Downhole steering system and methods
US11118408B2 · kind B2 · utility
11Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2018 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Jun 26, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B4/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between a the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.