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US 11,598,324 B2Granted
Electric drive pump for well stimulation
AssigneeST9 Gas and Oil, LLC
InventorChris Buckley
Life of this patent
Estimating the term…
Abstract
An electric drive pump system includes a power end and a detachable transmission assembly. The transmission assembly is mounted to the power end and is configured to provide rotational power to the power end through a plurality of electric motors. The plurality of electric motors use a gearbox to drive an output spline that engages the power end. A control module is used to regulate the performance characteristics of the plurality of electric motors. A temperature regulation assembly is configured to regulate the temperature of the transmission assembly and the power end.
Claims21
A hydraulic fracturing pump system, comprising:
- a trailer platform having an upper surface and supported on a plurality of wheels;
- a frame supported on the trailer platform and extending vertically upward above the upper surface of the trailer platform, the frame including a plurality of spaced apart support members fixed to the trailer platform;
- an electric drive pump system supported on the upper surface of the trailer platform within the frame, the electric drive pump system including a fluid end, a power end operably coupled to the fluid end to drive the fluid end, and a plurality of separate electric motors operably coupled to the power end to drive the power end, wherein the power end has a driveshaft extending along a driveshaft axis and the plurality of electric motors are arranged radially about the driveshaft axis but spaced radially outward apart from the driveshaft axis;
- a control unit supported on the trailer platform, the control unit operable to regulate the operation of the electric motors;
- and
- one or more movable enclosure panels coupled to the frame and movable relative to the frame to enclose at least a portion of the electric drive pump system within the frame, wherein the one or more enclosure panels includes an upper enclosure panel comprising a radiator pack, the upper enclosure panel coupled to an upper support member of the frame, wherein the radiator pack includes one or more fans operable to remove heat from the electric drive pump system.
3 more elements
A hydraulic fracturing pump system, comprising:
- a platform elevated above a ground surface, the platform having an upper surface;
- an electric drive pump system supported on the upper surface of the platform within the frame, the electric drive pump system including a fluid end, a power end operably coupled to the fluid end to drive the fluid end, and a plurality of separate electric motors operably coupled to the power end to drive the power end, wherein the power end has a driveshaft extending along a driveshaft axis and the plurality of electric motors are arranged radially so as to be radially spaced apart from the driveshaft axis;
- a control unit supported on the upper surface of the platform, the control unit including at least one variable frequency drive operably coupled to the plurality of electric motors to regulate the operation of the plurality of electric motors;
- and
- one or more movable enclosure panels coupled to the platform and movable relative to the platform to enclose or cover at least a portion of the platform, wherein the one or more enclosure panels includes an enclosure panel comprising a radiator pack, and wherein the radiator pack includes one or more fans operable to remove heat from the electric drive pump system.
2 more elements
A hydraulic fracturing pump system, comprising:
- an electric drive pump system having a fluid end, a power end operably coupled to the fluid end to drive the fluid end, the power end including a crank shaft;
- at least two axial flux electric motors coupled to the crank shaft;
- a control module operably coupled to the axial flux electric motors to individually control the at least two axial flux electric motors;
- a trailer or skid platform on which the electric drive pump system is mounted;
- and
- one or more movable enclosure panels coupled to the platform and movable relative to the platform to cover at least a portion of the platform, wherein the one or more enclosure panels includes an enclosure panel comprising a radiator pack, and wherein the radiator pack includes one or more fans operable to remove heat from the electric drive pump system.
3 more elements
Dependencies are inferred from the claim text.