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对通过井口油嘴临界及亚临界两相流动的几个关系式进行评价。用以检测它们对中东油田的运用性。检测了所描述的通过进口嘴的两相流动的两组关系式。第一组是类似于Gilberl提出的简单经验公式，它包括两个新关系式：一个用于临界流态，另一个用于亚临界流态。第二组由包含PVT参数的两相流幼导出公式构成。该PVT关系式在中东原油的开发中得到进一步发展。这些关系式应用几个中东国家的油田资料进行检测。最佳关系式的选择是通过统计误差分析、有效范围及油田中检测变量的个数来证明的。这些关系式的简单型式可以比任何其它涉及相同变量的关系式提供更加准确的结果。结合中东油田产出流体参数的PVT关系武。提高了导出模型的准确性、这些发展的关系式对于中东油井油嘴动态的准确预测是有用的。提出的经验关系式适用于各种类型的油藏流体，包括黑油、挥发油及凝析液。这些关系式不需要掌握产出流体的PVT参数。
Several relationships between the critical and subcritical two-phase flows through the well head lip are evaluated. To test their use of the Middle East oil field. The two sets of relationships described for the two-phase flow through the inlet nozzle were examined. The first group is a simple empirical formula similar to that proposed by Gilberl and includes two new relationships: one for the critical flow and the other for the subcritical flow. The second group consists of two-phase flow derived PVT parameters formula. The PVT relationship has been further developed in the Middle East crude oil development. These relationships apply oilfield data from several Middle Eastern countries for testing. The choice of the best relationship is demonstrated by statistical error analysis, the valid range, and the number of variables tested in the field. The simple pattern of these relationships can provide more accurate results than any other relation involving the same variables. PVT Relationships with Output Fluid Parameters in the Middle East Oilfield. Improve the accuracy of the derived model, the relationship between these developments is useful for accurate prediction of the dynamic behavior of the Middle East oil well nozzle. The empirical relationship proposed applies to all types of reservoir fluids, including black oil, volatile oil and condensate. These relationships do not need to know the PVT parameters of the output fluid.