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Determination of reasonable pressure difference for condensate gas reservoir
Author(s): 
Pages: 85-88
Year: Issue:  2
Journal: ACTA PETROLEI SINICA

Keyword:  凝析气藏非平衡相变生产压差产能;
Abstract: 鉴于反凝析油在近井地带的聚集引起产能损失的问题,在制定凝析气井工作制度时,通常以控制生产压差为主,往往忽略高速流动下凝析气液相变的非平衡特征与毛管数效应.为此,分析了凝析气非平衡相变与向井流规律,评价了凝析气在流动过程中的非平衡相变特征和毛管数效应,阐述了凝析液聚集的变化规律.结果表明,流体在高速流动条件下,增强高速流动效应有利于提高凝析气井产能.在对产能预测结果对比的基础上,提出了以凝析液饱和度分布控制为主的凝析气藏合理生产压差确定方法.
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