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井口油嘴用于监测和控制油井产量.并保护油层不受地面压力波动的影响,高压气、水系统实验表明;在分析多孔口油嘴实验数据时不能使用一般关系式。为预测亚临界流动和临界流动间的变换,用两相均匀混合物声速建立了一种新的关系式。
The wellhead nozzle is used to monitor and control well production and protect the reservoir from the pressure fluctuations on the ground. Experiments on high-pressure gas and water systems show that the general relation can not be used when analyzing the experimental data of the multi-orifice nozzle. To predict the transition between subcritical and critical flows, a new relationship is established using the sound velocity of the two-phase homogeneous mixture.