Hydrocarbon resource recovery system and RF antenna assembly with thermal expansion device and related methods
US10577906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2018 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | May 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2214/03
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydrocarbon resource recovery system may include an RF source, and an RF antenna assembly coupled to the RF source and within a wellbore in a subterranean formation for hydrocarbon resource recovery. The RF antenna assembly may include first and second tubular conductors, a dielectric isolator, and first and second electrical contact sleeves respectively coupled between the first and second tubular conductors and the dielectric isolator so that the first and second tubular conductors define a dipole antenna. The RF antenna assembly may include a thermal expansion accommodation device configured to provide a sliding arrangement between the second tubular conductor and the second electrical contact sleeve when a compressive force therebetween exceeds a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.