Methods and apparatus to control downhole tools
US6655460B2 · kind B2 · utility
120Cited by
22References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Oct 12, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel disposed in the body and movable in relation to the body. A conducive wire runs the length of the body and permits signals and/or power to be transmitted though the body as the tool changes its length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.