Hydrocarbon resource recovery apparatus including a transmission line with fluid tuning chamber and related methods
US9057259B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2013 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Jan 18, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein is provided. The apparatus includes a radio frequency (RF) antenna configured to be positioned within the wellbore, a transmission line configured to be positioned in the wellbore and coupled to the RF antenna, and an RF source configured to be coupled with the transmission line. The transmission line includes at least one transmission line tuning section including an inner conductor, an outer conductor surrounding the inner conductor, and a liquid-blocking plug between the inner and outer conductors to define a tuning chamber configured to receive a dielectric liquid with a gas headspace thereabove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.