...Flow state parameters, in particular, critical pressure ratio, are essential in design and calculation of gas well downhole chokes, determining flow state in the choke and in guarantee of steady production of a gas well.临界状态参数,尤其是临界压力比,这是天然气井下节流嘴设计计算以及判断节流嘴内是否达到临界流动,能否实现气井稳产的关键数据。
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