Horizontal drilling method and apparatus
US5042597A · kind A · utility
20Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1990 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Oct 15, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for drilling highly deviated wells is disclosed. A drilling assembly is attached to a drill string. The drilling assembly includes a bent sub, a pony collar attached to the bent sub, a motor with a bent housing, and a bit. Improved survey collars and bits are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.