Directional casing drilling
US7086485B2 · kind B2 · utility
8Cited by
30References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Dec 12, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A directional drilling system, including a casing string, a casing latch disposed inside the casing string proximate a lower end of the casing string and coupled to the casing string, a rotary steerable system disposed inside the casing string and coupled to the casing latch, and a drill bit coupled to the rotary steerable system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.