Comparison of oil displacement mechanisms and performances between continuous and dispersed phase flooding agents

Zhe SUN,Xingcai WU,Xiaodong KANG,Xiangguo LU,Qiang LI,Weidong JIANG,Jing ZHANG

Table 1 Ionic composition of water used in the experiment.

Ion type Ion content/ (mg·L-1) Ion type Ion content/ (mg·L-1) Na++K+ 1 265.0 SO42- 9.6 Ca2+ 32.1 CO32- 210.1 Mg2+ 7.3 HCO3- 1 708.6 Cl- 780.1 Total salinity/(mg·L-1) 4 012.7