凝析气藏两相拟稳态模拟方法  

Two-phase and pseudosteady simulation of condensate gas reservoir

作　　者：朱得利[1] 王薇寒[1] 朱豫川[1] 

机构地区：[1]西南石油大学,四川成都610500

出　　处：《断块油气田》2009年第3期62-64,共3页Fault-Block Oil & Gas Field

摘　　要：长期以来,凝析气藏合理、高效的开发一直是困扰业界与学术界的难题。由于传统模型对地层油气相态估计不足,造成了对凝析气藏气井产能分析与计算的误差,影响其合理经济的开发。凝析气藏油气两相拟稳态模拟方法能够真实地反映凝析气藏开发过程中的流体渗流状态,针对地层流体的相态变化,优化地层拟压力的计算方法,从而准确反映出凝析油的分布和饱和程度对气井产能的影响。通过凝析气藏实例,将此方法与"一点法"经验公式和无限导流径向模型进行对比,可以看出此模型更加适合于凝析气藏气井产能分析。The high-efficiency and profitable exploitation of condensate gas reservoir has always been a long standing problem, which puzzles both petroleum industry and relative scientific researches for a long time. Due to the nondeteiminaey of fluid property change and retrograde condensate pollution caused during exploiting process, the errors between the analysis and evaluation for condensate gas well deliverability are run out. The economic benefits of project are greatly influenced. The two-phase and pseudosteady simulation method can really reflect the fluid percolation characteristics and phase behavior change in the development process of condensate gas reservoir. This paper optimizes the calculation method of formation pseudopressure, displaying the influence degree on the well deliverability of condensate gas well. Practical application confirms that this model is suitable for the deliverability analysis of condensate gas well compared with the empirical formula of one point method and the model of infinite radial flow conductivity.

关 键 词：凝析气藏 产能分析 相态 凝析油 

分 类 号：TE319[石油与天然气工程—油气田开发工程]