Experiments and Modeling on the Influence of Interfacial Tension on Imbibition Height of Low-Permeability Reservoir

Table 2

Results of imbibition experiments of rock samples in Group B.

Salinity (mg/L)	TOF-1 volume fraction [%]	Interfacial tension [mN/m]	Time of Stage I [min]	Imbibition height in Stage I [mm]	Imbibition rate in Stage I [mm/min]	Ultimate imbibition height [mm]
0	5	4.825	535	3.98	0.007	18.21
	0.5	8.613	462	15.07	0.033	19.92
	0.05	15.233	197	19.15	0.097	22.51
	0.005	21.715	175	19.46	0.111	24.03
	0.001	30.146	149	20.31	0.136	22.15
2500	5	4.967	492	12.75	0.026	21.15
	0.5	8.613	377	18.88	0.050	30.38
	0.05	15.411	170	22.64	0.133	43.15
	0.005	21.497	137	29.24	0.213	55.01
	0.001	30.214	125	30.15	0.241	35.07
25000	5	4.334	373	24.75	0.066	32.31
	0.5	8.145	353	25.36	0.072	44.48
	0.05	15.567	205	28.54	0.139	65.40
	0.005	21.602	127	35.75	0.281	80.59
	0.001	30.471	111	38.66	0.348	70.27
70000	5	4.723	347	33.99	0.098	84.23
	0.5	8.212	259	34.11	0.132	97.16
	0.05	15.924	223	88.94	0.399	135.28
	0.005	21.755	158	93.45	0.591	151.51
	0.001	30.256	105	95.92	0.914	148.78