渤海稠油冷采井电潜泵精细化设计方法及延寿对策研究  

Research on Refined Design Method and Life Extension Countermeasures of ESP for Heavy Oil Cold Recovery Well in Bohai

作　　者：于法浩 喻小刚 黄荣贵 侯新旭 曾润 YU Fahao;YU Xiaogang;HUANG Ranggui;HOU Xinxu;ZENG Run(Tianjin Branch,CNOOC China Limited,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《广东石油化工学院学报》2023年第3期41-45,共5页Journal of Guangdong University of Petrochemical Technology

摘　　要：渤海油田稠油冷采井通常采用电潜泵举升,但目前电潜泵选泵设计以及现场运维未精细考虑稠油井黏度的动态变化,出现了故障率高、效率低等问题。针对该问题,依托典型井特征,通过模拟计算,建立了387型电潜泵适用黏度图版,得出电潜泵极限工作黏度及适用乳化含水区间,并提出了稠油冷采井生产前、中、后期的电潜泵精细化设计方法。为保障电泵运行寿命,提出了掺水降低时机、经济掺水量、停井后再启泵频率、热洗井时机等运维手段。Electric submersible pumps is often used for lifting in heavy oil cold production wells in Bohai Oilfield However,the current design and on-site operation and maintenance of electric submersible pumps do not carefully take the dynamic changes in viscosity of heavy oil wells into consideration,resulting in high failure rates and low efficiency.In response to this problem,based on typical well characteristics and through simulation calculations,a suitable viscosity chart for the 387 electric submersible pump has been established.The limiting working viscosity and applicable emulsified water cut interval of the electric submersible pump have been obtained,and a refined design method for the electric submersible pump before,during,and after the production of heavy oil cold production wells has been proposed.To ensure the operating life of the electric pump,operation and maintenance measures such as reducing the timing of water mixing,economic water mixing,frequency of restarting the pump after stopping the well,and timing of hot flushing have been proposed.

关 键 词：电潜泵 稠油冷采 选泵设计 延寿对策 

分 类 号：TE345[石油与天然气工程—油气田开发工程]