Electrical submersible pumps in the riser section of subsea well flowline
US6412562B1 · kind B1 · utility
30Cited by
11References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Sep 7, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D13/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A riser is installed which extends from a wellhead near the sea floor to near sea level. An electrical submersible pump assembly is suspended within the riser to pump well fluids up the riser. The electrical submersible pump includes impellers for displacing well fluids, and a base member having an intake port for receiving well fluid. The pump assembly can also include a separator for separating any gases from the well fluids, a packer for sealing the pump to the riser, coiled tubing from the pump to at least the upper end of the riser, or NPSH stages to aid in pumping a mixed flow of well fluids and gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.