Tracked cable guide assembly and method for storing conductor cable inside a drill pipe
US4271908A · kind A · utility
11Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1980 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Jan 29, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved apparatus to store an insulated electrical conductor cable in a overlapped configuration within a drill pipe includes a track attached to the drill pipe to guide a lower cable guide so that the overlapped portions of conductor cable will not snarl or twist during rotary drilling operations. To insure against entanglement, further restriction of rotation may be gained by additionally tracking the lower cable guide on a tensioned portion of the conductor cable which extends from a subsurface instrument package upwardly to an upper cable guide. A method for installing this improved apparatus is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.