Downhole tool for vertical and directional control
US10422184B1 · kind B1 · utility
4Cited by
0References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2018 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Oct 17, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole steering tool includes one or more steering blades selectively extendable from a housing. Each steering blade may be extended by fluid pressure within a steering cylinder. Each steering cylinder may be coupled to the interior of a mandrel positioned within the housing through an adjustable orifice. The adjustable orifice may be moved between an open and a partially open position. The adjustable orifice may be controlled by a ring valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.