Systems and methods for controlling fluid flow in a wellbore using a switchable downhole crossover tool
US11313202B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2016 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Sep 23, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system, method, and tool for controlling fluid in a wellbore. The system comprises a tubing string locatable in the wellbore and a crossover tool for enabling reverse circulation in the wellbore. The crossover tool comprises a tool body, a sleeve, a drag block assembly, and a packer assembly. The tool body comprises a bore in fluid communication with the tubing string and a valve in the bore. The sleeve is located in the tool body and controls the valve based on the axial position of the sleeve in the tool body. The drag block assembly is coupled to the sleeve through the tool body and engages the wellbore to resist axial movement of the sleeve relative to the tool body. The packer assembly is coupled to the tool body and creates a fluid barrier in the annulus formed between the tubing string and the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.