Abstract: In at least some embodiments, a high-voltage drilling system includes a power supply to output high-voltage power to an electrical conductor, a bit that extends a borehole based on the high-voltage power, and a hybrid drillstring that transports a fluid flow from the bit to convey detached formation material out of the borehole. At least part of the electrical conductor resides within the hybrid drillstring to convey power to the bit. The hybrid drillstring includes a coiled tubing section and a jointed pipe section.

Abstract: According to aspects of the present disclosure, systems and methods for controlling the speed of a fluid-controlled drive mechanism are described herein. An example system may include a housing, a variable flow fluid pathway disposed within the housing, an electromagnet coupled to the housing, a fluid-controlled drive mechanism in fluid communication with the variable flow fluid pathway, and a load-generating assembly coupled to the fluid-controlled drive mechanism. An example method may include altering a variable flow fluid pathway disposed within a housing, wherein the variable flow fluid pathway is in fluid communication with a fluid-controlled drive mechanism, and generating an electrical current through an electromagnet, wherein the electromagnet is coupled to the housing.

Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to retrieve a parsing instructions file and a binary configuration file stored in a housing, parse the binary configuration file according to the parsing instructions file to determine configuration information, display at least some of the configuration information as part of a graphical user interface, receive a selection of some of the configuration information and corresponding changed parameter values of the configuration information, transform the binary configuration file into a transformed version of the binary configuration file, and transmit the transformed version of the binary configuration file to the housing as a replacement for the binary configuration file. Additional apparatus, systems, and methods are described.

Abstract: A string of subs includes a controller sub. The controller sub includes a first end, a second end, a controller, a first controller bus coupled to the controller, the first controller bus exiting at the first end of the controller sub, and a second controller bus coupled to the controller, the second controller bus being separate from the first controller bus, the second controller bus exiting at the second end of the controller sub. The string of subs also includes a first measuring sub and a second measuring sub. A process, running on a computer, discovers that the first measuring sub is connected to the first controller bus, discovers that the second measuring sub is connected to the first controller bus, determines that the first measuring sub is physically closer to the controller sub than the second measuring sub, and use the fact that the first measuring sub is physically closer to the controller sub than the second measuring sub in controlling the operation of the string of subs.

Abstract: In some embodiments, an apparatus comprises a gasket configured for positioning between an end of a first drill pipe and an end of a second drill pipe, wherein the end of the first drill pipe includes an inductive coil ring and the end of the second drill pipe includes an inductive coil ring. The gasket includes an outer ring that is comprised of an elastic magnetic material that is essentially nonconductive. The outer ring has a diameter that is greater than the diameters of the inductive coil rings. The gasket includes an inner ring that is comprised of an elastic magnetic material that is essentially nonconductive. The inner ring has a diameter that is smaller than the diameters of the inductive coil rings, wherein the gasket is to be positioned such that the outer ring and the inner ring are outside and inside, respectively, the diameters of the inductive coil rings.

Abstract: An apparatus comprises a gasket configured for positioning between an end of a first drill pipe and an end of a second drill pipe, wherein the end of the first drill pipe includes an inductive coil ring and the end of the second drill pipe includes an inductive coil ring. The gasket includes an outer ring that is comprised of an elastic magnetic material that is essentially nonconductive. The outer ring has a diameter that is greater than the diameters of the inductive coil rings. The gasket includes an inner ring that is comprised of an elastic magnetic material that is essentially nonconductive. The inner ring has a diameter that is smaller than the diameters of the inductive coil rings, wherein the gasket is to be positioned such that the outer ring and the inner ring are outside and inside, respectively, the diameters of the inductive coil rings.

Abstract: In one example of a rotationally independent wellbore ranging system, a housing attached to a rotary component is positioned in a first wellbore and remains substantially stationary relative to the first wellbore when the rotary component rotates in the first wellbore. Multiple sensors affixed to the housing are operable to receive multiple ranging signals from a second wellbore while the rotary component rotates in the first wellbore, and provide the multiple ranging signals to a processor to determine a position of the first wellbore relative to the second wellbore.

Abstract: A string of subs includes a controller sub. The controller sub includes a first end, a second end, a controller, a first controller bus coupled to the controller, the first controller bus exiting at the first end of the controller sub, and a second controller bus coupled to the controller, the second controller bus being separate from the first controller bus, the second controller bus exiting at the second end of the controller sub. The string of subs also includes a first measuring sub and a second measuring sub. A process, running on a computer, discovers that the first measuring sub is connected to the first controller bus, discovers that the second measuring sub is connected to the first controller bus, determines that the first measuring sub is physically closer to the controller sub than the second measuring sub, and use the fact that the first measuring sub is physically closer to the controller sub than the second measuring sub in controlling the operation of the string of subs.

Abstract: Methods and systems that compensate for magnetic interference in azimuthal tool measurements. At least some method embodiments include a downhole logging method that includes taking measurements as a function of orientation from inside a borehole. The measurements are associated with different azimuthal bins, and an azimuthal direction is determined for each azimuthal bin. Because the tool rotates at a constant rate, the relative number of measurements associated which the different bins can be used to measure the effective sizes of the different bins and to redetermine the effective angles of the bins in the presence of magnetic interference. The tool measurements may include, but are not limited to, formation resistivity, magnetic field, and formation density.

Abstract: In some embodiments, an apparatus comprises a gasket (500, 620) configured for positioning between an end of a first drill pipe and an end of a second drill pipe, wherein the end of the first drill pipe (602) includes an inductive coil ring (610) and the end of the second drill pipe (604) includes an inductive coil ring (616). The gasket includes an outer ring (506, 624) that is comprised of an elastic magnetic material that is essentially nonconductive. The outer ring has a diameter that is greater than the diameters of the inductive coil rings. The gasket includes an inner ring (502, 622) 6 that is comprised of an elastic magnetic material that is essentially nonconductive. The inner ring has a diameter that is smaller than the diameters of the inductive coil rings, wherein the gasket is to be positioned such that the outer ring and the inner ring are outside and inside, respectively, the diameters of the inductive coil rings.

Abstract: A method and related system calibrating downhole tools for drift. Some of the illustrative embodiments are a logging tool comprising a tool body, a transmitter antenna associated with the tool body, a transmitter electronics coupled to the transmitter antenna, a first receiver antenna associated with the tool body, a first receiver electronics coupled to the first receiver antenna, and a signal generator separate from the first transmitter electronics, the signal generator coupled to the first receiver electronics, and the first signal generator provides a calibration signal to the first receiver electronics.

Abstract: A resistivity tool includes receiver electronics near each receiver antenna loop. Placement of the electronics in this position such as at the circuit card between the terminal ends of the receiver antenna loop improves signal to noise ratio by reducing or eliminating interference, noise, and cross-talk of transmissions from the receiver to a remote microprocessor. By using material such as silicon-on-sapphire, electronics can be miniaturized and operate reliably at when exposed to high temperatures, even for long periods.

Abstract: In at least some embodiments, electronic devices suitable for use at temperatures in excess of 200 C. may comprise an integrated circuit fabricated on a silicon carbide substrate, and a thick passivation layer. In other embodiments, electronic devices suitable for use at temperatures in excess of 200 C. may comprise an integrated circuit formed from silicon located on a sapphire substrate, and a thick passivation layer. The electronic devices may be implemented in the context of hydrocarbon drilling and production operations.

Abstract: A method and related system calibrating downhole tools for drift. Some of the illustrative embodiments are a logging tool comprising a tool body, a transmitter antenna associated with the tool body, a transmitter electronics coupled to the transmitter antenna, a first receiver antenna associated with the tool body, a first receiver electronics coupled to the first receiver antenna, and a signal generator separate from the first transmitter electronics, the signal generator coupled to the first receiver electronics, and the first signal generator provides a calibration signal to the first receiver electronics.

Abstract: Embodiments of methods and apparatus for high temperature operation of electronics according to the invention are disclosed. One embodiment of the invention generally includes an integrated circuit package having a substrate. A plurality of integrated circuits are coupled to a surface of the substrate. A lid is positioned above the substrate facing the surface. One or more pieces of compliant and thermally conductive material are compressed between at least one of the integrated circuits and the lid. The lid defines in part an enclosed volume containing the compliant and thermally conductive material.

Abstract: A method and related apparatus for telemetry between downhole devices and surface devices. In particular, the methods and related apparatus may send a first datum of a first parameter in an uncompressed form, and send a second datum of the first parameter in compressed form.

Abstract: A method and related apparatus for telemetry between downhole devices and surface devices. In particular, the methods and related apparatus may send a first datum of a first parameter in an uncompressed form, and send a second datum of the first parameter in compressed form.

Abstract: A method and related apparatus for telemetry between downhole devices and surface devices. In particular, the methods and related apparatus may send a first datum of a first parameter in an uncompressed form, and send a second datum of the first parameter in compressed form.

Abstract: A method and related apparatus for telemetry between downhole devices and surface devices. In particular, the methods and related apparatus may send a first datum of a first parameter in an uncompressed form, and send a second datum of the first parameter in compressed form.

Abstract: A method and system of operating an electromagnetic resistivity tool wherein at least one transmitting antenna of the tool is selectively operable at three or more resonant frequencies for better resistivity profiling of a formation.