或电容、微波传感器),测量相似流体性质变化的特征与频率,根据两个传感器对同一参照物测量的时滞,以及传感器之间的距离,通过相关函数计算流体的速度。Р6Р海默多相流计性能及结构? ——海默MFM2000型РGas Fraction (ag):?气相所占截面比?Gas Volume Fraction (GVF):?气相所占总体积比(工况条件下)?Water Liquid Ratio (WLR):?水相所占液相比(工况条件下)?WLR & BS&W 区别:?WLR:工况,BS&W:标况Р8Р海默多相流计性能及结构? ——海默MFM2000型РGROSS MULTIPHASE FLOWРFlow rates @ Line Conditions ?Q oil?Q water?Q gasРFlow ConditionerРDual-Gamma RayРRAРWLRР典型液相РPVT DataРFlow rates @ Standard Conditions ?Q oil?Q water?Q gasРTTРPTРPressure & Temperature MeasurementsРPVT CalculationsРSingle-Gamma RayРRAРαgРVenturiРDPР9Р海默多相流计性能及结构? ——海默MFM2000型РWLRРr = (1-ag)[ro+WLR(rw-ro)]+ ag.rgРFlow ?ConditionerРDUALРDPРTTРInletРOutletРPTРDPРDPРQmass totalРQ oil = ( 1-GVF ).( 1-WLR ) . Q total?Q water = ( 1-GVF ).WLR . Q total?Q gas = GVF . Q totalРagРSINGLEР3’’ Venturi MeterРRAРRAР10
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