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渤海湾盆地沧东凹陷孔二段致密储层孔隙结构定量表征

Xu Zu-xin,Zhang Yi-jie,Wang Ju-feng, Liu Hai-tao,Jiang Wen-ya

Natural Gas Geoscience（2016）

Cited 3|Views3
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Abstract
致密储层孔隙结构评价对致密油勘探开发具有重要意义.利用岩心观察、铸体薄片、扫描电镜(SEM)、氩离子抛光—扫描电镜(Ar-SEM)等多种方法,对比研究了致密砂岩、致密白云岩和泥页岩3类致密储层的孔隙结构特征及差异性.利用ImageJ软件处理和分析SEM图像及Ar-SEM图像.对SEM图像进行伪彩色增强,突出显示其孔隙结构特征,再利用灰度值定量识别了致密储层的孔隙;对Ar-SEM图像进行二值化处理,定量评价了储层中不同孔隙类型的孔隙数目、孔径大小、面孔率、分形维数等参数.
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Key words
Quantitative characterization,Pore structure,Cangdong Sag,ImageJ software,Tight reservoir
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