High-temperature downhole devices
US7720323B2 · kind B2 · utility
45Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2008 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Oct 9, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/135
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Subterranean oilfield high-temperature devices configured or designed to facilitate downhole monitoring and high data transmission rates with laser diodes that are configured for operation downhole, within a borehole, at temperatures in excess of 115 degrees centigrade without active cooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.