The sensitivity analysis indicates that the parameters impacting the production results from high to low are production time, steam dryness, cyclic steam injection volume, steam injection pressure.

敏感性分析表明，蒸汽参数对开发效果影响的顺序从大到小依次为生产时间、注汽干度、周期注汽量、注汽压力、焖井时间和注汽速度；

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The online measurement of the steam quality is a difficult problem of world in petroleum industry, because of high temperature and high pressure of steam and narrow space of steam injection well.

注汽过程中高温高压和狭小的空间，使得干度在线测量成为石油开采行业中的世界性难题。

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Pressure transient test in steam injection well is an inexpensive and effective means to determine swept volume and flowing condition of the steam zone.

注蒸汽井压力降落试并是确定蒸汽波及体积和了解波及区流动情况的一种经济、有效的方法。

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