黏土矿物和孔喉特征对致密砂岩可动流体分布的影响——以鄂尔多斯盆地东部山西组储层为例
李咪, 郭英海, 杨亦浩, 简阔, 茹忠亮, 李冠霖

Effects of clay minerals and pore-throat characteristics on the movable fluid of tight sandstones:A case study of the Shanxi Formation in eastern Ordos Basin
Mi LI, Yinghai GUO, Yihao YANG, Kuo JIAN, Zhongliang RU, Guanlin LI
表1 山西组典型致密砂岩样品的岩性、物性及孔隙发育特征
Table 1 Lithology, physical properties and pore characteristics of typical tight sandstone samples from Shanxi Formation

样品

编号

深度

/m

层位

孔隙度

/%

渗透率

/(10-3 μm2

岩性孔隙类型及面孔率/%孔隙组合类型
残余粒间孔粒间溶孔粒内溶孔晶间孔总面孔率
1#2 589.19山25.900.892 0石英砂岩2.002.500.001.005.50粒间孔—溶孔—晶间孔型
2#2 695.08山111.170.560 7岩屑石英砂岩1.001.004.000.506.50粒间孔—溶孔—晶间孔型
3#1 992.45山29.100.454 0岩屑石英砂岩0.000.001.500.502.00溶孔—晶间孔型
4#3 740.06山111.290.474 8石英砂岩0.000.006.501.508.00溶孔—晶间孔型
5#1 924.56山112.500.327 5岩屑砂岩0.000.001.501.002.50溶孔—晶间孔型
6#2 831.37山111.870.491 0岩屑砂岩0.000.000.201.001.20溶孔—晶间孔型
7#2 409.19山22.680.093 0岩屑砂岩0.000.000.000.200.20晶间孔型
8#2 196.48山15.200.291 0岩屑石英砂岩0.000.000.000.200.20晶间孔型