Origin mechanism of multiscale percolation phenomena of porous flow in reservoir is discussed, and the growth rule of displacing front is uncovered in the view of percolation.
指出油藏渗流中不同尺度的渗滤现象形成机制，从渗滤理论角度揭示驱替前缘的生长规律。
In the post-water flooding process, WG in the larger channels diverts the injected water entering the smaller pores and displacing residual oil to form oil bank in the front of the displacing water.
在后续注水过程中，存在于大孔道的弱凝胶迫使后续注入水改向进入未被注入水波及的小孔隙，驱替的残余油滴聚集并形成油墙。
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