Wedging assembly for borehole steering or branching
US4665995A · kind A · utility
29Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1985 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Aug 29, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wedging assembly for steering or branching a borehole comprises a wedge defining the steering or branching angle, a locking device for locking the wedge in a desired position, and an actuator for actuating the locking device, the locking device including cooperable male and female locking members which are relatively moveable to cause an annular locking surface on the female member to lock firmly about the wall of the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.