Methods and systems for downhole telemetry
US8274400B2 · kind B2 · utility
10Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2010 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Apr 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/25891
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for facilitating optical communications and sensing, with downhole optical or other sensors, in high temperature oilfield applications. The apparatus can include a downhole telemetry cartridge for downhole use at temperatures in excess of about 115 degrees Celsius. The apparatus can also include a downhole light source optically connected to the telemetry cartridge. The light source may include at least one remotely pumped laser optically connected to a surface pump laser via optical fiber(s). The remotely pumped laser may drive the downhole optical or other sensors for their operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.