Abstract:
A rigid radio frequency (RF) coaxial transmission line to be positioned within a wellbore in a subterranean formation may include a series of rigid coaxial sections coupled together in end-to-end relation. Each rigid coaxial section may include an inner conductor, a rigid outer conductor surrounding the inner conductor, and a dielectric therebetween. Each of the rigid outer conductors may include a rigid outer layer having opposing threaded ends defining overlapping mechanical threaded joints with adjacent rigid outer layers. Each of the rigid outer conductors may also include an electrically conductive inner layer coupled to the rigid outer layer and having opposing ends defining electrical joints with adjacent electrically conductive inner layers.
Abstract:
A rigid radio frequency (RF) coaxial transmission line to be positioned within a wellbore in a subterranean formation may include a series of rigid coaxial sections coupled together in end-to-end relation. Each rigid coaxial section may include an inner conductor, a rigid outer conductor surrounding the inner conductor, and a dielectric therebetween. Each of the rigid outer conductors may include a rigid outer layer having opposing threaded ends defining overlapping mechanical threaded joints with adjacent rigid outer layers. Each of the rigid outer conductors may also include an electrically conductive inner layer coupled to the rigid outer layer and having opposing ends defining electrical joints with adjacent electrically conductive inner layers.
Abstract:
A radio frequency (RF) applicator may be rotated during positioning within a wellbore in a subterranean formation. The wellbore may have at least one bend therein. The RF applicator may include a series of tubular conductors, and a respective bendable tubular dielectric coupler rotationally interlocking opposing ends of adjacent ones of the series of tubular conductors to define a tubular antenna. The RF applicator may include at least one RF feed conductor extending within the tubular antenna and connected to the series of tubular conductors.
Abstract:
A radio frequency (RF) coaxial transmission line to be positioned within a wellbore in a subterranean formation may include a series of coaxial sections coupled together in end-to-end relation. Each coaxial section may include an inner conductor, a dual-wall outer conductor surrounding the inner conductor, and a dielectric therebetween. Each of the dual-wall outer conductors may include an outer wall and an inner wall spaced apart therefrom defining a fluid passageway. Each coaxial section may further include a threaded endpiece coupled to each opposing end of the dual-wall outer conductor and having threads to define an overlapping mechanical threaded joint and an electrical joint with an adjacent threaded endpiece.
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 radio frequency (RF) coaxial transmission line to be positioned within a wellbore in a subterranean formation may include a series of coaxial sections coupled together in end-to-end relation. Each coaxial section may include an inner conductor, a dual-wall outer conductor surrounding the inner conductor, and a dielectric therebetween. Each of the dual-wall outer conductors may include an outer wall and an inner wall spaced apart therefrom defining a fluid passageway. Each coaxial section may further include a threaded endpiece coupled to each opposing end of the dual-wall outer conductor and having threads to define an overlapping mechanical threaded joint and an electrical joint with an adjacent threaded endpiece.
Abstract:
A radio frequency (RF) applicator may be rotated during positioning within a wellbore in a subterranean formation. The wellbore may have at least one bend therein. The RF applicator may include a series of tubular conductors, and a respective bendable tubular dielectric coupler rotationally interlocking opposing ends of adjacent ones of the series of tubular conductors to define a tubular antenna. The RF applicator may include at least one RF feed conductor extending within the tubular antenna and connected to the series of tubular conductors.
Abstract:
A steering tool system may provide a bottom hole assembly (BHA) and a surface control/interface (SCI). The steering tool may provide an improved electronic schematic that provides a data line that is separate from the power line. The BHA may provide a full bore flow path. The connectors of a cablehead section may be designed to ease make up with proper contact to the connectors. The BHA may also be suitable for pumping a ball to a hydraulic disconnect. The design of the system allows conductors to pass through the hydraulic disconnect and orienter control section.
Abstract:
A radio frequency (RF) antenna assembly to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery may include a series of tubular conductors coupled together in end-to-end relation. Each tubular conductor may include a dual-wall conductor defining an RF antenna. The dual-wall conductor may include an outer wall and an inner wall spaced inwardly therefrom to define an outer fluid passageway. The RF antenna assembly may further include an RF transmission line extending within at least some of the tubular conductors.
Abstract:
This application discloses a horizontal spacer for rectangular and non-rectangular glass blocks, which enables non-rectangular glass blocks to be connected to adjacent non-rectangular or rectangular glass blocks such that any configuration of wall may be formed using such blocks. The horizontal spacer has elongated tabs and receiving holes which extend from opposing sides. The elongated tabs engage the receiving holes of adjacent horizontal spacers.