Downhole adjustable bent housing for directional drilling
US6394193B1 · kind B1 · utility
95Cited by
6References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Jul 19, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/042
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides a hydraulically actuated downhole adjustable bent housing for use in directional drilling of bore holes and wells that allows adjustment of the housing from aligned to a bent configuration without raising or lowering the drillstring. The present invention also provides a method of directionally drilling a bore hole or a well using an downhole adjustable bent housing that can be operated without raising or lowering the drillstring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.