不同干酪根类型烃源岩热解石油与石油包裹体显微荧光光谱特征比较研究

项目名称： 不同干酪根类型烃源岩热解石油与石油包裹体显微荧光光谱特征比较研究

项目编号： No.41202088

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 平宏伟

作者单位： 中国地质大学（武汉）

项目金额： 25万元

中文摘要： 石油包裹体荧光颜色与其成熟度关系已经被广泛应用于油气成藏研究。然而，其荧光颜色不仅受控于其源岩的热成熟度还与源岩有机质类型、初次运移组分分馏、二次运移组分分馏以及包裹体捕获分馏等诸多地质过程有关。因此，弄清以上因素对石油包裹体荧光颜色的影响是分析其荧光颜色与其成熟度关系的前提。针对石油包裹体荧光颜色变化受多种因素控制问题，以不同类型干酪根源岩和石油包裹体为研究对象，采用烃源岩有限空间生油模拟实验、地质实例以及人工合成包裹体实验等方法对比研究了干酪根类型和成熟度、石油初次运移组分分馏、二次运移组分分馏以及包裹体捕获分馏等过程对其荧光光谱的影响，最终校正了不同类型干酪根源岩热解石油荧光颜色及光谱参数的变化。项目预期建立不同类型干酪根源岩成熟度（Ro）与石油包裹体荧光光谱参数（QF535）之间的定量关系，项目成果对于直接评价包裹体油对应源岩的成熟度以及约束烃源岩生烃史及油气成藏时期具有重要意义。

中文关键词： 油包裹体；荧光颜色；荧光光谱；生油；排烃

英文摘要： The relationship of fluorescence color of oil bearing fluid inclusion(OFI) and its maturity has be widely used in the oil and gas migration and accumulation. However, the fluorescence color of OFI is not only controled by the thermal maturity of its source rock, but also related to organic matter types of the source rock, primary migration compositional fractionation, secondary migration compositional fractionation and trapping fractionation of OFI an so on. Thereby, the premise for analysing the relationship between the fluorescence color of OFI and its maturity is to find out the effects of those factors above.Based on the problem that various factors dominate the alteration the fluorescense color,Resource rock with different types of kerogen and petroleum inclusions are taken as research objects, pyrolysis experiment of source rock in finite space, geological case studies and synthetic OFI experiment are conducted for quantitative evaluation of the effects of kerogen types and its thermal maturity, petroleum primary migration compositional fractionation, secondary migration compositional fractionation and trapping fractionation of OFI on the fluorescence spectrum of OFI, and the modification of spectrum parameter and fluorescense color will be calibrated according to the experiments and geological cases r

英文关键词： oil inclusion；fluorescent color；fluorescent spectrum；oil generation；hydrocabron expulsion