Light pipe for logging-while-drilling communications
US11047712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Aug 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C19/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Technologies for propagating optical information through an optical waveguide in a downhole environment are provided. An example method can include generating a light signal via a light-emitting device at a first location on a wellbore environment; propagating the light signal through an optical waveguide on an inner surface of a wellbore tool, the optical waveguide including a first layer of low refractive-index material, a second layer of high refractive-index material applied to a first surface of the first layer, and a third layer of low refractive-index material applied to a second surface of the second layer; and receiving, by a detector at a second location on the wellbore environment, the light signal via the optical waveguide on the inner surface of the wellbore tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.