Tubing hanger with shiftable annulus seal
US11828127B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Oct 7, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/043
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tubing: hanger assembly with a shiftable annulus seal is provided. The shiftable annulus seal allows for selectively sealing the tubing hanger within a easing hanger, a wellhead, or a tubing head. The tubing hanger assembly also includes a secondary annulus flow path formed through the body of the tubing hanger. The shiftable annulus seal selectively opens/closes a relatively large flow path to the tubing string annulus for circulation of fluid through the tubing string and setting a-packer. The secondary annulus flow path facilitates monitoring and bleeding of pressure front the annulus after the shiftable annulus seal is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.