Multi-activity offshore exploration and/or development drilling method and apparatus
US6056071A · kind A · utility
56Cited by
37References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1999 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Apr 14, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B2003/147
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A multi-activity drillship, or the like, method and apparatus having a single derrick and multiple tubular activity stations within the derrick wherein primary drilling activity may be conducted from the derrick and simultaneously auxiliary drilling activity may be conducted from the same derrick to reduce the length of the primary drilling activity critical path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.