Top drive with top entry and line inserted therethrough for data gathering through the drill string
US10301898B2 · kind B2 · utility
14Cited by
32References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Jul 3, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B3/022
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for transmitting data from a downhole instrument to a surface location includes running the downhole instrument into a wellbore on a line. The downhole instrument and at least a portion of the line are positioned inside a drill string. The downhole instrument includes first and second sets of fingers that contact an inner surface of the drill string. The downhole instrument measures an effect occurring in the drill string. The effect is due to perturbations in the drill string during a drilling process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.