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首页> 外文期刊>Colloids and Surfaces, A. Physicochemical and Engineering Aspects >Effects of Na-montmorillonite particles on the emulsification stability of polymer flooding produced water
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Effects of Na-montmorillonite particles on the emulsification stability of polymer flooding produced water

机译：钠蒙脱土颗粒对聚合物驱采水乳化稳定性的影响

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Simulation experiments were conducted to investigate the effects of Na-montmorillonite (Na-Mt) on the emulsion stability of polymer flooding water. To study the stabilization mechanisms of Na-Mt particles in the emulsion system, the oil/water interfacial properties were investigated by measuring the zeta potential, interfacial tension and dilational viscoelasticity. The features of Na-Mt particles adsorbed on oil droplets were observed under optical microscopy. The results indicated that, with the increase of Na-Mt particles up to 200. mg/L, the zeta potential became more negative, the interfacial tension decreased greatly, dilational viscoelasticity was enhanced and a stable oil-mineral aggregate (OMA) structure appeared, therefore, the polymer flooding produced water was stabilized. With further increases of Na-Mt particle concentrations, the zeta potential of oil droplets remained stable, the interfacial tension slightly increased, and the dilational viscoelasticity decreased. In this system, a larger OMA structure was apt to form, which could favor the treatment of polymer flooding produced water.
机译：进行模拟实验以研究钠蒙脱石（Na-Mt）对聚合物驱水乳液稳定性的影响。为了研究乳液体系中Na-Mt颗粒的稳定机理，通过测量Zeta电位，界面张力和膨胀粘弹性来研究油/水界面特性。在光学显微镜下观察到Na-Mt颗粒吸附在油滴上的特征。结果表明，随着Na-Mt颗粒增加至200. mg / L，zeta电位变得更负，界面张力大大降低，扩张粘弹性增强，并出现了稳定的油矿骨料（OMA）结构因此，聚合物驱采出水稳定。随着Na-Mt颗粒浓度的进一步增加，油滴的zeta电位保持稳定，界面张力略有增加，而膨胀粘弹性降低。在该系统中，易于形成较大的OMA结构，这可能有助于处理聚合物驱采出水。

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