Method and apparatus for installing and removing an electric submersible pump
US8915303B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2010 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | May 3, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/068
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of servicing an electric submersible pump in a well with a positive wellhead pressure includes providing production tubing in the well casing, a coil tubing string within the production tubing having an electric submersible pump at a downhole end of the coil tubing string, and a pump-receiving housing above the injection port of the wellhead. With the injection port sealed and the pump-receiving housing opened, the electric submersible pump may be inserted or removed from the pump-receiving housing. With the pump-receiving housing closed and the injection port opened, the electric submersible pump may be moved to or from the production tubing in the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.