Well screen having a uniform outer diameter
US5787980A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1994 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Nov 28, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/088
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well screen is composed of a plurality of screen units connected in series. Each of said screen units has a cylindrical connecting section at least at one end thereof and includes a plurality of support rods extending in the axial direction of the screen disposed cylindrically about a section of the screen other than the connecting section at a predetermined interval in the circumferential direction of the screen, and a wire wound on the outer periphery of said support rods so as to form slits of a predetermined width. The well screen further includes outer diameter equalizing means provided about adjacent ones of the connecting sections of two of the screen units connected to each other for substantially equalizing the outer diameter of said connecting sections to the outer diameter of sections other than the connecting sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.