Downhole tool with passive barrier
US12116881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2022 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Dec 9, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/017
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus including an assembly associated with a downhole tool configured to thermally isolate a thermally sensitive component. Components of the assembly include an external isolating vessel; a passive thermal barrier encased in the external isolating vessel; at least one electronic component housed within the downhole tool for monitoring geothermal well properties; and at least one thermally sensitive electronics carrier package positioned within the passive thermal barrier comprising thermally sensitive electronic components. The passive thermal barrier ideally comprises an additively manufactured layered labyrinthine shell structure, a plurality of polarly phased centralizers between shell layers and minimal centralizing contact points on its exterior shell, to minimize known heat transfer modes associated with the external isolating vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.