大张坨凝析气藏循环注气的动态监测

对于循环注气开发的凝析气藏，全过程动态监测工作十分重要，但目前国内还没有可借鉴的方法。以大张坨凝析气藏为例，建立了一套适合于凝析气藏循环注气开发的动态监测体系和监测结果的分析方法。监测对象包括开发过程中的地层压力、示踪剂运移规律和井流物组分变化。监测数据和分析结果为大张坨凝析气藏合理开发及动态调整提供了依据，从而达到提高采收率之目的。

Dynamic Monitor of Cyclic Gas Injection in Da Zhangtuo Condensate Gas Reservoir

To the condensate reservoir which is developed by cyclic gas injection,dynamic monitor is very important in the whole process.But there is not a method for reference up to now in domestic.Making example of Da Zhangtuo condensate gas reservoir,the paper establishes a set of methods of dynamic monitor system and analysis of monitor result which suit for the cyclic gas injection of condensate gas reservoir.Monitor targets include the formation pressure in the period of development,migration law of tracer and the change of fluid compound.Monitor data and analysis results provide a base for reasonable development and dynamic adjustment of Da Zhangtuo reservoir,thus getting the purpose of increasing recovery efficiency.