Moreover, the wellbore flow equation, formation deliverability equation and solution method are established; the imposing wellhead back pressure may increase a theoretical mechanism of well control; and a wellcontrol effect on UBD is obtained based on case study.
建立了井筒流动方程和地层产能方程以及求解方法,阐述了施加井口回压可以提高欠平衡钻气井井控效果的理论机理,并通过案例分析得出施加井口回压对欠平衡钻气井的井控效果。
参考来源 - 欠平衡钻气井井口回压控制理论及实践·2,447,543篇论文数据，部分数据来源于NoteExpress
本文列举涂布工艺的实例，给出基本流动方程。
Examples of coating methods are listed and the basic flow equations are derived.
一个是关于压力的流动方程，另一个是关于含盐浓度的对流方程。
One is fluid equation for the pressure, the other convection-dispersion equation for the saltwater concentration.
在建立机头内熔体流动方程的基础上，进行了数值整体模拟算法分析。
On the basis of the set up the flow expression of the melt in die, the expression is analyzed with the whole numerical simulation algorithm.
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