Steering assembly for directional drilling of a wellbore
US9109402B1 · kind B1 · utility
10Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Oct 9, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A steering assembly includes a housing having a longitudinal axis, a mandrel having a front connecting extremity and a rear connecting extremity, the mandrel passing through the housing and arranged in a first position coaxially to the longitudinal axis of the housing, a deflector device configured to exert a side force on the mandrel to offset the front connecting extremity of the mandrel from the longitudinal axis, and a tool face assembly configured to rotate the front connecting extremity of the mandrel in a desired direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.