Method and apparatus for multilateral well entry
US6401812B2 · kind B2 · utility
6Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jul 19, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0035
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one embodiment, the invention relates to a method for location, or location and entry, of a lateral wellbore from a main wellbore of a multilateral hydrocarbon well, the method being characterized by unique operation of a controllably bent sub. The invention further relates to a system for location, or location and entry of a lateral wellbore, including a specialized controllably bent sub, and most preferably, to a controllably bent sub designed for efficient lateral wellbore location and/or entry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.