固体颗粒对油田采出水性质的影响

Effect of solid particle on quality of oilfield produced water

通过试验研究了固体颗粒对油水界面张力、界面剪切粘度、悬浮液体系zeta电势等的影响,进而考察了不同条件(如矿化度、pH值等)对胜利油田坨四采出水悬浮液稳定性的影响。结果表明:含固体颗粒的体系,油水界面张力、zeta电势增加;固体颗粒浓度增加,水中油含量降低,固含量增加,界面剪切粘度增大,悬浮液稳定性增强。

The effects of solid particle on the quality of Shengli Oilfield produced water were studied by measuring interfacial tension, interracial shear viscosity, zeta potential between oil and water. And oil content and solid content were also measured in different conditions, such as mineralization and pH in the produced water. The results show that the interracial tension and zeta potential increase in the solid system of produced water. With the concentration of solid particle increasing, oil content decreases and solid content increases in the produced water, and the interracial shear viscosity between oil and water increases. The suspension stability increases in the solid system of produced water.