黄县盆地西部油页岩沉积特征与成矿机理研究

发布时间：2018-05-13 19:22

本文选题：黄县盆地 + 油页岩特征　；参考：《中国矿业大学》2015年硕士论文

【摘要】：黄县盆地为一中生代形成、新生代继承发展的近海煤与油页岩共生盆地。盆地内地层沉积受黄县—九里店大断层控制。本文通过对研究区内北皂矿井、梁家矿井以及北马资源接替区进行井下和钻孔岩石样品系统的采样和分析测试,以及对区域各层油页岩详细的化验数据的搜集,并通过宏观微观相结合的分析方法,分析研究了研究区内部油页岩含油率特征、赋存特征、地球化学特征等。通过大量的钻井岩心、露头、测井曲线的观察与分析,划分出盆地内油页岩地层沉积相类型；以单井沉积相为基础,分析黄县盆地研究区内部朱壁店组和李家崖组沉积相垂向特征。对黄县盆地西部含煤与油页岩层系进行了层序地层划分及对比,通过单井层序地层分析和连井层序地层划分确定盆地煤与油页岩形成于水进体系域的湖泊沼泽环境。对北皂1403工作面主采层油2段上下7.9m内的油页岩、炭质泥岩、含油泥岩进行连续采样,以此为例,根据微量元素测试分析结果,进一步论证了盆地煤与油页岩形成于温暖而潮湿气候下的淡水到半咸水的浅水环境。在此基础上,通过构造作用、沉积环境分析和有机质来源等研究,确定了研究区煤与油页岩生成和分布控制因素,总结了黄县盆地研究区煤与油页岩的共生规律,最后作出油页岩成矿模式图。
[Abstract]:Huangxian Basin is a Mesozoic and Cenozoic inherited offshore coal and oil shale symbiotic basin. The deposit of the inland layer of the basin is controlled by Huangxian-Jiulidian big fault. In this paper, the samples and analysis of rock samples from underground and drilled rock in Beizhai Mine, Liangjia Mine and Beima Resource replacement area in the study area, as well as the collection of detailed laboratory data of oil shale in various layers of the region, are carried out. The characteristics of oil shale oil content, occurrence and geochemistry in the study area are analyzed by combining macro and micro analysis methods. Through the observation and analysis of a large number of drilling cores, outcrops and log curves, the sedimentary facies of oil shale formation in the basin are divided into two types, which are based on single well sedimentary facies. The vertical characteristics of sedimentary facies of Zhubiedian formation and Lijiaya formation in Huangxian Basin are analyzed. The sequence stratigraphic classification and correlation of coal-bearing and oil shale strata in the west of Huangxian Basin are carried out. The lacustrine swamp environment formed by coal and oil shale in the basin is determined by single-well sequence stratigraphic analysis and multi-well sequence stratigraphic division. The oil shale, carbonaceous mudstone and oil-bearing mudstone are continuously sampled from the oil shale, carbonaceous mudstone and oil-bearing mudstone in the upper and lower parts of the main oil layer of Beizao 1403 working face. The results of trace element test and analysis are taken as an example. The shallow water environment from fresh water to brackish water formed by coal and oil shale in warm and humid climate in the basin is further demonstrated. On this basis, through the study of tectonic action, sedimentary environment analysis and source of organic matter, the factors controlling the formation and distribution of coal and oil shale in the study area are determined, and the symbiotic law of coal and oil shale in the study area of Huangxian Basin is summarized. Finally, the metallogenic model map of oil shale is made.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.12

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