Based on the model to calculate mixture loss, a new calculation model of pressure drop for stratified flow in horizontal wellbore has been developed by applying the momentum conservation equation.
在混合损失计算模型的基础上，应用动量守恒原理推导出了新的水平井筒气液两相分层流型压降计算模型。
The critical production pressure drop and critical output during sanding in oil Wells were gained by the calculation with the channel sanding prediction model.
通过孔道出砂预测模型的计算，得到了油井出砂时的临界生产压差和临界产量。
The critical production pressure drop and critical output during sanding in oil Wells were gained by the calculation with the channel sanding prediction model.
通过孔道出砂预测模型的计算，得到了油井出砂时的临界生产压差和临界产量。
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