite.Coal is bituminous coal with low metamorphic degree,mainly non-stick coal,followed by long flame coal.Coal of low ash-medium ash,medium high volatile,extremely low sulfur-low sulfur,medium high-high calorific value coal.

关 键 词：煤层特征 煤质 深井西勘查区 

分 类 号：TD823[矿业工程—煤矿开采]