Insights into Pore Structure and Fractal Characteristics of the Lower Cambrian Niutitang Formation Shale on the Yangtze Platform,South China

作     者：Zixuan Liu Detian Yan Xing Niu Zixuan Liu;Detian Yan;Xing Niu

作者机构：Key Laboratory of Tectonics and Petroleum ResourcesMinistry of EducationChina University of GeosciencesWuhan 430074China School of Earth ResourcesChina University of GeosciencesWuhan 430074China Sedimentary Basin Research CenterYangtze UniversityWuhan 430074China 

出 版 物：《Journal of Earth Science》 (地球科学学刊（英文版）)

年 卷 期：2020年第31卷第1期

页      面：169-180页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0704[理学-天文学] 

基　　金：supported by the National Natural Science Foundation of China(Nos41690131,41572327,41273001) the Program of Introducing Talents of Discipline to Universities(No.B14031) 

主　　题：Niutitang Formation Yangtze area shale pore structure fractal features 

摘      要：Shales from the Lower Cambrian Niutitang Formation of Yangtze Platform have been widely investigated due to its shale gas *** better illustrate the pore structure and fractal characteristics of shale,a series of experiments were conducted on outcrop samples from the Lower Cambrian Niutitang Formation on Yangtze Platform,including X-ray diffraction(XRD),field-emission scanning electron microscopy(FE-SEM) and low-temperature nitrogen ***-Halsey-Hill(FHH) model was adopted to calculate the fractal ***,the relationships between fractal dimensions and pore structure parameters and mineral composition are ***-SEM observation results show that interparticle pores are most developed in shale,followed by intraparticle *** study identified the fractal dimensions D1(ranging from 2.558 0 to 2.710 2) and D2(ranging from 2.541 5 to 2.765 2).The pore structure of the Niutitang Formation shale is primarily controlled by quartz and clay *** dimensions are able to characterize the pore structure complexity of Niutitang Formation shale because D1 and D2 correlate well with average pore diameter and quartz content.