Method of drilling a directonal well bore
US4715452A · kind A · utility
10Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 1986 |
| Grant date | Dec 29, 1987 |
| Priority date | — |
| Expiry date | Jan 7, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a method of drilling a directional well bore with a drill string. According to the invention, at least a part of the trajectory of the well bore is drilled with a constant build rate so that the part has substantially a constant curvature shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.