Drilling system, biasing mechanism and method for directionally drilling a borehole
US10895113B2 · kind B2 · utility
1Cited by
51References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2019 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | May 3, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/0228
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A variable offset bearing assembly, associated with an offset shaft, having a longitudinal axis, disposed with a housing, having a longitudinal axis, the assembly including a radial bearing associated with the offset shaft; a thrust bearing associated with the offset shaft; the radial bearing and thrust bearing permit axial misalignment between the longitudinal axes of the offset shaft and the housing; and the thrust bearing and radial bearing manage axial and radial misalignment of the radial bearing and thrust bearing within the housing, caused by an axial or radial force exerted upon the housing and offset shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.