电成像测井处理新技术在储层评价方面的应用
Progress in Geophysics（2020）
Abstract
为了更深入的研究电成像测井资料在储层评价方面的应用,针对碎屑岩、碳酸盐岩及薄互层三种类型的储层建立了三种新技术.通过对环井周电阻率数据进行统计,建立了电阻率谱技术及分选指数的计算方法,根据谱峰的宽窄及分选指数大小对碎屑岩储层分选性及非均质性进行评价,对于预测高产储层具有一定的指导意义;通过阿尔奇公式将环井周电阻率转换为孔隙度,并对孔隙度数据进行统计,建立了孔隙度谱技术及基质孔隙度及次生孔隙度的计算方法,对于评价碳酸盐岩储集层次生孔隙发育情况具有重要作用;利用电成像高分辨的优势,通过对薄互层电阻率进行统计,根据砂泥岩电阻率的差异,建立了薄互层有效厚度的计算方法,成为评价薄互层的一种重要手段.阐述了这些方法的基本原理及适应的岩性条件,拓展了电成像测井资料在储层评价方面的应用.
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