公开(公告)号：US20140241910A1

公开(公告)日：2014-08-28

申请号：US14191731

申请日：2014-02-27

申请人： GOLDEN CROSS FOUNDATION LIMITED

发明人： Lindsay K. Campbell

IPC分类号： F04B25/04 ,  F04B47/00 ,  F04B39/10

CPC分类号： F04B47/00 ,  F04B25/00 ,  F04B47/06 ,  F04B47/08

摘要： A submersible pump includes a fluid-end section, a power-end section, a top connection sub and an umbilical. The fluid-end section includes a tubular fluid-end barrel, an upper piston disposed within the fluid-end barrel bore, and a traveling valve disposed at the upper piston upper end. The power-end section includes a tubular hydraulic cylinder. A lower piston disposed within the hydraulic cylinder bore is connected to the upper piston. The top connection sub connected to the fluid-end barrel upper end has a discharge port and a standing valve disposed below the discharge port. The umbilical includes first and second tubing strings providing fluid communications between a prime mover and the hydraulic cylinder bore below and above the lower piston face, respectively. A third tubing string provides fluid communications between a wellhead and the top connection sub discharge port.

摘要翻译： 潜水泵包括流体端部分，动力端部分，顶部连接部分和脐带部分。 流体端部分包括管状流体端桶，设置在流体端桶形孔内的上活塞和设置在上活塞上端的行进阀。 动力端部分包括一个管状液压缸。 设置在液压缸内的下活塞连接到上活塞。 连接到流体端筒上端的顶部连接部分具有设置在排出口下方的排出口和立式阀。 脐带包括第一和第二管柱，分别提供原动机和下活塞面下方和上方的液压缸孔之间的流体连通。 第三管柱提供井口与顶部连接副排放口之间的流体连通。