Thermal expansion actuation system for sleeve shifting
US11480030B2 · kind B2 · utility
1Cited by
13References
13Claims
0Family size
Inventors
Key dates
| Filing date | Mar 5, 2019 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Mar 9, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A thermal expansion system for actuating a remote operated sleeve assembly to open and close ports in a housing for fluidly communicating between a bore of a tubular string in a wellbore to the formation utilizes actuation of a propellant charge to create expanding gas and heat in a combustion chamber to directly act on one side of a piston connected to an axially moveable sleeve supported in the housing to shift the sleeve in one direction. Ignition of another propellant charge in a combustion chamber on an opposing side of the piston is used to directly shift the sleeve in an opposing direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.