柱塞气举特性分析  

The Characteristics Analyses of plunger Gas Lifting

作　　者：汪崎生[1] 廖锐全[1] 

机构地区：[1]江汉石油学院石油工程系,湖北荆州434102

出　　处：《江汉石油学院学报》2000年第3期61-64,共4页Journal of Jianghan Petroleum Institute

摘　　要：利用柱塞液段运动微分方程 ,用数值求解的途径分析考察了注入气压力、油管井口压力、油井产液指数和含水率对柱塞气举的产量、循环周期和注入气量的影响。实际计算结果表明 ,注气压力增大 ,对日产液量和注气量影响很小 ,不能改善气举采油效率 ;井口压力增大 ,将导致日产液量下降 ,日注气量增加 ;而产液指数和含水率增大 ,将导致产液量和注气量相应增加。By applying differential equations for liquid slug motion to gas lifting, the effects of gas injection pressure, wellhead pressure, fluid producing index and water cut on the production rate by plunger gas lifting ,injection cycle and rate are investigated numerically The actual computation conducted shows that the increase in gas injection pressure would hardly affect the daily fluid production rate and daily gas injection rate, and could not improve the production efficiency of gas lifting When wellhead pressure raises, daily fluid production rate decreases and daily gas injection rate increases When the fluid production index and water cut raise, the rates of fluid production and gas injection increase accordingly

关 键 词：气举采油 气举柱塞 特性分析 气举设计 采油技术 

分 类 号：TE355.3[石油与天然气工程—油气田开发工程]