气井动态产能预测方法研究  

On Transient IPR Curves of Gas Wells

作　　者：聂锐利[1] 卢德唐[2] 张同义 李洪娟[4] 

机构地区：[1]中国地质大学地球物理与信息技术学院,北京100083 [2]中国科学技术大学,安徽合肥230026 [3]大庆油田测试技术服务分公司,黑龙江大庆166512 [4]大庆油田勘探开发研究院,黑龙江大庆163712

出　　处：《测井技术》2005年第6期517-519,共3页Well Logging Technology

摘　　要：根据不稳定气井试井原理,采用Laplace变换及反变换方法得到了不同生产时间及不同地层压力下的气井流入动态曲线(IPR)。对无限大地层,时间不同,气井的IPR曲线不同;地层压力不同,气井的IPR曲线不同。并进行了矿场实例验证,分析了流入动态曲线的功用,不仅可以得到一定井底流压条件下的气体产量变化关系,同时还可得到一定产量条件下的气井井底压力变化关系。This paper presents a new concept about transient IPR curves of gas wells. Based on unsteady gas partial-differential equation in multi-porosity media, the relationship between wellbore pressure and gas flowrate is obtained under different time. Finally, an example of gas field is used to explain the function of gas transient IPR curves. From the transient IPR curves of gas wells, the relationship between wellbore pressure and time is given when gas flowrate is constant, the relationship between gas flowrate and time is given when wellbore pressure is constant.

关 键 词：试井 流入动态曲线 气井 产能预测 方法研究 

分 类 号：TE237[石油与天然气工程—油气井工程]