Table 6 Key parameters for calculation of capilary numbers.

From: Microfluidics study on immiscible displacement mechanisms of oil by hybrid low salinity water and polymer in fractured porous media

Sample

Viscosity (mPa s)

IFT (mN/m)

Capillary number

Change of contact angle (°)

10xdSW

0.997

15

2.30 × 10− 9

50

SW

1.117

9.9

3.91 × 10− 9

25

2xcSW

1.216

5.7

7.40 × 10− 9

0

2xcSW + 1000 ppm HPAM

14

6.1

7.97 × 10− 8

20

SW + 1000 ppm HPAM

72

10.6

2.36 × 10− 7

45

10xdSW + 1000ppm HPAM

165

15.4

3.72 × 10− 7

85

Back to article page