Method and device for multilateral sealed junctions
US11111762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2017 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Aug 16, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This disclosure provides a dissolvable sealing joint system that can be used in an improved method of sealing a multi-lateral well junction. The sealing joint system is comprised of a dissolvable junction subassembly that can be easily removed after a sealing operation is conducted. A tapered end of the dissolvable junction subassembly is inserted in a liner of a secondary wellbore, and a seal located about the tapered end is sealed against the top of the liner and a no-go shoulder of dissolvable junction subassembly. Once a seal is established, an isolation fluid is pumped into the junction area via a fluid port located in the dissolvable junction subassembly. A method of isolating a wellbore junction is also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.