There is a consensus in the oil industry that multiphase flow meters (MFMs) can bring various benefits to the oil industry. MFMs would reduce the minimum space and weight requirements of the platforms as they would eliminate the separating tanks and the interconnection pipes. One of the important variables to MFMs is the dispersed-phase velocity that is a closure relationship to mechanistic models. In this context, this paper studied the use of the ultrasonic cross-correlation technique based on the energies of the reflected pulses to estimate the dispersed-phase velocities for the dispersed-bubbles and the slug flow patterns. The experiments were done in a vertical two-phase liquid-gas flow pipe, with superficial liquid and gas velocities ranging from $\text{0.5}$ to $\text{3.9}\text{m/s}$ and $\text{0.1}$ to $\text{3.7}\text{m/s}$, respectively. Also, the results were compared with image analysis and mechanistic models. For dispersed-bubbles flows, the relative deviation from the mixture velocities was less than 20%. For slug flows, the relative deviations from the images were less than 15%.

石油行业已经达成共识，多相流量计（MFM）可以为石油行业带来各种好处。MFM将减少平台的最小空间和重量要求，因为它们将消除分离罐和互连管。MFM的重要变量之一是分散相速度，它是与机械模型的闭合关系。在这种情况下，研究了基于反射脉冲的能量超声波互相关技术来估计分散相速度为分散气泡和蛞蝓流动模式。实验是在垂直的两相液流管道中进行的，表层液体和气体的速度为$\text{0.5}$ 至 $\text{3.9}\text{小姐}$ 和 $\text{0.1}$ 至 $\text{3.7}\text{小姐}$， 分别。此外，将结果与图像分析和机械模型进行了比较。对于分散的气泡流，与混合速度的相对偏差小于20％。对于团状流动，从图像中的相对偏差小于15％。