测井技术2017，Vol.41Issue(3)：345-352,377,9.DOI:10.16489/j.issn.1004-1338.2017.03.018
基于分形理论的低渗透砂岩储层孔隙结构评价方法
Models Based on Fractal Theory to Assess Pore Structure of Low Permeability Sand Reservoirs
摘要
Abstract
The low permeability is the salient features of ES4reservoirs in the southern slope of Dongying sag.And the complex pore structure makes it difficult to evaluate reservoir.The pore structures of low permeability sandstone reservoir in ES4are analyzed based on core physical properties, casting thin sections and mercury injection data and are divided into 3 categories and 5 subcategories.From the point of view in fractal theory, the characterization of the types of pore structures by the fractal dimensions is confirmed after the discussion of the relationship between them respectively based on the mercury injection data, the T2 spectra of NMR and the CT images.It's a failed use in the log curves because of their regular relationship, but it's found that the box dimension of the curves of parameter R(K/φ) extracted from the function J works well in the characterization of the different types of pore structures and then tell the map art in the cross plot of curves like R, density, GR in the profile of wells.关键词
测井解释/低渗透砂岩/孔隙结构/核磁共振/分形/压汞曲线Key words
log interpretation/low permeable sandstone/pore structure/NMR/fractal theory/mercury injection curve分类
天文与地球科学引用本文复制引用
闫建平,何旭,耿斌,李兴文,郭红梅..基于分形理论的低渗透砂岩储层孔隙结构评价方法[J].测井技术,2017,41(3):345-352,377,9.基金项目
国家自然科学基金项目页岩气储层微观结构及岩石物理响应数值模拟研究(41202110) （41202110）
四川省应用基础研究计划项目泥页岩地层周期及高分辨率沉积旋回测井识别研究(2015JY0200) （2015JY0200）
四川省教育厅天然气地质创新团队(13TD0024) （13TD0024）
