Frictional enhancement of mating surfaces of power cable installed in coiled tubing
US10683711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Jul 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B7/046
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A string of coiled tubing for an electrical submersible well pump has insulated power conductors encased in an elastomeric jacket within the coiled tubing. A textured interface between the jacket and the inner side wall of the coiled tubing enhances frictional engagement between the jacket and the coiled tubing. The textured interface may be formed on the inner side wall of the coiled tubing and consist of a roughened or knurled surface. A tape may be wrapped helically around the jacket, the tape having an outer side with a textured surface in contact with the inner side wall of the coiled tubing. The textured interface may extend continuously for the length of the coiled tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.