| 评价生物气生成量、生成期的碳同位素平衡法及其应用 |
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| 引用本文： | 卢双舫,徐庆霞,刘绍军,申家年,薛海涛,王民,胡慧婷.评价生物气生成量、生成期的碳同位素平衡法及其应用[J].沉积学报,2008,26(2):308-313. |
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| 作者姓名： | 卢双舫 徐庆霞 刘绍军 申家年 薛海涛 王民 胡慧婷 |
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| 作者单位： | 大庆石油学院黑龙江大庆163318 |
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| 基金项目： | 国家自然科学基金
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高等学校博士学科点专项科研项目
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中国石油股份有限公司攻关研究的资助项目 |
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| 摘 要： | 生物气的生成期对其成藏有至关重要的制约作用，但目前国内外尚缺少可信、有效方法来对此进行评价。针对这一难题，考虑到无论生物气的生成机理如何，转化前的有机质和转化后的残余有机质及产物的13C、12C的总量应该守恒，本文探索并建立了评价生物气生成量的碳同位素平衡法，并利用松辽盆地的实际分析数据，对这一评价方法（模型）进行了标定和应用。结果表明:Ⅰ、Ⅱ、Ⅲ型有机质累计产生物成因甲烷气的量分别约为193.94 ml/g、175.64 ml/g、161.71 ml/g。区内源岩生物气的生成量约为385.4×1012 m3；生物气的主要生成期在嫩江组沉积末期之前；区内生物气的可能资源量介于11.40×1011～24.8×1011 m3之间。
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| 关 键 词： | 生物气生气量成气期碳同位素平衡法资源量 |
| 文章编号： | 1000-0550(2008)02-0308-06 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 2007年6月18日 |
The Carbon Isotopic Equilibrium Method of Evaluating the Biogas-generated Quantity and the Generation Period: its application |
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| LU Shuang-fang,XU Qing-xia,LIU Shao-jun,SHEN Jia-nian,XUE Hai-tao,WANG Min,HU Hui-ting.The Carbon Isotopic Equilibrium Method of Evaluating the Biogas-generated Quantity and the Generation Period: its application[J].Acta Sedimentologica Sinica,2008,26(2):308-313. |
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| Authors: | LU Shuang-fang XU Qing-xia LIU Shao-jun SHEN Jia-nian XUE Hai-tao WANG Min HU Hui-ting |
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| Institution: | Daqing Petroleum Institute, Daqing, Heilongjiang, 163318 |
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| Abstract: | The biogas generation period plays a very important role in its accumulation. But now there is not a creditable and effective method to appraise it. Aiming at this difficult problem, and considering it′s a carbon isotope balance process, regardless of the formation mechanisms of biogenic gas. The 13C and 12C amount of initial organic matter before generation and that of residual organic matter and other productions after generation should keep conservation. Carbon isotopic equilibrium method (model) is explored and established to assess biogenic gas in this paper, which is demarcated and applied according to the abundant analyzed data in Songliao basin. Results show that the accumulatively generated biogenic methane ofⅠ, Ⅱ and Ⅲ types organic matters are 193.94 ml/g, 175.64 ml/g and 161.71 ml/g, respectively. The biogas generated quantity of source rock in the research area is about 385.4 ×1012 m3. The major period of biogenic gas generation occurs before the end of Nenjiang period. The possible biogas resource is between 11.40×1011m3 and 24.8×1011m3. |
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| Keywords: | biogas gas-generated quantity generation period carbon isotopic equilibrium method resource quantity |
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