Apparatus for maintaining a coiled electric conductor in a drill string
US4416494A · kind A · utility
59Cited by
5References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1980 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Oct 6, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for downhole storage of an electrical conductor within a drill string in a borehole. The conductor is stored as a coil in a flexible storage means. The apparatus is desirably used to eliminate the short lengths of cable and the associated connectors which are normally added with each new section of drill pipe added to the drill string. Because the device is flexible, it may be used in deviated drilling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.