Linear hydraulic pump for submersible applications
US11118582B2 · kind B2 · utility
0Cited by
43References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Jun 29, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C13/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A submersible pumping system has an electric motor, a rotary hydraulic pump driven by the electric motor, and a linear hydraulic pump that is configured to move a production fluid. The rotary hydraulic pump produces a pressurized working fluid that drives the linear hydraulic pump. In another aspect, a method is disclosed for controlling the temperature of an electric motor within a submersible pumping system disposed in a wellbore. The method includes the steps of circulating motor lubricant through a hydraulically driven production pump to reduce the temperature of the motor lubricant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.