Abstract: The present disclosure relates to power end frame assemblies having a plurality of bearing plates coupled together by a structural support. The frame assembly can include a plurality of bearing plates to support one or more components of a crankshaft assembly. Adjacent bearing plates of the frame assembly can form receptacles to accommodate a portion of one or more components of a crosshead assembly. The bearing plates of the frame assembly can have one or more openings to receive one or more structural supports. The one or more structural supports can couple together the plurality of bearing plates. Some configurations have bearing plates with portions that extend beyond the receptacle formed by adjacent bearing plates. In such configurations a structural support can couple the bearing plates via openings on these extended portions.

Abstract: A system and method of enhancing operation of hydraulic fracturing equipment at a hydraulic fracturing wellsite may include determining if a hydraulic fracturing stage profiles are available for use for hydraulic fracturing equipment at a wellsite. The method may include prompting an acceptance or amendment of one of the hydraulic fracturing stage profiles for a hydraulic fracturing pumping stage. The method may include, in response to an amendment of one of the hydraulic fracturing stage profiles, prompting acceptance of the amended hydraulic fracturing stage profile as the current hydraulic fracturing stage profile for use in association with the controller. The method may include, when a hydraulic fracturing stage profile is not available, prompting configuration of hydraulic fracturing pumping stage parameters for the current hydraulic fracturing stage profile.

Abstract: Embodiments of system and methods for supplying fuel, enabling communications, and conveying electric power associated with operation of a hydraulic fracturing unit of a plurality of hydraulic fracturing units are disclosed and may include a fuel line connection assembly configured to be connected to the first hydraulic fracturing unit and to supply fuel from a fuel source to a gas turbine engine connected to the hydraulic fracturing unit. A system also may include a communications cable assembly configured to be connected to the hydraulic fracturing unit and to enable data communications between the hydraulic fracturing unit and a data center or another hydraulic fracturing unit. A system further may include a power cable assembly configured to be connected to the hydraulic fracturing unit and to convey electric power between the hydraulic fracturing unit and a remote electrical power source or the plurality of hydraulic fracturing units.

Abstract: Methods of precipitating carbon dioxide stripped from natural gas or a post-combustion source are disclosed herein. The methods include provision of an aqueous spent caustic solution comprising carbon dioxide and adding a source of calcium ions to precipitate calcium carbonate and form a brine solution. The source of calcium ions is primarily calcium chloride and has calcium hydroxide as less than 1% wt/wt of the source of calcium ions. The method can include collecting the calcium carbonate precipitate, washing the calcium carbonate precipitate, and drying the calcium carbonate precipitate.

Abstract: Methods of treating natural gas or biogas include providing a caustic treatment composition comprising: a strong base; 0.005 to 0.025% wt/wt polyethylene or polypropylene glycol; and 0.005 to 0.02% wt/wt ethylenediaminetetraacetic acid or ethylenediamine; and a balance water, introducing a natural gas or a biogas and the caustic treatment composition into a caustic scrubber; and operating the caustic scrubber to remove hydrogen sulfide and one or more of an acid gas and carbon dioxide.

Abstract: A hydraulic fracturing system for blending liquid and solid particulates together to prepare a fracturing fluid, the system can include a plurality of independently operable blender units. In some aspects the blender units can operate with different sand concentrations in a split stream operation. In further aspects, a pump can be operated with the blender units to provide multiple fluid sources for a fleet of fracturing pumpers.

Abstract: Implementations are directed to aspect(s) of a fast feedback control system that actively stabilizes a geographically dispersed power grid by e.g., providing capabilities to match supply and demand at a high update rate. Implementations enable fast measurements of properties of the power grid and fast control parameter(s) back to controllable resource(s) in the power grid, such as control parameter(s) back to battery storage units, solar generation curtailment, wind generation curtailment, EV charging systems, and/or HVAC systems. In various implementations, the fast measurements and/or the fast control parameters can continuously occur at an update rate that is faster than once per second, such as at an update rate greater than 10, 20, 30, 40, 50, or 60 Hz. For example, measurements from a controllable resource can be transmitted to a geographically remote parent controller at 60 Hz and responsive control parameters can be received at the controllable resource at 60 Hz.

Abstract: Using real or estimated power measurements to detect one or more anomalies in an AC electric network. In some implementations, one or more actions can be automatically performed in response to detection of the anomaly. Such action(s) can include causing automatic control of electrical resource(s) of the AC electric network to mitigate the detected anomaly/anomalies. For example, such action(s) can include automatically isolating the AC electric network in response to detecting the AC electric network has one or more anomalies, and optionally restoring the AC electric network after the abnormal conditions are no longer detected. For instance, this can include a main AC electric network isolating an AC electric subnetwork in response to detecting abnormal conditions in the AC electric sub-network or an AC electric sub-network isolating and islanding itself from the main AC electric network in response to detecting abnormal conditions in the main AC electric network.

Abstract: A universal female welding lead connector collar including a safety cover hingedly connected to a main body of the collar. When engaged on the outer surface of a female welding lead connector, the safety cover can be kept closed to shield a female welding lead receptacle inside the female welding lead connector to prevent electrical arcing or electrocution.

Abstract: Methods, systems, and controllers for detecting and mitigating well screen outs may include a controller configured to operate a fracturing pump to supply fluid at a discharge rate to a wellhead at a fracturing well site. The controller may also operate a blender positioned to deliver a blend of proppant and fluid to the fracturing pump. The controller may compare a fluid pressure increase rate to a preselected increase rate indicative of a potential well screen out. The controller may incrementally decrease the discharge rate of the fracturing pump and a flow rate of a blender when the fluid pressure increase rate of the wellhead exceeds the preselected increase rate and the fluid pressure is within a preselected percentage of a maximum wellhead pressure until the fluid pressure of the fluid supplied to the wellhead is stabilized.

Abstract: A fluid flow turbine blade assembly for a turbine rotor includes a blade and a deflector extending spanwise along at least a portion of the blade. At least a portion of an upstream surface of the deflector, along at least a portion of a span of the deflector, has a concave shape in a chordwise direction such that at least a portion of a chord line between leading and trailing edges of the deflector is disposed outside a profile defined between the upstream surface and a downstream surface of the deflector. The deflector has a substantially uniform thickness or a chord-wise varying thickness between the upstream surface and the downstream surface. The deflector alters fluid flow over the blade so as to increase the blade's contribution to global torque generated by the assembly so that, with the deflector's torque contribution, the global torque of the assembly is greater than the global torque that would be generated by the blade alone without the benefit of the deflector.

Abstract: Apparatuses, assemblies, and methods for facilitating assembly, disassembly, and/or service of a fluid end for a pump may include a fluid end handling system, including a lift adaptor and a support frame. The lift adaptor may include a lift connector configured to be connected to a lifting mechanism for lifting the lift adaptor and the fluid end, and a fluid end support positioned to support the fluid end and orient the fluid end relative to a pump frame for assembly and removal of the fluid end. The support frame may include a pump frame connector to connect the support frame to the pump frame, a ramp having a ramp face extending in a direction substantially parallel to a direction in which the fluid end is moved for connection to the pump frame, and an actuator connector associated with the ramp and positioned to connect the support frame to an actuator.

Abstract: Systems can comprise a prime mover and an enclosure. The enclosure can include a body that comprises walls and one or more anti-ballistic materials. The prime mover can be housed in the body of the enclosure. For at least one of the walls of the body of the enclosure, at least one of the anti-ballistic material(s) can be attached to an inner surface of the wall. Each of the anti-ballistic material(s) may be in the form of a woven fabric comprising para-aramid fibers. In some examples, for each of the pumping unit(s), the walls of the enclosure's body include opposing first and second sidewalls; and opposing front and rear walls, each extending from the first sidewall to the second sidewall; wherein for each of the first and second sidewalls and front and rear walls, at least one of the anti-ballistic material(s) is attached to the inner surface of the wall.

Abstract: Embodiments of systems and methods for air recovery are disclosed. The diverted pressurized air may be used to supply a hydrostatic purge to the unutilized portion of a turbine engine fuel manifold circuit to ensure that exhaust gases from the utilized side of the fuel manifold circuit do not enter the portion of the alternative fuel manifold circuit rack. The assembly used to remove compressor section pressurized air may include a flow control orifice, line pressure measuring instrumentation, non-return valves, isolation valves and hard stainless-steel tubing assemblies. In some embodiments, a turbine compressor section diverter system may include a small air receiver used to increase the volume of air supplying the manifold to aid in potential pressure and flow disruptions from a turbine engine compressor section.

Abstract: A self-contained energy storage, distribution, and monitoring device for a vehicle comprises a single enclosed housing mounted within the vehicle. A VDC battery a VDC converter, a 110 VAC power input, a 110 VAC inverter, and a 110 VAC battery charger, and a VDC power input are each disposed within the enclosed housing. A controller is also disposed within the enclosed housing and is operably coupled with the VDC battery, the VDC converter, the 110 VAC power input, the 110 VAC inverter, and the 110 VAC battery charger. The controller is adapted to provide charging and discharging control of the VDC battery, switching of the VDC converter depending on the presence or absence of a 110 VAC power supply, and switching of the 110 VAC inverter and 110 VAC battery charger depending on the presence or absence of a 110 VAC power supply.

Abstract: Systems and methods for operating hydraulic fracturing units, each including a hydraulic fracturing pump to pump fracturing fluid into a wellhead and an internal combustion engine to drive the hydraulic fracturing pump, may include receiving signals indicative of operational parameters. The systems and methods also may include determining an amount of required fracturing power sufficient to perform the hydraulic fracturing operation, determining an available power to perform the hydraulic fracturing operation and a difference between the available power and the required power, and controlling operation of the hydraulic fracturing units based at least in part on the power difference. When the power difference is indicative of excess power available, the system and methods may include causing at least one of the hydraulic fracturing units to idle, and when the power difference is indicative of a power deficit, increasing a power output of at least one of the hydraulic fracturing units.

Abstract: Systems and methods for operating hydraulic fracturing units to pump fracturing fluid into a wellhead may include receiving a target flow rate and/or a target pressure for fracturing fluid supplied to the wellhead. The systems and methods may increase a flow rate from the hydraulic fracturing units according to a controlled increasing flow rate schedule toward the target flow rate and/or target pressure. When it has been determined the target flow rate and/or target pressure has been achieved, the systems and methods also may include operating the hydraulic fracturing units to maintain the target flow rate and/or target pressure. When the target flow rate has not been achieved, the systems and methods also may include generating notification signals, and/or when the target pressure has not been achieved, the systems and methods further may include operating the hydraulic fracturing units to maintain a maximum flow rate.

Abstract: Apparatuses, assemblies, and methods for facilitating assembly and disassembly of high-power fluid pumps may include a pivoting support assembly to facilitate assembly and disassembly of the pump. The pivoting support assembly may include a base, a first support connected to the base and configured to be connected to a pump frame of the pump, and a second support connected to the first support and configured to be connected to the pump frame of the pump. The pivoting support assembly further may include a first actuator connected to the base and the first support, and a second actuator connected to the first support and the second support. The first actuator may be configured to pivot the first support to re-orient the pump frame for installation of a crankshaft, and the second actuator may be configured to pivot the second support to re-orient the pump frame for installation of a connecting rod.

Abstract: A system and method for operating a fleet of pumps for a turbine driven fracturing pump system used in hydraulic fracturing is disclosed. A method of operating a fleet of pumps associated with a hydraulic fracturing system includes receiving a demand Hydraulic Horse Power (HHP) signal. The demand HHP signal may include the Horse Power (HP) required for the hydraulic fracturing system to operate and may include consideration for frictional and other losses. The method further includes operating all available pump units at a percentage of rating below Maximum Continuous Power (MCP) level, based on the demand HHP signal. Furthermore, the method may include receiving a signal for loss of power from one or more pump units. The method further includes operating one or more units at MCP level and operating one or more units at Maximum Intermittent Power (MIP) level to meet the demand HHP signal.

Abstract: A system for supplying electric power includes: a plurality of electric motors coupled to well treatment pumps; a mobile substation that receives power from a utility electric grid; a plurality of mobile electric power generating units; a controller configured to (i) receive a total required flow rate of the liquid; (ii) calculate a total amount of electric power required to achieve the required total flow rate; (iii) receive an amount of power available from the utility electric grid; (iv) direct the substation to provide electric power to the plurality of electric motors; and (v), direct one or more electric power generating units in the plurality of electric power generating units to provide electric power to the plurality of electric motors according to a priority order to meet the total amount of electric power, if the required amount of electric power exceeds the amount of power available from the utility grid.