Method and apparatus for connecting, installing, and retrieving a coiled tubing-conveyed electrical submersible pump
US7748444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2007 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Mar 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/533
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wellhead system has a wellhead of a subterranean hydrocarbon well, a coiled tubing hanger in the wellhead, a coiled tubing hanger extension connected to a top portion of the coiled tubing hanger, a first seal inside the coiled tubing hanger extension, the first seal and the coiled tubing hanger extension defining a sealed space in the coiled tubing hanger extension. Coiled tubing extends into the sealed space in the coiled tubing hanger extension and being suspended by the coiled tubing hanger and the coiled tubing hanger extension, the coiled tubing extending into the wellhead. A downhole electrical cable extends through the coiled tubing and into the sealed space in the coiled tubing hanger extension. An electrical connector extends through the seal and is connected electrically to the cable. The electrical connector has an electrical circuit having an electrically open and an electrically closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.