凝析气藏循环注气气窜判别方法及应用

Natural Gas Exploration and Development(2008)

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Abstract
在凝析气藏循环注气驱替过程中,受储集层非均质性影响,注入干气易于流过高渗透带或天然裂缝而过早发生气窜。文章简要介绍了凝析气井气窜的4种判别方法,通过分析牙哈2-3凝析气藏循环注气开发的现场资料,结合数值模拟方法,阐述了注入气突破至采气井后,采气井产出流体组分及相态的变化规律,并研究了气窜发生后凝析气井产能的变化特征,总结了凝析气井气窜后的治理措施及效果评价。
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Key words
gas channeling,discriminant method,condensate gas reservoir,cyclic gas injection
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