Packing element system with profiled surface
US8397803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Feb 24, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole retrievable dual directional isolation tool, comprising a mandrel, a compressor ring concentric with the mandrel, and a packing element concentric with the mandrel and having an outer surface defining a plurality of grooves. A downhole retrievable dual directional isolation tool, comprising a mandrel, a packing element concentric with the mandrel, a compressor ring concentric with the mandrel and having a first side wall proximate to a second side wall of the packing element, and a stop ring concentric with the mandrel having a third side wall proximate to a fourth side wall of the packing element, wherein the first side wall of the compressor ring or the third side wall of the stop ring have a circumferential land, whereby in a set state of the tool a contact area between the circumferential land and the second side wall of the packing element or the fourth side wall of the packing element achieves higher contact pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.