Drilling system
US8695731B2 · kind B2 · utility
0Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2008 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Apr 28, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/068
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling system comprising a rotatable drill pipe 12 connected to a tractor unit 10, and a steerable drilling system 18, 20, 22, connected to and movable by the tractor unit 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.