鄂尔多斯盆地悦乐地区长8油层组储层特征研究

Study on reservoir characteristics of Chang 8 formation in Yuele area of Ordos Basin

为了弄清悦乐地区储层的物性特征,对悦乐地区采样做岩石薄片、铸体薄片、扫描电镜等测试,对测试数据分析发现该区岩石类型以长石岩屑砂岩和岩屑长石砂岩为主,原生粒间孔、粒内溶蚀孔是悦乐地区区长8主要的储集空间;储层物性较差,为典型的致密储层。

In order to find out the physical characteristics of the reservoirs in Yuele area,samples were taken from Yuele area for rock flakes,cast slices,and scanning electron microscopy.The test data analysis showed that the rock types in the area were feldspar sandstone and rock debris feldspar sandstone.Mainly,The original intergranular hole and intergranular erosion hole are the main storage space of 8 heads of Yuele area;The reservoir has poor physical properties and is a typical dense reservoir.