柱塞举升优化设计及敏感性分析  

Optimum Design and Sensitivity Analysis for Plunger Lift

作　　者：冯国强[1] 隋义勇[1] 冯国勇[2] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东东营257061 [2]胜利油田有限公司胜利采油厂,山东东营257051

出　　处：《石油钻探技术》2007年第5期104-107,共4页Petroleum Drilling Techniques

摘　　要：基于系统节点分析,建立了柱塞举升优化设计方法。利用该方法分析了柱塞举升主要生产指标(套压、产液量、日循环次数)以及柱塞运动状态的影响因素:生产气液比对柱塞上行运动速度和地面初始套压的影响,举升深度对地面初始套压及柱塞到达井口速度的影响,周期举液量对地面初始套压的影响,分离器压力对地面初始套压的影响以及油管尺寸对地面初始套压的影响。分析了地面初始套压与日循环次数的关系,每循环所需气量与日循环次数的关系以及日产量与日循环次数的关系;确立了柱塞举升优化设计的主要影响因素,为提高柱塞举升工艺设计的准确性和可靠性,提供了分析手段和参考依据。The method of plunger lift optimum design was built based on nodal analysis. This method analyzed the impact of the main production index （casing pressure, liquid producing capacity, diurnal cycle frequency） and plunger movement parameters, including the impact of production gas-liquid ratio on plunger upstroke velocity and surface initial casing pressure, the impact of raising depth on surface initial casing pressure and plunger velocity at well head, the impact of separator pressure on surface initial casing pressure, and the impact of tubing size on surface initial casing pressure. The relation between surface initial casing pressure and frequency of diurnal cycle, therelation between required gas volume and number of frequency of diurnal cycle, the relation between daily production rate and number of frequency of diurnal cycle, were analyzed. The main factors impacting plunger lift optimization design are identified, which pro- vides the analysis and reference basis to improve the accuracy and reliability of the plunger lift design.

关 键 词：气举采油 气举柱塞 节点分析 优化设计 

分 类 号：TE355.3[石油与天然气工程—油气田开发工程]