One of the mechanisms for disproportionate permeability reduction (DPR) is that a new flow path will be produced with the residual oil when oil flows through oil_bearing porous medium treated by the gel.

• 凝胶处理使油 /水相渗透率产生不均衡减少是由于油在通过凝胶时部分残余油占据的孔隙形成了新的流动通道 ;