地球物理测井在木里煤田江仓矿区煤岩层对比中的应用
发布时间：2018-09-07 16:25
【摘要】：木里煤田江仓矿区位于青海省天峻县,与聚乎更矿区、弧山煤矿三者共同构成了木里煤田中部含煤矿带,是青海省重要煤炭矿产地之一。江仓矿区是木里煤田中最大的矿区,矿区累计获得煤炭资源／储量20.83亿吨,煤质以焦煤为主。江仓矿区位于木里煤田中部,矿区呈北西西向展布,面积约55Km2,属侏罗系中下统陆相碎屑岩含煤建造,矿区内含煤地层厚度可达596.01m。共含煤20层(组),由上至下依次编号为1煤—20煤。本文在对江仓矿区的区域地质、构造以及矿区地质特征综合研究的基础上,通过对矿区地层及地球物理特征的分析,建立了该区的煤层及其它岩层的定性、定厚解释原则,并对江仓矿区主要煤层进行了对比,总结了该区的主要可采煤层的地球物理特征,并做了煤层对比可靠性的评价。勘探实践证明煤田地球物理测井能够提供准确、可靠的煤层、岩层以及构造等方面的成果资料,弥补了钻探施工过程中的缺陷,验证了分层鉴定的成果；并利用煤岩层的地球物理特征,进行了准确的煤岩层对比,得到的煤层分布和厚度资料可信度较高。煤田地球物理测井在煤岩层对比方面具有独特的优势,方法可靠、可操作性强,从而提高了勘探效率和勘探工程质量。
[Abstract]:Jiangcang mine area in Muli coalfield is located in Tianjun County of Qinghai Province. It is one of the important coal mining areas in Qinghai Province. Jiangcang mining area is the largest mining area in Muli coal field. The coal resources / reserves are 2.083 billion tons in the mining area. The coal quality is mainly coking coal. Jiangcang mine area is located in the middle of Muli coalfield, and the mining area is about 55 km ~ 2. It is a coal-bearing formation of Jurassic middle and lower continental clastic rocks, and the thickness of coal bearing strata in the mining area can reach 596.01 m. A total of 20 coal layers (groups), from top to bottom code for 1 coal-20 coal. Based on the comprehensive study of regional geology, structure and geological characteristics of Jiangchang mining area, through the analysis of strata and geophysical characteristics of mining area, the qualitative and definite thickness interpretation principles of coal seam and other strata in this area are established in this paper. The main coal seams in Jiangcang mining area are compared, the geophysical characteristics of the main mineable coal seams in this area are summarized, and the reliability evaluation of coal seam contrast is made. The exploration practice has proved that the coalfield geophysical logging can provide accurate and reliable data of coal seams, strata and structures, which make up for the defects in drilling construction and verify the achievements of stratification identification. Based on the geophysical characteristics of coal and rock strata, the accurate correlation of coal and rock strata is carried out, and the data of coal seam distribution and thickness are obtained with high reliability. Coalfield geophysical logging has a unique advantage in coal bed correlation, the method is reliable and operable, thus improving the exploration efficiency and exploration engineering quality.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P631.81;P618.11
本文编号：2228790
[Abstract]:Jiangcang mine area in Muli coalfield is located in Tianjun County of Qinghai Province. It is one of the important coal mining areas in Qinghai Province. Jiangcang mining area is the largest mining area in Muli coal field. The coal resources / reserves are 2.083 billion tons in the mining area. The coal quality is mainly coking coal. Jiangcang mine area is located in the middle of Muli coalfield, and the mining area is about 55 km ~ 2. It is a coal-bearing formation of Jurassic middle and lower continental clastic rocks, and the thickness of coal bearing strata in the mining area can reach 596.01 m. A total of 20 coal layers (groups), from top to bottom code for 1 coal-20 coal. Based on the comprehensive study of regional geology, structure and geological characteristics of Jiangchang mining area, through the analysis of strata and geophysical characteristics of mining area, the qualitative and definite thickness interpretation principles of coal seam and other strata in this area are established in this paper. The main coal seams in Jiangcang mining area are compared, the geophysical characteristics of the main mineable coal seams in this area are summarized, and the reliability evaluation of coal seam contrast is made. The exploration practice has proved that the coalfield geophysical logging can provide accurate and reliable data of coal seams, strata and structures, which make up for the defects in drilling construction and verify the achievements of stratification identification. Based on the geophysical characteristics of coal and rock strata, the accurate correlation of coal and rock strata is carried out, and the data of coal seam distribution and thickness are obtained with high reliability. Coalfield geophysical logging has a unique advantage in coal bed correlation, the method is reliable and operable, thus improving the exploration efficiency and exploration engineering quality.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P631.81;P618.11
【引证文献】
相关会议论文 前1条
1 刘玉芳;马延荣;;我国煤田测井技术的发展[A];山东地球物理六十年[C];2009年
，本文编号：2228790
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