Invention Grant
- Patent Title: Electrical submersible pump with equally loaded thrust bearings and method of pumping subterranean fluid
- Patent Title (中): 带负载推力轴承的电潜泵和泵送地下流体的方法
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Application No.: US12238649Application Date: 2008-09-26
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Publication No.: US07987913B2Publication Date: 2011-08-02
- Inventor: Larry J. Parmeter , Scott C. Strattan , David W. Chilcoat
- Applicant: Larry J. Parmeter , Scott C. Strattan , David W. Chilcoat
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Bracewell & Giuliani LLP
- Main IPC: E21B43/00
- IPC: E21B43/00 ; F16C17/04 ; F04B17/00 ; F04B35/04
Abstract:
A rotary pump having thrust bearings includes a system for equalizing the loading on the thrust bearings. The thrust bearings are each supported on pistons that are in fluid communication with a hydraulic circuit. The hydraulic circuit has substantially the same pressure throughout, thereby floating each piston at the same pressure to provide an equal support force to each thrust bearing via each piston.
Public/Granted literature
- US20100078177A1 Electrical Submersible Pump With Equally Loaded Thrust Bearings Public/Granted day:2010-04-01
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