Title:
MODULAR BELLOWS WITH INSTRUMENTATION UMBILICAL CONDUIT FOR ELECTRICAL SUBMERSIBLE PUMP SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/140238
Kind Code:
A3
Abstract:
An electrical submersible pumping (ESP) system for use in a wellbore having a pressure equalization system that employs modules with a bellows. The bellows axially expands and contracts in response to pressure fluctuations encountered in the wellbore. The modules are attachable in series on a lower end of a motor of the ESP to form the string, where the string can range from a single module to a multiplicity of modules, depending on the application. The bellows has a conduit axially inserted through the bellows that includes an umbilical and has an end in pressure communication with the motor.
Inventors:
TETZLAFF STEVEN K (US)
Application Number:
PCT/US2011/035219
Publication Date:
December 22, 2011
Filing Date:
May 04, 2011
Export Citation:
Assignee:
BAKER HUGHES INC (US)
TETZLAFF STEVEN K (US)
TETZLAFF STEVEN K (US)
International Classes:
E21B43/00; E21B21/08; E21B43/12
Domestic Patent References:
| WO1996019590A1 | 1996-06-27 |
Foreign References:
| US20030132003A1 | 2003-07-17 | |||
| US20020192090A1 | 2002-12-19 | |||
| US4492523A | 1985-01-08 |
Download PDF: