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在石油、化学工业中，经常会遇到油水两种互不相溶的液体共同流动的情况。由于油水乳状液的广泛存在，以及采出液含水率的不断提高，导致油气集输过程中输液量的大幅度增加，给油气集输工艺和设备带来了新的困难。文中对垂直上升管内油包水型（Ｗ／Ｏ）和水包油型（Ｏ／Ｗ）油水乳状液的流动特性进行了实验研究。实验参数范围：含水率εｗ＝０．０～１．０；压力ｐ＝０．１～０．６ＭＰａ；流量Ｑ＝０．１４～１．７ｋｇ／ｓ；温度Ｔ＝１０～４５℃。实验结果分析得出了一个新的油水乳状液表观粘度的表达式，此表达式优于文献中别的预测模型，其计算值和实验结果吻合良好；同时得出一个新的油水乳状液发生相转变的判别式，分析了在相转变点附近油水乳状液在垂直上升管内的流动状态以及发生相转变和流量、含水率的关系；提出了采用Ｒｅ和摩擦阻力系数的关联式计算摩擦阻力的方法，得到判别油水乳状液为牛顿流体和非牛顿流体的方法。该研究结果对管道输送系统的设计有一定的参考价值。
In the oil and chemical industry, it is common to encounter the common flow of oil and water, which are incompatible liquids. Due to the extensive existence of oil-water emulsion and the continuous increase of moisture content in produced fluid, the amount of liquid transfused during the process of accumulating and accumulating oil and gas greatly increases, which brings new difficulties to the oil and gas gathering process and equipment. In this paper, the flow characteristics of water-in-oil (W / O) and oil-in-water (O / W) emulsions in vertical risers were investigated experimentally. Experimental parameters range: water content εw = 0.0 ~ 1.0; pressure p = 0.1 ~ 0.6MPa; flow Q = 0.14 ~ 1.7kg / s; temperature T = 10 ~ 45 ℃. The experimental results show that a new expression of apparent viscosity of oil-water emulsion is obtained, which is superior to other prediction models in the literature. The calculated values are in good agreement with the experimental results. A new oil-water emulsion Phase transition and the relationship between phase transition and flow rate and water content in the vertical riser near the phase transition point were analyzed. The friction coefficient was calculated by using the correlation formula of Re and friction coefficient Method, to determine the oil-water emulsion Newtonian fluid and non-Newtonian fluid method. The results of this study have certain reference value for the design of pipeline transportation system.