基于孔隙结构和多相渗流能力的鄂尔多斯盆地致密砂岩储层品质分类方法研究

徐风, 司兆伟, 梁忠奎, 田超国, 罗兰, 郭宇航

A method for quality classification of tight sandstone reservoirs in the Ordos Basin based on pore structures and multiphase seepage capacity

XU Feng, SI Zhao-Wei, LIANG Zhong-Kui, TIAN Chao-Guo, LUO Lan, GUO Yu-Hang

表3 太原组物性、孔隙结构和渗流性能分类阈值

Table 3 Classification thresholds for physical properties, pore structure and seepage performance of Taiyuan Formation

分类 物性 孔隙结构 渗流性能 一类 RQI>0.3 毛管压力一类 Krg/Krw>10 二类 0.3>RQI>0.2 毛管压力二类 10>Krg/Krw>0.01 三类 RQI<0.2 毛管压力三类 Krg/Krw<0.01