Research Article
Enhancement of the Wettability and Lubrication of Shale Rock via Nanoemulsions
Figure 3
Contact angle of water droplets in air; rocks soaked in the nanoemulsion for various times, (a) 1 day, (b) 3 days, (c) 7 days, and (d) 9 days.
| (a) |
| (b) |
| (c) |
| (d) |