The experimental results of the microscopic displacement indicate that WG flows preferentially through the larger channels occupied previously by injected water in WG injection process.

• 微观驱替实验结果表明，弱凝胶沿原先被水占据的大孔道流动，并且可以通过变形被挤入窄小孔喉，在弱凝胶的前沿存在稳定的水胶界面。