A pump comprises: a plurality of pistons each of which is slidable inside a cylinder so as to vary volume of a corresponding chamber, a plurality of suction valves, each of which is associated with a chamber and is operable to allow a liquid to enter the chamber, the suction valves being arranged in a first sequence, a plurality of delivery valves, each of which is associated with a chamber and is operable to allow said liquid to exit from the chamber, the delivery valves being arranged in a second sequence, an adjusting valve for adjusting pressure of the liquid exiting from the pump.

The adjusting valve is interposed between two consecutive valves of a sequence chosen from said first sequence and said second sequence.

The pump further comprises: an outlet conduit arranged downstream of the delivery valves, a shutter device interposed between an initial portion of the outlet conduit and a final portion of the outlet conduit, so as to put the initial portion in fluid communication with the final portion, or alternatively separate the initial portion from the final portion, a connecting hole for connecting a portion of the outlet conduit arranged downstream of the shutter device with the adjusting valve.

The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

An electric driven hydraulic fracking system is disclosed. A pump configuration includes the single VFD, the single shaft electric motor, and the single hydraulic pump mounted on the single pump trailer. A controller associated with the single VFD and is mounted on the single pump trailer. The controller monitors operation parameters associated with an operation of the electric driven hydraulic fracking system as each component of the electric driven hydraulic fracking system operates to determine whether the operation parameters deviate beyond a corresponding operation parameter threshold. Each of the operation parameters provides an indicator as to an operation status of a corresponding component of the electric driven hydraulic fracking system. The controller initiates corrected actions when each operation parameter deviates beyond the corresponding operation threshold. Initiating the corrected actions when each operation parameter deviates beyond the corresponding operation threshold maintains the operation of the electric driven hydraulic fracking system.

An electric driven hydraulic fracking system is disclosed. A pump configuration includes the single VFD, the single shaft electric motor, and the single hydraulic pump mounted on the single pump trailer. A controller associated with the single VFD and is mounted on the single pump trailer. The controller monitors operation parameters associated with an operation of the electric driven hydraulic fracking system as each component of the electric driven hydraulic fracking system operates to determine whether the operation parameters deviate beyond a corresponding operation parameter threshold. Each of the operation parameters provides an indicator as to an operation status of a corresponding component of the electric driven hydraulic fracking system. The controller initiates corrected actions when each operation parameter deviates beyond the corresponding operation threshold. Initiating the corrected actions when each operation parameter deviates beyond the corresponding operation threshold maintains the operation of the electric driven hydraulic fracking system.

A pump trailer including a frame, a pump and at least one locomotion member. The pump is suspended within the frame using an elevator. The at least one locomotion member is coupled to a base of the frame to facilitate motion of the frame over terrain. The elevator raises the pump to a fully raised position or lowers the pump to a pumping position.

A pump trailer including a frame, a pump and at least one locomotion member. The pump is suspended within the frame using an elevator. The at least one locomotion member is coupled to a base of the frame to facilitate motion of the frame over terrain. The elevator raises the pump to a fully raised position or lowers the pump to a pumping position.

A method may include receiving a set of inputs for operation of at least one electric hydraulic fracturing rig and at least one mechanical hydraulic fracturing rig of a hydraulic fracturing system. The method may further include optimizing operation of the at least one electric hydraulic fracturing rig and the at least one mechanical hydraulic fracturing rig based on at least the set of inputs. The method may further include iterating the optimization using a cost function for an operation mode of the hydraulic fracturing system.

A method may include receiving a set of inputs for operation of at least one electric hydraulic fracturing rig and at least one mechanical hydraulic fracturing rig of a hydraulic fracturing system. The method may further include optimizing operation of the at least one electric hydraulic fracturing rig and the at least one mechanical hydraulic fracturing rig based on at least the set of inputs. The method may further include iterating the optimization using a cost function for an operation mode of the hydraulic fracturing system.

A method may include receiving power supply-related information, cost-related information, power demand-related information, and operational priority or site configuration-related information associated with hydraulic fracturing rigs. The hydraulic fracturing rigs may be each associated with a fuel consumption component or an emissions component. The method may further include receiving operational data and determining operational parameters based on the operational data and emissions output predictions for the hydraulic fracturing rigs. The method may further include outputting the operational parameters to a computing device or a controller. The method may further include, based on outputting the operational parameters, receiving operational feedback data and determining whether to modify the operational parameters. In addition, based on the outputting, the method may include determining whether to modify the operational data based on determining to not modify the set of operational parameters and modifying the operational data based on determining to modify the operational data.

A method may include receiving power supply-related information, cost-related information, power demand-related information, and operational priority or site configuration-related information associated with hydraulic fracturing rigs. The hydraulic fracturing rigs may be each associated with a fuel consumption component or an emissions component. The method may further include receiving operational data and determining operational parameters based on the operational data and emissions output predictions for the hydraulic fracturing rigs. The method may further include outputting the operational parameters to a computing device or a controller. The method may further include, based on outputting the operational parameters, receiving operational feedback data and determining whether to modify the operational parameters. In addition, based on the outputting, the method may include determining whether to modify the operational data based on determining to not modify the set of operational parameters and modifying the operational data based on determining to modify the operational data.