Subsea well with electrical submersible pump above downhole safety valve
US7677320B2 · kind B2 · utility
15Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2006 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Nov 4, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subsea well production system has a natural drive mode and a lift-assist mode using a submersible pump. The submersible pump can be installed while the well is live. The well system has a downhole safety valve in the production tubing. The operator closes the downhole safety valve and lowers an electrical submersible pump assembly into the production tubing. Once landed, the valve is opened and the pump assembly placed in operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.