Communication with a downhole tool
US6550538B1 · kind B1 · utility
12Cited by
22References
69Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Mar 19, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system that is usable with a subterranean well includes a downhole assembly and an apparatus. The downhole assembly is adapted to respond to a command that is encoded in a stimulus that is communicated downhole. The apparatus is adapted to change a pressure of a gas in communication with the well to generate the stimulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.