稳定性对功能型聚合物渗流规律的影响

Effect of Stability on Seepage Law of Polymer Surfactant

功能型聚合物的稳定性指的是在配制完成后,随着时间的推移,其黏弹性、乳化能力等性质的稳定程度。在驱油实验中,相较于静置前的功能型聚合物,静置后的功能型聚合物驱阶段在低渗透层采出油占比提高了5.61%。说明受稳定性影响后,功能型聚合物溶液能有效封堵特高、高渗的大孔道,使低渗层的剩余油能得到极大动用。

The stability of polymer surfactant refers to the degree of stability of viscoelasticity, emulsifying property and other properties over time after the formulation is completed. In this paper, compared with the polymer surfactant before standing, the proportion of recovery in low permeability layer was increased by 5.61% through polymer flooding with the polymer surfactant after standing, which indicated that, due to the effect of stability, the polymer surfactant solution after standing effectively blocked the large pores in ultra-high and high permeable layers to greatly utilize the remaining oil of the low permeability layer.