川西坳陷致密碎屑岩钻井故障及对策 关键词 压降 预测 非均质 渗透率 [gap=1207]Keywords] pressure drawdown；prediction；heterogeneity；permeability
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... pressure distribution 压力分布 pressure drawdown 压力下降 pressure fluctuation 压力波动 ...
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bottom-hole pressure drawdown 井底压降
long-term pressure drawdown test 长时间压降试井
pressure drawdown testing 压降试井
term pressure drawdown test 长时间压降试井
pressure drawdown curve 压力降落曲线
As the foam quality increases, the gravity pressure drawdown diminishes the variation trend of the gravity pressure drawdown diminished.3.
泡沫质量越大,泡沫的重位压降就越小,重位压降的变化趋势减小。
参考来源 - 二氧化碳泡沫压裂理论及工艺技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
At the end of this paper, model sketches, pressure drawdown solutions, theoretical curves and practical example analysis are presented for comparing.
文中附有模型简图对比，压降解对比，理论曲线对比，及实例分析对比。
Then a differential model, which discribes the changes of sandface flow rate under pressure drawdown and buildup is derived. The rate model is used to solve the question …
通过非结构网络，把井眼看作一个网格块，推导出了能反映开、关井后地层渗流量变化的用于求解单相流试井问题的差分模型。
The existent pressure drawdown analysis technologies were only suitable for low permeability and isotropy reservoirs, not for interpreting fracture parameters of fractured reservoirs.
现有的压降分析解释技术只适合于低渗透均质油藏，而不能解释裂缝性储层的压裂裂缝参数。
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