本文選題：地質(zhì)構(gòu)造 + 煤層含氣性　； 參考：《西安科技大學(xué)》2017年碩士論文

【摘要】：我國是煤炭大國,煤炭在一次性能源生產(chǎn)、消費(fèi)結(jié)構(gòu)中比例占到700%以上,煤炭在保障中國能源安全中,起著重要作用。中國煤炭賦存地質(zhì)條件復(fù)雜,同時(shí)我國50%以上是高瓦斯、煤與瓦斯突出礦井,這使得礦井瓦斯賦存規(guī)律研究一直備受重視。論文以韓城礦區(qū)為研究對象,通過收集各個(gè)礦主要煤層的煤田地質(zhì)、瓦斯地質(zhì)和相關(guān)鉆孔資料,依據(jù)煤田地質(zhì)、瓦斯地質(zhì)、數(shù)理統(tǒng)計(jì)等理論,對研究區(qū)瓦斯賦存規(guī)律、構(gòu)造煤判識以及瓦斯致災(zāi)危險(xiǎn)區(qū)進(jìn)行研究,主要得到以下成果:1.通過統(tǒng)計(jì)分析礦區(qū)內(nèi)瓦斯鉆孔數(shù)據(jù),厘清了研究區(qū)煤層含氣性在層域和區(qū)域上的分布規(guī)律,系統(tǒng)研究了煤層賦存特征、煤級、煤質(zhì)、水文地質(zhì)、構(gòu)造等因素對煤層含氣性的影響作用。2.在系統(tǒng)研究含氣性分布規(guī)律的基礎(chǔ)上,通過結(jié)合各井田內(nèi)地球物理測井曲線,初步判識了研究區(qū)煤體結(jié)構(gòu)的分布特征;使用構(gòu)造曲率方法,對研究區(qū)地層變形特征進(jìn)行了刻畫,最后結(jié)合鉆孔巖芯分析對韓城礦區(qū)構(gòu)造煤進(jìn)行綜合預(yù)測和判識。3.在對礦區(qū)煤層含氣性特征和煤體結(jié)構(gòu)進(jìn)行研究之后,選取構(gòu)造、含氣量、圍巖以及煤級四個(gè)一級指標(biāo),基于層次分析法構(gòu)建了煤與瓦斯突出危險(xiǎn)性評價(jià)模型,對韓城礦區(qū)各主采煤層進(jìn)行災(zāi)害危險(xiǎn)性分區(qū),并分析其在垂向和平面上的分區(qū)特征。
[Abstract]:China is a big country of coal, coal in one-time energy production, consumption structure accounted for more than 700%, coal in ensuring China's energy security, plays an important role. The geological conditions of coal storage in China are complex, and more than 50% of the coal mines in China are high gas, coal and gas outburst mines. This paper takes Hancheng mining area as the research object, through collecting coal field geology, gas geology and related borehole data of each main coal seam, according to the theory of coal field geology, gas geology, mathematical statistics and so on, the paper studies the law of gas occurrence in the study area. Structural coal recognition and gas disaster risk areas are studied, the main results are as follows: 1. Through statistical analysis of gas drilling data in mining area, the distribution law of gas content of coal seam in the study area is clarified, and the characteristics of coal seam occurrence, coal rank, coal quality, hydrogeology are systematically studied. The influence of structure and other factors on the gas-bearing property of coal seam. On the basis of systematic study on the distribution law of gas-bearing property, the distribution characteristics of coal body structure in the study area are preliminarily identified by combining the geophysical logging curves in each well field, and the formation deformation characteristics in the study area are described by using the method of structural curvature. Finally, combined with drilling core analysis, comprehensive prediction and recognition of structural coal in Hancheng mining area are carried out. After studying the gas-bearing characteristics and coal body structure of coal seam in mining area, four primary indexes, namely structure, gas content, surrounding rock and coal rank, are selected, and the risk assessment model of coal and gas outburst is constructed based on AHP. The main coal seams in Hancheng mining area are divided into disaster risk zones and their vertical and plane zoning characteristics are analyzed.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD712.2

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