应用原油和石油包裹体荧光寿命研究石油包裹体的成因演化和对应地面原油的密度

发布时间：2018-08-20 13:41

【摘要】：应用与时间相关的单光子计数法的(TCSPC)荧光寿命图像显微镜(FLIM),测定了塔中隆起地区密度在0.9521~0.7606g/cm~3的原油和多种类型的石油包裹体的荧光寿命.实验结果表明:原油密度与的平均荧光寿命的相关性较好,其线性回归方程为Y=-0.0319X+0.9411,可用来计算各类石油包裹体荧光寿命对应于本区地面原油的密度.塔里木盆地塔中1井储层中存在三种类型的石油包裹体,其中A类棕黄色荧光的石油包裹体的平均荧光寿命为2.144~2.764ns,约相当于本区地面原油密度为0.852~0.873g/cm~3,属于早期捕获的成熟油包裹体;B类浅黄白色荧光的石油包裹体的平均荧光寿命为4.209~4.919ns,约相当于本区地面原油密度为0.784~0.812g/cm~3,属于第2期捕获成熟度较高的轻质油包裹体;C类浅蓝绿色荧光的石油包裹体的平均荧光寿命为5.063~6.168ns,约相当于本区地面原油密度为0.743~0.779g/cm~3,属于第3期捕获成熟度很高的轻质油包裹体.
[Abstract]:The (TCSPC) fluorescence lifetime image microscope (FLIM),) with time-dependent single photon counting method was used to measure the fluorescence lifetime of crude oil and various types of oil inclusions in the density of 0.9521~0.7606g/cm~3 in the Tarim uplift area. The experimental results show that there is a good correlation between the density of crude oil and the average fluorescence lifetime, and the linear regression equation is Y-0.0319X 0.9411, which can be used to calculate the fluorescence lifetime of various types of oil inclusions corresponding to the density of crude oil on the ground in this area. There are three types of petroleum inclusions in the reservoir of well Tazhong 1 in Tarim Basin. The average fluorescence lifetime of A type brownish yellow oil inclusions is 2.144ns2.764ns, which is equivalent to the surface crude oil density of 0.852g / cm ~ (-3). The average fluorescence of petroleum inclusions with light yellowish white fluorescence of class B belongs to the early captured mature oil inclusions. The lifetime of the oil inclusion is 4.209 ~ 4.919ns, which is equivalent to the surface crude oil density of 0.784 ~ 0.812g / cm ~ (-3). The average fluorescence life of the oil inclusions belonging to the light-weight oil inclusions with high trapping maturity in the second period is 5.063 ~ 6.168ns, which is about the same as the surface crude oil in this area. The density is 0.743 ~ 0.779g / cm ~ (-1), which belongs to the light oil inclusions with high capture maturity in the third stage.
【作者单位】：中国科学院广州地球化学研究所;浙江大学地球科学学院;
【基金】：国家自然科学基金项目(批准号:41321002,41402116)资助
【分类号】：P618.13

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