海上直线潜油电泵的开发及在渤海油田的应用

随着中海油部分油田的开采进入中后期，一部分低液量井由于没有合适的人工举升方式而面临开采难题。为解决该类井开采问题，针对海上油田低产井井斜大、出砂、功率大等特点设计开发了带有平衡缓冲器、刮砂装置、带轨道弹簧复位双固定凡尔的适合海上油田的直线潜油电泵。所开发的直线潜油电泵包括直线电机、往复泵、电缆及直线电机专用变频柜，承载能力达到60 kN。通过在渤海油田应用表明，所开发的海上直线潜油电泵适合海上油田低产井的开采，成功解决了低产液井的开采问题。

Development of Offshore Submersible Electric Pump and Application in Bohai Oilfield

some low-liquid wells are facing difficulties in production due to the lack of suitable lifting methods. In order to solve the exploitation problems of this kind of wells, a linear submersible electric pump with balance buffer, sand scraping device and track spring reset double fixed globe valve is designed and developed for offshore oilfields, aiming at the low production wells which are of high deviation, sand production and high power. The developed linear motor reciprocating pump consists of linear motor, reciprocating pump, cable and special frequency converter cabinet for linear motor, and its lift force capacity reaches 60 kN. The application in Bohai oilfield shows that the developed offshore linear submersible electric pump is suitable for the exploitation of low production wells in offshore oilfields and successfully solves the exploitation problem of low production liquid wells.