摘要
Abstract
Through field section observation and sample collection in the northeastern part of the Ordos Basin,and testing using ordinary thin slices,cast thin slices,physical property analysis and scanning electron microscopy,the diagenesis characteristics of the Zhiluo Formation sandstone are studied to clarify the petrographic characteristics,pore characteristics,physical properties and diagenesis characteristics of the sandstone,and discuss the basic characteristics of the Zhiluo Formation sandstone in the Ordos Basin.The results show that the reservoir lithology of Zhiluo Formation in the study area is dominated by lithic sandstone and lithic sandstone.The pore types of sandstone are mainly intergranular pores,intergranular dissolved pores and intragranular dissolved pores,and the physical characteristics are mainly ultra-low porosity and ultra-low permeability.The diagenesis is mainly manifested by compaction,cementation and dissolution.关键词
鄂尔多斯盆地/直罗组/成岩作用/岩石学/溶孔Key words
Ordos Basin/Zhiluo Formation/diagenesis/petrology/dissolved porosity分类
天文与地球科学
