Well screen with floating mounting
US5979551A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/088
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Well screen assembly for use in horizontal wells and other situations where tensile, torsion and bending forces can damage well screens which are welded to their end supports provides a floating mounting which eliminates welding of the screen segments. A pair of complementary inner and outer slip rings are provided at one end of the well screen assembly with the inner ring being in sealed relationship with a screen segment and the outer ring being integrally affixed to an outer protective cover member and an axial support member such as a pipe base member or a tubular end fitting. The inner ring is free to slide and rotate relative to the outer ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.