松辽盆地南部青山口组页岩储层特征及孔隙演化  

Characteristics and Pore Evolution of Shale Reservoirs in the Qingshankou Formation,Southern Songliao Basin

作　　者：吴雷 张淑梅 WU Lei;ZHANG ShuMei(East China Institute of Technology,School of Earth Sciences,330013,Nanchang,PRC;Jiangxi Bureau of Geology Non-ferrous Geological Brigade,341000,Ganzhou,Jiangxi,PRC)

机构地区：[1]东华理工大学地球科学学院,南昌330013 [2]江西省地质局有色地址大队,江西赣州341000

出　　处：《江西科学》2025年第1期36-44,共9页Jiangxi Science

基　　金：国家自然科学基金项目(41402085);东华理工大学核资源与环境重点实验室开放基金项目(NRE1403)。

摘　　要：富有机质湖相页岩是主要的页岩油储层,页岩的孔隙特征和孔隙演化对页岩油的富集非常关键,对于页岩油勘探开发具有重要意义。松辽盆地是我国最具潜力的陆相页岩油资源盆地之一,以松辽盆地南部滨浅湖相青山口组页岩为研究对象,分别从X井、C井和Q井青山口组岩心采样,利用场发射扫描电镜、纳米CT扫描、氮气吸附实验、高压压汞实验,探讨松辽盆地南部青山口组页岩孔隙特征及其孔隙演化规律,得出松辽盆地南部青山口组页岩储层以有机质中孔为主,孔隙演化程度受有机质成熟度影响可分为3个过程。Organic-rich lake-phase shale serves as the major reservoir for shale oil,and the pore characteristics and pore evolution of shale are very critical to shale oil enrichment,which is of great significance for shale oil exploration and development.Songliao Basin is one of China’s most promising basins for continental shale oil resources.The study took the shallow lake-phase Qingshankou Formation shale in the southern part of Songliao Basin as the research object,using cores samples from the X wells,the C wells and the Q wells,respectively.Through field-emission scanning electron microscope,nano-CT scanning,nitrogen adsorption experiments,and high-pressure mercury compression experiments,the pore characteristics and pore evolution patterns of the Qingshankou Formation shale in southern Songliao Basin were explored.The results show that the Qingshankou Formation shale reservoir in the southern Songliao Basin is primarily made of mesopores within organic matter.The degree of pore evolution can be divided into three processes by the maturity of organic matter.

关 键 词：页岩油 页岩 孔隙特征 孔隙演化 

分 类 号：P62[天文地球—地质矿产勘探]