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有机包裹体特别是石油包裹体的荧光颜色是鉴定有机包裹体和指示油气成熟度的有效手段.基于石油的荧光性,通过荧光光谱分析方法,对石油包裹体的荧光光谱进行定量化描述,利用其主峰波长(λmax)、荧光强度及红绿商等属性参数,开展油气充注期次的判识.通过偏光显微镜、荧光显微镜等技术手段,对塔北隆起鹰山组-一间房组38个样本的石油包裹体进行了荧光颜色、显微光谱谱形和红绿商值的研究.样品中检测到黄绿色荧光、绿色荧光和蓝白色荧光3类石油包裹体,且这3类石油包裹体的同生盐水包裹体温度具有可区分的温度范围,对应的盐水包裹体平均温度分别是:56.5、88.3、130.1℃.综合地球化学方面的研究成果,结合主峰波长、荧光强度、红绿商以及石油包裹体同生的盐水包裹体温度等参数分析认为,研究区储层中的原油至少来源于2个不同烃源的3期油气充注,具有多源多期充注的成藏特征.
The fluorescence color of organic inclusions, especially petroleum inclusions, is an effective means to identify organic inclusions and indicate the maturity of oil and gas.Based on the fluorescence of oil, the fluorescence spectra of petroleum inclusions are quantitatively described by fluorescence spectroscopy The main peak wavelength (λmax), fluorescence intensity and red-green quotient and other attributes parameters, to carry out the identification of oil and gas injection period.Through polarized light microscopy, fluorescence microscopy and other technical means, the Tabei uplift Yingshan group - a house group 38 Three samples of petroleum inclusions were studied by fluorescence color, microspectroscopic spectrum and red-green quotient. Three kinds of petroleum inclusions, yellow-green fluorescence, green fluorescence and blue-white fluorescence were detected in the samples, and these three types of petroleum inclusions The synchronic brine inclusions have distinguishable temperature ranges and the corresponding average temperature of brine inclusions are respectively 56.5, 88.3 and 130.1 ° C. Based on the research results of integrated geochemistry, combining with the main peak wavelength, fluorescence intensity, And the temperature of brine inclusions in petroleum inclusions. It is considered that the crude oil in the reservoirs in the study area originated from the filling of three phases of hydrocarbon deposits from two different hydrocarbon sources, A number of multi-source charge accumulation characteristics of injection.