Tubular element with inclined sealing lips and process for applying it to the wall of a well
US10087706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2013 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Dec 9, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates especially to a radially expandable tubular metallic element (2) which comprises on its external face (211) at least a series of annular sealing lips (5) made of elastically deformable material, these lips being spaced in pairs, the transversal cross section of each lip (5) having an end face (51) and two lateral walls (52, 53), characterized in that said lips (5) are in a non-metallic material and are inclined in the same direction, relative to said external face (211), that is, each of the lateral walls (52, 53) of each lip (5) forms a non-zero angle (α; β) relative to a radial plane (PR) of said element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.