Plug in pump for inverted shroud assembly
US8079418B2 · kind B2 · utility
16Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2009 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Mar 25, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The pump can be utilized in gassy oil wells to prevent gas slugs from locking the electrical submersible pump. A shroud assembly is provided with a bottom that can be fixed to the top of a seal section connected to the top of a motor. Additional lengths of shroud can be added as the shroud assembly is lowered into the well. The electrical submersible pump can then lowered into the shroud and supported from a production tubing string. A hanger can then be attached to the production tubing string to carry the weight of the shroud assembly, motor, and seal section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.