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.

Abstract: A hydrocarbon resource recovery system is for hydrocarbon recovery in a subterranean formation. The hydrocarbon resource recovery system may include an RF antenna within the subterranean formation for hydrocarbon resource recovery, an RF source aboveground, a coaxial RF transmission line coupled between the RF antenna and the RF source and having an aboveground portion, a dielectric fluid pressure source, and pressure members joined together in end-to-end relation to define a pressure housing coupled to the dielectric fluid pressure source and surrounding the aboveground portion of the coaxial RF transmission line. The pressure members may include a straight tubular pressure member, and an elbow pressure member coupled thereto.

Abstract: An 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. The RF antenna assembly may include an RF transmission line having an inner conductor and an outer conductor extending within the first tubular conductor, and a feed structure coupled to a distal end of the RF transmission line. The feed structure may include a first radially compressible connector coupled to the outer conductor of the RF transmission line to slidably engage adjacent portions of the first electrical contact sleeve, a second radially compressible connector coupled to the inner conductor of the RF transmission line to slidably engage adjacent portions of the second electrical contact sleeve, and a dielectric tube coupled between the first and second radially compressible connectors.

Abstract: A method of recovering hydrocarbon resources in a subterranean formation may include injecting a solvent via a wellbore into the subterranean formation while supplying radio frequency (RF) power from the wellbore and into the subterranean formation. The method may also include recovering hydrocarbon resources via the wellbore and from the subterranean formation while supplying RF power from the wellbore and into the subterranean formation.

Abstract: A hydrocarbon resource recovery system may include an RF source, and an RF antenna assembly coupled to the RF source and extending laterally within a wellbore in a subterranean formation for hydrocarbon resource recovery. The RF antenna assembly may include first and second tubular conductors, and a dielectric isolator coupled between the first and second tubular conductors to define a dipole antenna. The hydrocarbon resource recovery system may include solvent injectors within respective laterally extending wellbores extending transverse and above the RF antenna assembly and configured to selectively inject solvent into the subterranean formation adjacent the RF antenna assembly.

Abstract: An 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. The RF antenna assembly may include an RF transmission line having an inner conductor and an outer conductor extending within the first tubular conductor, and a feed structure coupled to a distal end of the RF transmission line. The feed structure may include a first radially compressible connector coupled to the outer conductor of the RF transmission line to slidably engage adjacent portions of the first electrical contact sleeve, a second radially compressible connector coupled to the inner conductor of the RF transmission line to slidably engage adjacent portions of the second electrical contact sleeve, and a dielectric tube coupled between the first and second radially compressible connectors.

Abstract: An antenna assembly may be positioned within a wellbore in a subterranean formation. The antenna assembly includes a tubular antenna element to be positioned within the wellbore, and an RF coaxial transmission line to be positioned within the tubular antenna element. The RF coaxial transmission line includes a series of coaxial sections coupled together in end-to-end relation, each coaxial section including an inner conductor, an outer conductor surrounding the inner conductor, and a dielectric therebetween. Each of the outer conductors has opposing threaded ends defining overlapping mechanical threaded joints with adjacent outer conductors.

Abstract: A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (RF) antenna within the wellbore, and a tool slidably positioned within the tubular RF antenna. The tool may include an RF transmission line and at least one RF contact coupled to a distal end of the RF transmission line and biased in contact with the tubular RF antenna. The tool may also include an anchoring device configured to selectively anchor the RF transmission line and the at least one RF contact within the tubular RF antenna.

Abstract: A device for hydrocarbon resource recovery from at least one well in a subterranean formation may include a radio frequency (RF) source, a solvent source, and a double-wall structure coupled to the RF source to define an RF antenna within the at least one well to provide RF heating to the subterranean formation. The double-wall structure may absorb heat from adjacent portions of the subterranean formation. The double-wall structure may also include inner and outer walls defining a solvent passageway therebetween coupled to the solvent source. The outer wall may have a plurality of openings therein to eject solvent into the subterranean formation. The double-wall structure may transfer heat to the solvent so that the ejected solvent is in a vapor state.

Abstract: A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (RF) antenna within the wellbore and a tool slidably positioned within the tubular RF antenna. The tool may include an RF transmission line and at least one RF contact coupled to a distal end of the RF transmission line and biased in contact with the tubular RF antenna. The tool may also include a dielectric grease injector configured to inject dielectric grease around the at least one RF contact.

Abstract: A radio frequency (RF) and fluid coupler is for a subterranean assembly. The assembly may have a fluid passageway therein, and may include an RF antenna and a coaxial transmission line connected thereto. The coupler may include an electrically conductive hollow body that includes electrically conductive segments connected together in end-to-end relation at respective joints to provide an outer electrical pathway to connect to the outer conductor of the coaxial transmission line. An elongate conductive member may extend within the electrically conductive hollow body to provide an inner electrical pathway to connect to the inner conductor of the coaxial transmission line. A respective dielectric pressure barrier may be between the elongate conductive member and adjacent portions of the electrically conductive hollow body adjacent each of a pair of joints to define a fluid chamber to connect to the fluid passageway. A fluid port may be connected to the fluid chamber.

Abstract: A radio frequency (RF) and fluid coupler is for a subterranean assembly. The assembly may have a fluid passageway therein, and may include an RF antenna and a coaxial transmission line connected thereto. The coupler may include an electrically conductive hollow body that includes electrically conductive segments connected together in end-to-end relation at respective joints to provide an outer electrical pathway to connect to the outer conductor of the coaxial transmission line. An elongate conductive member may extend within the electrically conductive hollow body to provide an inner electrical pathway to connect to the inner conductor of the coaxial transmission line. A respective dielectric pressure barrier may be between the elongate conductive member and adjacent portions of the electrically conductive hollow body adjacent each of a pair of joints to define a fluid chamber to connect to the fluid passageway. A fluid port may be connected to the fluid chamber.

Abstract: A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (RF) antenna within the wellbore and a tool slidably positioned within the tubular RF antenna. The tool may include an RF transmission line and at least one RF contact coupled to a distal end of the RF transmission line and biased in contact with the tubular RF antenna. The tool may also include a guide member extending longitudinally outwardly from the distal end of the RF transmission line.

Abstract: A hydrocarbon resource recovery apparatus for a subterranean formation having a wellbore extending therein includes a radio frequency (RF) power source, a gas source, and an RF antenna within the wellbore. An RF transmission line extends within the wellbore between the RF power source and the RF antenna and is coupled to the gas source to be cooled and/or pressure balanced by a flow of gas therefrom. At least one of the RF antenna and RF transmission line define a gas lift passageway coupled to the gas source to lift hydrocarbon resources within the wellbore.

Abstract: A hydrocarbon resource recovery apparatus for a subterranean formation having a wellbore extending therein includes a radio frequency (RF) power source, a dielectric fluid source, and an RF antenna within the wellbore. An RF transmission line extends within the wellbore between the RF power source and the RF antenna and is coupled to the dielectric fluid source to be cooled and/or pressure balanced by a flow of dielectric fluid therefrom. A hydrocarbon resource recovery pump is within the wellbore and is also coupled to the dielectric fluid source to be powered by the flow of dielectric fluid therefrom.

Abstract: A device for hydrocarbon resource recovery from at least one well in a subterranean formation may include a radio frequency (RF) source, a solvent source, and a double-wall structure coupled to the RF source to define an RF antenna within the at least one well to provide RF heating to the subterranean formation. The double-wall structure may absorb heat from adjacent portions of the subterranean formation. The double-wall structure may also include inner and outer walls defining a solvent passageway therebetween coupled to the solvent source. The outer wall may have a plurality of openings therein to eject solvent into the subterranean formation. The double-wall structure may transfer heat to the solvent so that the ejected solvent is in a vapor state.

Abstract: A method of recovering hydrocarbon resources in a subterranean formation may include injecting a solvent via a wellbore into the subterranean formation while supplying radio frequency (RF) power from the wellbore and into the subterranean formation. The method may also include recovering hydrocarbon resources via the wellbore and from the subterranean formation while supplying RF power from the wellbore and into the subterranean formation.

Abstract: A hydrocarbon resource recovery apparatus for a subterranean formation having a wellbore extending therein includes a radio frequency (RF) power source, a dielectric fluid source, and an RF antenna within the wellbore. An RF transmission line extends within the wellbore between the RF power source and the RF antenna and is coupled to the dielectric fluid source to be cooled and/or pressure balanced by a flow of dielectric fluid therefrom. A hydrocarbon resource recovery pump is within the wellbore and is also coupled to the dielectric fluid source to be powered by the flow of dielectric fluid therefrom.

Abstract: A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (RF) antenna within the wellbore and a tool slidably positioned within the tubular RF antenna. The tool may include an RF transmission line and at least one RF contact coupled to a distal end of the RF transmission line and biased in contact with the tubular RF antenna. The tool may also include a dielectric grease injector configured to inject dielectric grease around the at least one RF contact.

Abstract: A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (RF) antenna within the wellbore and a tool slidably positioned within said tubular RF antenna. The tool may include an RF transmission line and at least one RF contact coupled to a distal end of said RF transmission line and biased in contact with said tubular RF antenna. The tool may also include a guide member extending longitudinally outwardly from the distal end of said RF transmission line.