Subsurface annular pressure management system—a method and apparatus for dynamically varying the annular well pressure
US11913328B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2022 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Dec 7, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool includes a choke, a controller, a communication and power element, instrumentation, and a stabilizer. The choke is configured to vary an annular well pressure. The choke includes an expandable element having an expanded position, an expanding position, and an unexpanded position. The controller is connected to the choke and is configured to place the choke in the expanded position, the expanding position, and the unexpanded position. The communication and power element is electronically connected to the controller. Power and instructions are sent to the controller from the communication and power element. The instrumentation is electronically connected to the communication and power element. The instrumentation comprises sensors configured to obtain downhole data and the downhole data is sent to the communication and power element. The stabilizer is configured to centralize the choke within the casing string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.