In one aspect, the present invention provides a surface unit for a pumping system. The surface unit may include a conduit that is reciprocatable to pump produced fluid from downwell to the surface unit and a flow line in fluid communication with the conduit such that the produced fluid may be collected from the conduit. The surface unit may also include a pump barrel that separates the conduit from a well tubing and a diluent line in fluid communication with a space between the pump barrel and the well tubing. The diluent line may be sealed from the conduit and the flow line such that a diluent or lubricant may be delivered to the space between the pump barrel and the well tubing via the diluent line without contaminating the produced fluid.

The present invention discloses a turbine fracturing equipment, including a transporter, a turbine engine, a reduction gearbox, a transmission mechanism and a plunger pump, wherein an output end of the turbine engine is connected to one end of the reduction gearbox, the other end of the reduction gearbox is connected to the plunger pump through a transmission mechanism; the transporter is used to support the turbine engine, the reduction gearbox, the transmission mechanism and the plunger pump; the transporter includes a chassis provided with a transport section, a bearing section and a lapping section which are connected in sequence; while the turbine fracturing equipment is in a working state, the bearing section can contact with the ground, while the turbine fracturing equipment is in a transport state, the bearing section does not contact with the ground. Beneficial effects: the equipment adopts a linear connection and a special chassis design, so that the center of gravity is double lowered to guarantee its stability and safety, the structure is simpler, the investment and operation costs are decreased, the risk of total breakdown of the fracturing site is reduced, and the equipment has a good transmission performance and is suitable for continuous operation conditions with long time and heavy load.

An artificial lift system may include a rodless hydraulic pump actuator including an actuator housing assembly, an actuator piston assembly supported for reciprocal translation stroke movement relative to the actuator piston assembly, an actuator piston assembly production fluid passage extending through the actuator piston assembly, and a tubular coupling below the actuator housing assembly having a coupling flow passage to pass production fluid into the actuator piston assembly production fluid passage.

An artificial lift system may include a rodless hydraulic pump actuator including an actuator housing assembly, an actuator piston assembly supported for reciprocal translation stroke movement relative to the actuator piston assembly, an actuator piston assembly production fluid passage extending through the actuator piston assembly, and a tubular coupling below the actuator housing assembly having a coupling flow passage to pass production fluid into the actuator piston assembly production fluid passage.

An apparatus and method according to which a fluid, such as a fracturing fluid, is pressurized. The apparatus includes a motor that produces a first rotational output including a first angular velocity, a pump operably coupled to the motor, the pump comprising a fluid end and a power end operably coupled to the fluid end, and a transmission operably coupled between the motor and the pump. The transmission receives the first rotational output as a first rotational input, the first rotational input including the first angular velocity, and converts the first rotational input into a second rotational output, the second rotational output including a second angular velocity. The power end receives the second rotational output as a second rotational input, the second rotational input including the second angular velocity. In some embodiments, the transmission is directly connected to, or part of, the pump and the motor.

The downhole electromagnetic pump includes a pumping chamber that is provided with a throughbore through which fluid may be pumped. An electrode arrangement is provided in order to produce an electro-hydro-dynamic force on fluids within the pump such that fluid may be pumped through the pump in a desired direction. A method of utilizing the downhole electromagnetic pump in order to pump fluids in a downhole environment is also provided.

The downhole electromagnetic pump includes a pumping chamber that is provided with a throughbore through which fluid may be pumped. An electrode arrangement is provided in order to produce an electro-hydro-dynamic force on fluids within the pump such that fluid may be pumped through the pump in a desired direction. A method of utilizing the downhole electromagnetic pump in order to pump fluids in a downhole environment is also provided.

A pumping system for use in a well stimulation application includes a pump controlled by a controller, the controller operating to monitor operation of the pump and determine when cavitation is present or imminent in the pump. When cavitation is present, the controller automatically adjusts an operating condition of the pump reduce pump speed or increase a fluid pressure at the pump inlet.

A pumping system for use in a well stimulation application includes a pump controlled by a controller, the controller operating to monitor operation of the pump and determine when cavitation is present or imminent in the pump. When cavitation is present, the controller automatically adjusts an operating condition of the pump reduce pump speed or increase a fluid pressure at the pump inlet.

A hydraulic fracturing system for fracturing a subterranean formation is disclosed. In an embodiment, the system may include a plurality of electric pumps configured to pump fluid into a wellbore associated with a well at a high pressure; at least one turbine generator electrically coupled to the plurality of electric pumps so as to generate electricity for use by the plurality of electric pumps, each turbine generator having at least one air intake channel; and an air chiller system associated with the at least one turbine generator, the air chiller system comprising: a chiller unit configured to chill a fluid; and at least one coil in fluid communication with the chiller unit and positioned adjacent to the at least one air intake channel, wherein the air chiller system is configured to increase a power output of the at least one turbine generator.