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.

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.

A pump includes multiple piston chambers each including a piston, an inlet valve and an outlet valve. The pump further includes a first input conduit coupled to the inlet valve of each of a first subset of the piston chambers, a second input conduit coupled to the inlet valve of each of a second subset of the piston chambers, and one or more output conduit coupled to the outlet valve of each of the piston chambers. A mixed fluid stream may be formed by supplying a first fluid to the first subset of piston chambers, supplying a second fluid to a second subset of piston chambers, operating the pump to discharge the first fluid through the first subset of piston chambers and discharge the second fluid through the second subset of piston chambers, and combining the first fluid discharge and the second fluid discharge to form the mixed fluid stream.

A pump includes multiple piston chambers each including a piston, an inlet valve and an outlet valve. The pump further includes a first input conduit coupled to the inlet valve of each of a first subset of the piston chambers, a second input conduit coupled to the inlet valve of each of a second subset of the piston chambers, and one or more output conduit coupled to the outlet valve of each of the piston chambers. A mixed fluid stream may be formed by supplying a first fluid to the first subset of piston chambers, supplying a second fluid to a second subset of piston chambers, operating the pump to discharge the first fluid through the first subset of piston chambers and discharge the second fluid through the second subset of piston chambers, and combining the first fluid discharge and the second fluid discharge to form the mixed fluid stream.

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. The treatment fluid can comprise a water-based fracturing fluid or a waterless liquefied petroleum gas (LPG) fracturing fluid.

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. The treatment fluid can comprise a water-based fracturing fluid or a waterless liquefied petroleum gas (LPG) fracturing fluid.

A double-headed piston type swash plate compressor includes a rotation shaft, a housing, a swash plate, two cylinder bores, a double-headed piston, and two shoes. The double-headed piston includes two shoe holders, a neck, two heads, and two coupling portions. At least one of the two coupling portions includes a load receiving portion. The load receiving portion is configured to receive bending load that is applied from the swash plate to the double-headed piston and acts toward an inner side in the radial direction. The load receiving portion is separated from the wall surface of the cylinder bore when load applied to the double-headed piston is less than a specific threshold value. The load receiving portion abuts against the inner wall of the cylinder bore and receives the bending load when the load applied to the double-headed piston is greater than the specific threshold value.

High pressure pump systems with reduced pressure ripple for use with waterjet systems and other systems are described herein. A pump system configured in accordance with a particular embodiment includes four reciprocating members operably coupled to a crankshaft at 90 degree phase angles. The reciprocating members can include plungers operably disposed in corresponding cylinders and configured to compress fluid (e.g., water) in the cylinders to pressures suitable for waterjet processing, such as pressures exceeding 30,000 psi.

High pressure pump systems with reduced pressure ripple for use with waterjet systems and other systems are described herein. A pump system configured in accordance with a particular embodiment includes four reciprocating members operably coupled to a crankshaft at 90 degree phase angles. The reciprocating members can include plungers operably disposed in corresponding cylinders and configured to compress fluid (e.g., water) in the cylinders to pressures suitable for waterjet processing, such as pressures exceeding 30,000 psi.

A lease automatic custody transfer (LACT) system includes a pump assembly and meter system. The pump assembly is configured to pump a volume of fluid out of a storage container into a conduit. The pump assembly causes a pulsating flow of the volume of fluid through the conduit. The meter system is coupled to the conduit and includes a meter device and a processing system. The meter device is configured to obtain a plurality of measurements corresponding to the volume of fluid flowing through the conduit. The processing system is communicatively coupled to the meter device and configured to determine a flow parameter value based on the plurality of measurements.