鄂尔多斯盆地长7段页岩油渗吸驱油现象初探

吴志宇,高占武,麻书玮,赵继勇,时建超,李桢

Preliminary study on imbibition and oil displacement of Chang 7 shale oil in Ordos Basin

Zhiyu WU,Zhanwu GAO,Shuwei MA,Jiyong ZHAO,Jianchao SHI,Zhen LI

表4 不同界面张力下渗吸采出程度

Table 4 The degree of imbibition recovery under different interfacial tension

助排剂浓度/% 界面张力/（mN/m） 渗吸采出程度/% 木21-2 里21-2 安25-2 5 0.290 27.169 26.376 25.747 0.5 1.183 32.320 27.483 27.473 0.05 3.750 24.662 26.430 21.641 0.005 10.436 22.495 18.349 20.730