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| 两种侏罗系煤的油气生成定量对比研究 | |
| 引用本文： | 高岗,韩德馨,王延斌,石军.两种侏罗系煤的油气生成定量对比研究[J].现代地质,2003,17(1):105-109. |
| 作者姓名： | 高岗 韩德馨 王延斌 石军 |
| 作者单位： | 1. 中国矿业大学,资源与安全工程学院,北京,100083;石油大学,资源与信息学院资源与环境科学系,北京,102200 2. 中国矿业大学,资源与安全工程学院,北京,100083 3. 新疆油田分公司陆梁油田作业区,克拉玛依,新疆,834000 |
| 基金项目： | 中国石油天然气股份有限公司主要含油气盆地资源评价项目，石油大学教育部油气藏重点实验项目。 |
| 摘 要： | 在加水热模拟条件下通过对不同有机质类型煤的生油气特征及其演化的对比研究,校正模拟实验的Ro,建立了油气生成的定量数学模型。研究认为,煤的油气生成特征与其有机质类型和演化阶段有关:高碳煤的有机碳含量变化不明显,甚至有增加的趋势,不必恢复其有机质丰度;低碳煤的有机碳含量随演化程度的增加而降低,但幅度不大,对其有机碳含量可适当恢复。煤的生油量大小与其有机质类型的好坏成正比,气油比则与有机质类型、成熟程度有密切的关系。在高过成熟阶段,有机质类型越好,气油比越高,气态烃生成量越大;而有机质类型越差,气油比越低,气态烃生成量越小。 |
| 关 键 词： | 侏罗系 油气生成 有机质类型 演化阶段 |
| 文章编号： | 1000-8527(2003)01-0105-05 |
| 修稿时间： | 2002年6月19日 |
QUANTITATIVE CONTRAST BETWEEN HYDROCARBON-GENERATING FEATURES OF TWO JURASSIC COALS |
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| Abstract: | Through research on hydrocarbon generating feartures and their evolution by hydrospyrolysis,the vitrinite reflection(Ro) in simulation are corrected and the quantitative mathematics model of hydrocarbon generation is established.It is thought that coals' petroleum generating charateristics are relative to organic matter type and evolution stage.For the coal with a high organic abundance,its organic carbon content does not show a distinct variation or has a increasing trend with rising evolution and may not be restored,whereas for the coal with a low organic matter abundance,its organic carbon content has a little amplitude of increasing and may be restored.The amount of generated oil or gas is positively relative to the type of organic matter, and the rate of hydrocarbon gas to oil is negative.At the high and post mature stage,the better the type of organic matter is,the higher the rate of gas to oil is and the more the generated gas hydrocarbon amount is;the poorer the type of organic matter is,the lower the rate of gas to oil is and the less the generated gas hydrocarbon amount is. |
| Keywords: | Jurassic hydrocarbon generation type of organic matter evolution stage |
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