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牙哈凝析气田是我国最大的、首次采用高压循环注气方式开发的凝析气田.介绍了该凝析气田的地质特征、流体相态特征,建立了气藏流体单井产出注入方程,对气田的开发方式、布井方式进行了优化;通过方案实施跟踪研究,对方案进行了合理调整,研究制定了凝析气藏循环注气的射孔原则及射孔方案,对循环注气开发指标进行了预测,形成凝析气藏循环注气配套技术.目前,牙哈凝析气田实施循环注气已有两年时间,年产凝析油在50×104t以上,实现了凝析气田的高效开发.牙哈凝析气田循环注气开发的实施对今后我国其他凝析气田的开发具有重要的理论和实际指导意义.
The Yaha condensate gas field is the largest condensate gas field developed in China by the high-pressure cycle gas injection method for the first time.The geologic characteristics and fluid phase characteristics of this condensate gas field are introduced, and the injection equation of fluid single well output is established, The gas field development method and well pattern are optimized. Through the program implementation tracking research, the scheme is adjusted reasonably, and the perforation principle and perforation scheme of gas injection in condensate gas reservoir are researched and developed. Indicators have been predicted to form gas condensate gas injection cycle supporting technology.At present, the implementation of Yaha condensate gas field gas injection cycle has been two years, with an annual output of condensate in 50 × 104t or more, to achieve the condensate gas field Efficient development.The implementation of circular gas injection in the Yaha condensate gas field has important theoretical and practical significance for the future development of other condensate gas fields in China.