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荧光图像技术定量识别油层水淹程度

Fault-Block Oil & Gas Field(2007)

Cited 5|Views5
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Abstract
利用岩石样品中油质沥青、胶质沥青、水等 3 种孔隙流体组分在荧光颜色和荧光强度上具有可分性的特点,依据荧光颜色、荧光强度和荧光发光面积的差异判断油层水淹状况.指出了注入水含量的增加所引发油质沥青和胶质沥青浓度的变化是荧光颜色、荧光强度和发光面积发生改变的主要原因,给出了岩样荧光显微图像特征随含水上升时的变化规律,并对荧光图像的荧光波长和相对强度进行了量化.根据密闭取心井资料确立了油层水淹程度的定量判别标准.实际资料处理表明,水淹层判断的符合率达到77%,具有现场推广价值.
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Key words
wave length,watered-out degree.,relative intensity,fluorescence microscopic image,watered-out formation
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