凝析气藏反凝析伤害评价方法及应用

condensation damage was established. Firstly, the retrograde condensate phase evaluation and production dynamic analysis were
used to judge whether the retrograde condensation of gas wells occurred or not. And then, methods such as the gas well
case of the well- 169 of Zanarol condensate gas reservoir in Kazakhstan. The results show that gas condensate has occurred in
Zanarol condensate gas reservoir. Retrograde condensation has great influence on oil productivity, but a little on that of gas. And
河北 廊坊 065007；
3. 西南石油大学石油与天然气工程学院，
四川 成都 610500）
摘要：针对凝析气藏单一的反凝析伤害评价方法可能导致反凝析认识与实际生产发生偏差的问题，建立了凝析气藏反凝
析伤害定性和定量综合评价方法。首先采用反凝析相态评价和生产动态分析判断气井是否发生反凝析，然后综合气井产
能、污染表皮系数、数值模拟和压力恢复试井等多种方法定量评价反凝析伤害程度和半径。以哈萨克斯坦让纳若尔凝析气
藏 169 井为例进行了反凝析伤害定性定量评价。结果显示：
气藏已经发生反凝析，
反凝析对油产能影响大，
对气产能影响小；
伤害程度存在单井差异，
总体上反凝析属于低伤害且低于 16 %；
污染半径在 20 m 左右。气层厚度大和碳酸盐岩储层缝洞发
productivity, pollution skin coefficient, numerical simulation and pressure build- up testing were comprehensively applied to
quantitatively evaluate the degree and radius of the retrograde condensate damage. The established method was carried out in the
第9卷 第6期
油气藏评价与开发
RESERVOIR EVALUATION AND DEVELOPMENT
2019 年 12 月
凝析气藏反凝析伤害评价方法及应用
邹春梅 1，2，汤 勇 3，晏 军 2，孙杰文 2，李俞虹 3，崔轶男 3
（1. 中国地质大学（北京）能源学院，
北京 100083；
2. 中国石油勘探开发研究院廊坊分院，
育是让纳若尔气藏反凝析对气井产能影响较小的重要原因，
提供的方法对矿场凝析气藏反凝析评价具有重要参考意义。
关键词：凝析气藏；
反凝析；
伤害半径；
相态；
让纳若尔
中图分类号：
TE372
文献标识码：A
The evaluation methods and application of retrograde condensation damage in
important reasons for less influence of retrograde condensation damage on gas well productivity in Zanarol. The established method
can be used as a reference for the analysis of complex condensate gas reservoirs.
Institute of Petroleum Exploration and Development, CNPC, Langfang, Hebei 065007, China; 3.Petroleum Engineering School,
Southwest Petroleum University, Chengdu, Sichuan 610500, China）
condensate gas reservoir
ZOU Chunmei1,2, TANG Yong3, YAN Jun2, SUN Jiewen2, LI Yuhong3, CUI Yinan3
（1.School of Energy Resources, China University of Geosciences（Beijing）, Beijing 100083, China; 2.Langfang Branch of Research
the damage degree is different for different gas wells. Generally, retrograde condensation damage was little and its influence rate
Biblioteka Baidu
was less than 16 %. Pollution radius was about 20 m. Thicker gas layer and carbonate reservoirs with developed fracture-vug were
Abstract: For the characteristics of condensate gas reservoirs, evaluation methods on just one side would lead to misjudgment on
retrograde condensation of gas reservoir. Therefore, qualitative and quantitative comprehensive evaluation method of retrograde