Effects of pore structure on surfactant/polymer flooding-based enhanced oil recovery in conglomerate reservoirs
LIU Zheyu,LI Yiqiang,LENG Runxi,LIU Zhenping,CHEN Xin,HEJAZI Hossein
Table 1
Ion composition of the water used in the experiments.
Ion
Concentration/
(mg•L
-1
)
Ion
Concentration/
(mg•L
-1
)
Na
+
and K
+
489.9
CO
3
2-
63.0
Mg
2+
17.0
Cl
-
602.6
Ca
2+
72.1
SO
4
2-
19.2
HCO
3-
414.9