Charging pump for electrical submersible pump gas separator
US11661828B2 · kind B2 · utility
9Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2021 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Mar 29, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D31/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electrical submersible pump assembly (ESP) has a centrifugal production pump with production pump stages. A gas separator upstream is from the production pump. A centrifugal charge pump is upstream from the gas separator. The charge pump has charge pump stages and a discharge that leads to an intake of the gas separator. Each of the production pump stages has a higher lifting capacity than each of the charge pump stages. The impellers of the production pump stages have vane exit angles greater than vane exit angles of the impellers of the charge pump stages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.