油・水・ガス―三相流における粘性効果と多相流量計への適用

抄録

Each flow rate of liquid-gas two-phase flows can be iteratively evaluated by measuring the pressure drop across an inline homogenizer for mixing the fluids and the rotation speed of a turbine rotor behind the homogenizer. JOGMEC has extended this idea to measure the oil, gas, and “water” flow rates simultaneously, and proposed a Multiphase Flow Meter (MPFM), which is composed of the homogenizer and a turbine meter with an inner assembly of twin rotors connected by a spring. However, the resultant volumetric flow ratio of water phase has a defect in accuracy. To improve the accuracy, the mechanisms of single-phase flow, gas-liquid two-phase flow, liquid-liquid two-phase flow and liquid-liquid-gas three-phase flow are investigated theoretically and experimentally. The results suggest that the proposed constructive formula may improve the accuracy of the measurements.