Forming a wellbore casing while simultaneously drilling a wellbore
US6640903B1 · kind B1 · utility
117Cited by
228References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2000 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Mar 10, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L15/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellbore casing is formed simultaneously with the drilling out of the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.