RADIO FREQUENCY ANTENNA ASSEMBLY FOR HYDROCARBON RESOURCE RECOVERY INCLUDING ADJUSTABLE SHORTING PLUG AND RELATED METHODS

摘要

A radio frequency (RF) antenna assembly configured to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery may include an RF transmission line and an RF antenna coupled to the RF transmission line. The RF antenna assembly may also include an adjustable balun that may include a tubular balun housing surrounding the RF transmission line and defining a space therebetween. The adjustable balun may further include an adjustable shorting body slidably movable within the space and contacting the tubular balun housing and the RF transmission line at an adjustable shorting position.

主权项

1. A radio frequency (RF) antenna assembly configured to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery, the RF antenna assembly comprising:
an RF transmission line; an antenna coupled to said RF transmission line; and an adjustable balun comprising
a tubular balun housing surrounding said RF transmission line and defining a space therebetween, andan adjustable shorting plug slidably movable within the space and contacting said tubular balun housing and said RF transmission line at an adjustable shorting position.