Logging cable
US9244239B2 · kind B2 · utility
2Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2013 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Oct 4, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cable that includes a first optical fiber in a center, a first layer with a plurality of metal wires and a stainless steel tube surrounding the first optical fiber, a second optical fiber inside the stainless steel tube, and a second layer with a plurality of metal wires surrounding the first layer, wherein the first optical fiber is directly exposed to the outside environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.