石油地质与工程2025，Vol.39Issue(3)：48-60,67,14.
基于微观孔隙-裂缝配置关系的页岩油储层评价及启示
Evaluation of shale oil reservoirs based on microscopic pore-fracture configuration relationships and implications for revelation
摘要
Abstract
During the complex geological deposition and diagenesis process,the distribution of minerals and organic matter is affected by formation pressure,temperature and tectonic movement,which makes the con-figuration parameters,such as the scale,occupancy ratio and connectivity of microscopic pores and frac-tures,change,and affects the degree of shale oil enrichment.In this study,a new idea of evaluating shale oil reservoirs based on microscopic pore-fracture configuration relationship is proposed by taking a typical terrestrial shale in a Chinese basin as an example.Through experiments such as field emission scanning electron microscopy,nuclear magnetic resonance,and high-pressure mercury pressure in a large spliced field-of-view area,it is clarified that shale develops a total of five types of pore-seam configurations,including discrete inorganic pore-organic fracture,discrete organic pore-inorganic fracture,discrete inor-ganic pore-organic fracture.Among them,the organic pore-inorganic fracture connected shale is charac-terized by well-developed organic pores,high porosity,high proportion of large-scale pores and frac-tures,good connectivity,high oil content,and continuous and stable high production of shale oil after frac-turing,which can be used as the most favorable target.In addition,based on the contact relationship among pores,fractures,and shale oil,four occurrence modes of shale oil were established from a micro-mecha-nism perspective:inorganic pore-organic fracture discrete type,organic pore-inorganic fracture discrete type,inorganic pore-inorganic fracture connected type,and organic pore-inorganic fracture connected type.These modes provide references for shale oil exploration and development.关键词
孔隙/微裂缝/配置关系/页岩油/储层评价Key words
porosity/microfracture/configurational relationships/shale oil/reservoir evaluation分类
石油、天然气工程引用本文复制引用
王锦..基于微观孔隙-裂缝配置关系的页岩油储层评价及启示[J].石油地质与工程,2025,39(3):48-60,67,14.基金项目
中原油田分公司科技信息部项目"薄互层页岩油地质评价及增储技术研究"(QDLY2306-01). （QDLY2306-01）
