Lost circulation fluid treatment
US6371306B1 · kind B1 · utility
20Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Dec 20, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/065
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for separating fluid from a mixture of fluid and fibrous lost circulation material, the method including introducing the mixture onto a screen assembly that is vibrating for passage of the fluid through the screen assembly and for separation of fibrous lost circulation material from the fluid, the screen assembly comprising a plurality of screens one on top of the other and including at least a first screen and a second screen, one of the screens with comprising a screen mesh woven with non-square openings as viewed from above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.