测井技术2016，Vol.40Issue(5)：532-536,5.DOI:10.16489/j.issn.1004-1338.2016.05.003
铸体薄片微观参数提取及其与岩石电学参数的关系
On Pore Structure Parameters Extraction from Thin Section and Their Influence on Electricity Parameters
摘要
Abstract
Determinations of micro‐pore structure and resistivity index are important and difficult problems in complex sandstone reservoir log evaluation .T he casting thin sections are processed by 3D threshold value segmentation and morphological filtering technology to get high signal‐noise ratio images of pore‐skeletons .Combined with the geometry algorithm , the distribution features and the average of microscopic parameters including form factors ,ratio of pore vertical‐horizontal ,equivalent diameter and roundness can be obtained .Analyzed are the relationships among formation factor ,cementing index , tortuosity and those microscopic parameters above . Research shows that formation factor ,cementing index ,and tortuosity give a power exponent relates to average form factor and the power is negative ,give a power exponent relates to average equivalent diameter and the power is positive .More regular the rock pore shape is ,smaller the average equivalent diameter is ,then the rock resistivity is lower ,formation factor ,cementing index ,and tortuosity is smaller .Studied is the influence of microscopic pore structure parameter on electrical properties w hich can help improve accuracy of log interpretation and fluid saturation calculation .关键词
岩石物理试验/铸体薄片/孔隙微观参数/地层因数/阈值分割/滤波Key words
petrophysical experiment/thin section/microscopic pore structure parameter/forma-tion factor/threshold value segmentation/filtering分类
天文与地球科学引用本文复制引用
邓少贵,袁习勇,范宜仁,李达科..铸体薄片微观参数提取及其与岩石电学参数的关系[J].测井技术,2016,40(5):532-536,5.基金项目
中央高校基本科研业务费专项资金（27R1101064A）；国家科技重大专项（2011ZX05020-008）；国家自然科学基金（41174099）；中国石油天然气集团公司科学研究与技术开发项目 （）
