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将倒置荧光显微镜、反射式显微物镜、微透镜、光纤和荧光分光光度计等有机地融合为一体,建立了测量单个油气包裹体的紫外-可见显微荧光光谱装置,该装置无需对显微镜做任何技术改造。实测了伏4井(泉三段,吉林油田)单个油气包裹体的紫外-可见显微荧光光谱。通过250 nm激发下的荧光光谱定性地推测油气包裹体中古油所含芳烃主成分,结果表明液态油气包裹体的重质烃相对含量比气液包裹体多。通过365 nm激发下的荧光光谱计算了油气包裹体的色度坐标,克服了人眼判断颜色的主观性。同一储层单个油气包裹体的紫外-可见显微荧光光谱及色度表明该储层在二期充注时可能有两个成熟度不同的母源。
An inverted fluorescence microscope, a reflective microscope, a microlens, a fiber optic and a fluorescence spectrophotometer are organically integrated into one, and an ultraviolet-visible fluorescence spectrometer for measuring single oil-gas inclusions is established. The device does not need to do the microscope Any technical transformation. The UV-Vis fluorescence spectra of individual oil-gas inclusions in Well F4 (Quan3 Member, Jilin Oilfield) were measured. The main components of aromatics contained in the ancient oil in oil-gas inclusions were qualitatively estimated by fluorescence spectra excited at 250 nm. The results show that the relative content of heavy hydrocarbons in liquid petroleum inclusions is higher than that of gas-liquid inclusions. The chromaticity coordinates of oil-gas inclusions were calculated by the fluorescence spectrum excited at 365 nm, which overcomes the subjectivity of color judgments by human eyes. The UV-Vis fluorescence spectra and chromaticity of a single hydrocarbon inclusion in the same reservoir suggest that there may be two maturity maternal sources in this reservoir at the second filling stage.