Downhole cables with both fiber and copper elements
US9941031B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2017 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Jan 18, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49194
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a method of manufacturing a downhole cable, the method including, forming a helical shape in an outer circumferential surface of a metal tube, the metal tube having a fiber element housed therein, and stranding a copper element in a helical space formed by the metallic tube. Also provided is a downhole cable including, a metallic tube having a helical space in an outer circumferential surface thereof, wherein the metallic tube has a fiber element housed therein, and a copper element, disposed in a helical space formed by the steel tube. Double-tube and multi-tube configurations of the downhole cable are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.