Microstructural Characteristics of the Cretaceous Qingshankou Formation Shale, Songliao Basin
详细信息
- 责任者：Huang Zhenkai (State Key Laboratory of Enhanced Oil Recovery ; Beijing 100083 ; China) ; Chen Jianping
- 刊名：Petroleum Exploration and Development
- 出版年：2013
- 卷期：40(1)
- 关键词：页岩 ; shale ; 孔隙结构 ; pore structure ; 储集空间 ; reservoir space ; 松辽平原 ; Songliao Plain
- 页码：p.58-65
- 图表：illus., 2 tables, 25 refs.
- 分类号：1003
- issnNo：ISSN1000-0747
- isbnNo：CN11-2360/TE
摘要
To research the characteristics and petroleum geological significance of micro pores,this paper uses Second Electron Microscope(SEM) and secondary SEM imaging capability in Field Emission SEM(FE-SEM) to characterize shale from the first member of the Cretaceous Qingshankou Formation,Songliao Basin.There are five major pore types in the shale,including matrix intercrystal,organic,dissolution,interparticle,and intracrystalline pores.In addition,there are a mass of micro-fractures of micron-submicron(nano-) scale,including dissolution,filled and interlayer fractures.The existence of complex fracture-pore systems provides an effective pathway for primary migration and it also provides ample storage space for the residual petroleum in shale,which is important for the primary migration and storage for shale oil and gas resources.
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