ABSTRAKT

The study puts forward a forced way to realize phase isolation by using a static cyclone device and provides a basis for a systematic study of the phase-isolation phenomenon for an oil−water two-phase flow in a vertical upward pipe. An optimized style of the static cyclone device was chosen to simulate the phase-isolation characteristics that are influenced by various flow parameters (density, viscosity, velocity, oil diameter, etc.). It is observed that the phase-isolation characteristics are well approaching the ideal condition with the oil superficial velocity below 0.20 m/s and water superficial velocity between 0.25 and 0.8 m/s. The experimental results, which agree well with the simulation, also show that the static cyclone device can successfully be used to realize phase isolation. The phase-isolation method may provide an innovative approach to the measurement of phase holdup, the process of water reinjection, and the heat and mass transfer rates of a multiphase flow.