Coring tool
US6009960A · kind A · utility
16Cited by
25References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1998 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Jan 27, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B25/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A coring assembly comprising a body securable at its upper end to a mandrel add at its lower end to a core catcher housing, a ball sleeve slidably disposed about said mandrel and moveable between a first and a second position, a ball closure valve disposed in said body and moveable with said mandrel between the first and second position, the combination operable to remotely cut and collect a loosely consolidated core sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.