Tubular filtration apparatus
US6799686B2 · kind B2 · utility
16Cited by
54References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Jan 8, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49908
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An expandable well screen has a desirable thin-wall construction together with a simplified fabrication method. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shape to form a filter structure having an outer perforated tubular shroud interiorly lined with the filter media. The tubular filter structure is telescoped onto a perforated base pipe and has its opposite ends sealingly secured thereto to complete the expandable well screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.