Downhole packer assembly
US11624256B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2021 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Nov 23, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/163
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole packer assembly includes a body part, an expandable tubular packer element surrounding the body part, and a first end and a second end of the expandable tubular packer element are fixedly connected with the body part, providing an expandable space fillable with liquid during expansion, and a metal sleeve surrounding the expandable tubular packer element. A restriction unit has an axially movable part movable between a first axial position in which the axially movable part at least partly overlaps the expandable tubular packer element and a second axial position in which the axially movable part has been axially displaced in relation to the body part away from the expandable tubular packer element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.