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3 山西组典型致密砂岩样品的恒速压汞实验参数
Table 3 Parameters derived from the rate-controlled porosimetry tests of typical tight sandstone samples from Shanxi Formation
样品编号

平均孔隙

半径/μm

平均喉道

半径/μm

平均

孔喉比

总进汞

饱和度/%

孔隙进汞

饱和度/%

喉道进汞

饱和度/%

排驱压力/MPa孔隙组合类型
1#181.381.44187.6292.1471.1920.950.350粒间孔—溶孔—晶间孔型
2#148.661.10143.2055.0417.4937.560.309粒间孔—溶孔—晶间孔型
3#159.961.05238.0968.7042.9625.730.350溶孔—晶间孔型
4#164.211.13132.5772.1432.9939.140.231溶孔—晶间孔型
5#149.230.71187.7359.5024.1135.390.606溶孔—晶间孔型
6#141.130.48240.6533.075.9527.130.939溶孔—晶间孔型
7#121.510.59183.7253.8112.8740.940.790晶间孔型
8#127.300.30435.6752.5730.1822.400.897晶间孔型