鄂尔多斯盆地镇北地区长8油层组砂岩成岩相与优质储层分布研究

Research on sandstone diagenetic facies and high-quality reservoir distribution of Chang 8 formation in Zhenbei area,Ordos basin

本文通过铸体薄片鉴定、扫描电镜、X-射线衍射和压汞分析等测试手段分析鄂尔多斯盆地镇北地区长8油层组砂岩成岩相的特征和优质储层分布,发现绿泥石膜胶结粒间孔成岩、溶蚀成岩相是优质储层。

Based on the test methods of thin section identification,scanning electron microscope X-ray Diffraction and mercury porosimetry,this paper analyses the characteristics of sandstone diagenetic facies and high-quality reservoir distribution of Chang 8 formation in Zhenbei area,Ordos basin.The results show that chlorite cementation-intergranular pore diagenetic facies,dissolution diagenetic facies are the most favorable reservoirs.