水驱气藏单井动态优化配产方法研究

Study on single well performance optimization allocation method in water-flooding gas reservoir

张建民 张国明 王怒涛 罗成栋

Zhang Jianmin Zhang Guoming Wang Nutao Luo Chengdong

中海油 天津分公司 技术部, 天津 300452; 西南石油大学 石油工程学院, 四川 成都 610500; 中海油采油技术服务公司, 天津 300452

The Technical Department Tianjin Subcompany of CNOOC, Tianjin 300452, China; The Petroleum Engineering Department of Southwest Petroleum University, Chengdu 610500, China; The Oil Production Technque Service Company of CNOOC, Tianjin 300452, China

针对国内外气井(藏)配产和设计中存在的工程问题,引入生产时间的概念,建立了水驱气井(藏)的动态优化配产模型。该模型改变了传统意义上用绝对无阻流量配产计算过程,对生产数据的依赖性小,可以减少因为人为因素造成的配产不当和设计失误。特别是具有天然水侵的气藏,如果产量配置不合理,造成井底积液,严重影响气井产量,因此对水驱气藏动态优化配产具有更重要意义。

In view of the problems that exist in gas reservoir/well production allocation and design, we introduce the conception of production time, then the dynamic optimization allocation model of water drive gas well is established. The calculating process of traditional static allocation production is improved by use of the model. The method is slightly dependent on production data, which may decrease the man-made errors both in allocation production and design. Especially for natural water influx gas reservoir, if the production allocation is not rational, it will lead to the water accumulation on the bottom of the hole. Therefore the dynamic optimization allocation possess is important in gas reservoir development.