Directional well drilling
US8978784B2 · kind B2 · utility
3Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2009 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Oct 8, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/067
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling assembly comprises a bent housing terminating in a drill bit (18), and a top section coupled to the bent section. The top section is suspended upon coiled tubing (10). The drilling assembly includes an orienter means (2-6) capable of rotating the bent housing with respect to the top section, wherein the orienter means includes an electric motor (34) situated in the bent section. The bent housing includes sensor means (30) for monitoring downhole physical variables, the sensor means being situated in the bent section. The orienter means may be an electro-mechanical motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.