公开(公告)号：US20140154101A1

公开(公告)日：2014-06-05

申请号：US13886880

申请日：2013-05-03

Applicant: BAKER HUGHES INCORPORATED

Inventor： David Peter Gerrard ,  John Jay Mack ,  John L. Bearden ,  Bennett M. Richard

IPC: F04B17/03

CPC classification number: F04B17/03 ,  E21B43/128

Abstract: A seal assembly for an electrical submersible pumping system that communicates downhole pressure to a pump motor and seals wellbore fluids from the motor. The seal assembly includes a chamber circumscribing a pump shaft and a bladder in the chamber. The outer surface of the bladder is in fluid communication with the wellbore fluid. The inside of the bladder contains dielectric fluid that is ported to the pump motor in an annulus between the pump shaft and a sleeve. A water absorbing elastomer is disposed inside of the bladder for absorbing water that may migrate into the bladder from the wellbore.

Abstract translation: 一种用于电潜泵系统的密封组件，其将井下压力与泵马达相通，并将井筒流体与马达密封。 密封组件包括围绕腔室中的泵轴和气囊的腔室。 气囊的外表面与井筒流体流体连通。 气囊的内部包含介质流体，该介质流体在泵轴和套筒之间的环形空间中被泵送到泵马达。 吸水弹性体设置在气囊内部，用于吸收可能从井眼迁移到膀胱中的水。