油水两相管流测量方法应用进展

Application Progress of Measurement Method for Oil-Water Two-Phase Pipe Flow

随着科学技术的发展,大量基于电学及光学基础的测量设备逐渐被学者们用于定量描述油水两相流动规律的研究中。通过简述国内外关于油水两相管流实验中所采用的测量方法及测量原理,总结电导探针、聚焦光束反射测量仪、光学测量设备及伽玛相分率仪在油水两相管流动中的应用进展,并在其基础上分析了各种测量方法的局限性。根据管流油水流动研究现状,提出油水两相管流研究应从两相流场信息测量及油水界面捕捉入手,通过实验确定影响油水两相相间作用的决定性因素,建立新的流型转化机理,明确局部及完全分散对有效黏度变化的影响趋势,并结合现有两相流动规律,改进及完善了现有压降计算模型。

With the development of technology and science,a large number of measurement equipment based on the optics and electricity are used to study quantitatively describe the law of oil-water two-phase flow.Through a brief introduction of the measuring methods and principles of oil-water two-phase pipe flow in China and abroad,the application progress of conductance probe,focused beam reflection meter,optical measuring equipment and gamma phase divider in oil-water two-phase pipe flow is summarized emphatically.On the basis of it,the limitation of each measurement method is analyzed.According to the current research situation of oil-water pipe flow,it is proposed that the study of oil-water two-phase pipe flow should start with the measurement of two-phase flow field and the capture of oil-water interface.Through the experiment,the decisive factors influencing the interaction of oil-water two-phase flow are determined,and a new flow pattern of transformation mechanism for flow pattern is established.The partial and complete dispersion effect trend on the effective viscosity change is found out,and the existing pressure drop calculation model is improved combined with the existing law of two-phase flow.