Method of creating a wellbore in an underground formation
US6371203B1 · kind B1 · utility
87Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2001 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Jan 26, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of creating a wellbore in an underground formation comprising drilling a borehole in the underground formation using a drilling tubular, capable of being expanded, to which a downhole motor driving a drill bit has been connected, and, after drilling to the desired casing setting depth, expanding the drilling tubular into place to line the borehole by applying a radial load to the drilling tubular and removing said load from the drilling tubular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.