Apparatus and methods for forming a lateral wellbore
US6708769B2 · kind B2 · utility
89Cited by
149References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2001 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | May 4, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and system of forming a lateral wellbore in a time and trip saving manner using a mill/drill to locate and place a casing window. In one aspect of the invention, a lateral wellbore is drilled with liner which is subsequently left in the lateral wellbore to line the sides thereof. In another aspect, the mill/drill is rotated with a rotary steerable system and in another aspect, the mill/drill is rotated with a downhole motor or a drill stem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.