| 地史过程中煤岩显微组分含量的恢复及其意义 |
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| 引用本文： | 王雅春,庞雄奇.地史过程中煤岩显微组分含量的恢复及其意义[J].沉积学报,1998,16(4):114-117. |
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| 作者姓名： | 王雅春 庞雄奇 |
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| 作者单位： | 1 大庆石油学院 黑龙江安达 151400; |
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| 摘 要： | 在地史过程中煤岩显微组分的相对含量是变化的，用其现今实测值代替地史演化过程中的含量值计算生烃量势必产生误差。提出了一种恢复地史过程中煤岩显微组分相对含量的方法并进一步研究表明:煤岩中稳定组的相对含量在地史过程中变化最大，其次是镜质组和丝质组。用煤岩当前显微组分相对含量计算的地史过程中甲烷气、重烃气和液态烃的生成量较实际值要小，它们的最大偏差在理论上分别可达到14.04 % 、32.25%和 32.71 %.
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| 关 键 词： | 煤岩 显微组分 生烃量 |
| 收稿时间： | 1997-02-24 |
Recovery of the Content of Coal Macerals at Any Geohistory Time and Its Significance |
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| Wang Yachun,Pang Xiongqi,Lu Shuangfang.Recovery of the Content of Coal Macerals at Any Geohistory Time and Its Significance[J].Acta Sedimentologica Sinica,1998,16(4):114-117. |
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| Authors: | Wang Yachun Pang Xiongqi Lu Shuangfang |
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| Institution: | 1 Daqing Petroleum Institute,Anda Heilongjiang,151400;2 Petroleum University,Beijing,100083 |
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| Abstract: | The relative contents of coal macerals vary with geological time.Therefore,it muse make errors to calculate the amounts of hydrocarbons generated during geohistory based on the present testest maceral compositions.The present paper gives out a method for recovering the relative content of coal macerals in the geohistory.The further research shows that the relative content variation of the liptinite is the largest during the geohistorical process,then are the virtrinite and fusinite.And the amounts of CH 4, C 2 C 4 and liquid oil generated in coal during geohistory will be underestimated if the calculation is based on the present maceral compositions Their maximum theoretical deviations can reach to as high as 32.72%,32.25% and 14.04%,respectively. |
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| Keywords: | coal maceral amounts of hydrocarbons generated |
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