石油钻采工艺2017，Vol.39Issue(5)：604-610,7.DOI:10.13639/j.odpt.2017.05.014
双电潜泵抽油耦合模型及参数优化
Research on coupled model and parameter optimization of dual-ESP pumping system
摘要
Abstract
In this paper, dual-ESP coupled lifting technology was developed to break through the upper limit of single-ESP lifting capacity so as to satisfy the requirements of deep well exploitation and make full use of the potential capacity of oil and gas wells suffi-ciently. By virtue of this technology, the dual-ESP lifting capacity is applied sufficiently based on the coordination of double electric sub-mersible pumps. Then, a mathematical model for the coupling relationship of dual-ESP oil pumping was established after the kinematics, kinetic characteristics and coupling relationships of oil reservoir inflow performance, borehole multiphase flow and lifting technology were investigated. By means of nodal analysis method, the dual-ESP operation parameters for the supply-discharge coordination of oil wells were solved with the maximization of system efficiency and production rate as the target. And accordingly, the parameter design software for dual-ESP coupled lifting technology was prepared. And finally, a case calculation was conducted to compare the dual-ESP relay lifting system and the single-ESP pumping system from aspects of pump stage amount, pump power, system efficiency and maxi-mum liquid production rate. It is indicated that dual-ESP lifting decreases the single-ESP lifting pressure, and consequently decreases the pump stage amount and the pump power and improve the system efficiency. And it can make full use of the lifting capacity of two electric pumps to increase the production rate of oil wells and exert the potential capacity of oil wells sufficiently. It is theoretically significant to the dual-ESP type selection and design for the exploitation of deep wells.关键词
双电潜泵组合举升/耦合系统/选泵设计/敏感性分析/工况指标Key words
dual-ESP coupled lifting/coupling system/pump selecting design/sensitivity analysis/behavior index分类
能源科技引用本文复制引用
程心平,檀朝东,阚唱轩,郑春峰,谢双喜..双电潜泵抽油耦合模型及参数优化[J].石油钻采工艺,2017,39(5):604-610,7.基金项目
中国海洋石油总公司科技发展项目"电泵与气举智能耦合举升工艺技术研究"(编号:KJ 135 -2016-02). （编号:KJ 135 -2016-02）
