Mobile, modular, electrically powered system for use in fracturing underground formations
First Claim
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1. A system for delivering pressurized fluid to a wellbore to be fractured, the system comprising:
- a gas-powered turbine generator that generates electric power at a site containing the wellbore;
an electric motor electrically connected to the turbine generator;
a first electric blender unit for blending a first fluid received from a first fluid source manifold with a first fluid additive from a first fluid additive source to produce a first fracturing fluid that is discharged to a first outlet manifold;
a second electric blender unit for blending a second fluid received from a second fluid source manifold with a second fluid additive from a second fluid additive source to produce a second fracturing fluid that is discharged to a second outlet manifold; and
a fracturing fluid pump configured to be driven by the electric motor and to pump the first fracturing fluid and the second fracturing fluid into a conduit in communication with the wellbore, wherein the first and second electric blender units are configured to operate simultaneously, and the electric motor, the fracturing fluid pump, the first electric blender unit, and the second electric blender unit are located on a trailer to be transported to the well site.
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Abstract
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.
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Citations
21 Claims
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1. A system for delivering pressurized fluid to a wellbore to be fractured, the system comprising:
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a gas-powered turbine generator that generates electric power at a site containing the wellbore; an electric motor electrically connected to the turbine generator; a first electric blender unit for blending a first fluid received from a first fluid source manifold with a first fluid additive from a first fluid additive source to produce a first fracturing fluid that is discharged to a first outlet manifold; a second electric blender unit for blending a second fluid received from a second fluid source manifold with a second fluid additive from a second fluid additive source to produce a second fracturing fluid that is discharged to a second outlet manifold; and a fracturing fluid pump configured to be driven by the electric motor and to pump the first fracturing fluid and the second fracturing fluid into a conduit in communication with the wellbore, wherein the first and second electric blender units are configured to operate simultaneously, and the electric motor, the fracturing fluid pump, the first electric blender unit, and the second electric blender unit are located on a trailer to be transported to the well site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system of delivering pressurized fluid to a wellbore to be fractured, the system comprising
a gas-powered turbine generator that generates electric power at a site containing the wellbore; -
an electric fracturing motor electrically connected to the turbine generator; a first electric blender unit electrically connected to the turbine generator, the first electric blender unit comprising; a first blender tub; a first electric motor for delivering a first fluid received from a first fluid source manifold to the first blender tub; a second electric motor for delivering a fluid additive from a fluid additive source to the first blender tub, wherein when the fluid additive is sand, the second electric motor can deliver approximately 15 t/min of sand to the first blender tub; and a third electric motor for blending the first fluid with the fluid additive in the first blender tub to produce a fracturing fluid; and a fracturing fluid pump configured to be driven by the electric fracturing motor and to pump the fracturing fluid into a conduit in communication with the wellbore. - View Dependent Claims (15, 16)
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17. A system for delivering pressurized fluid to a wellbore to be fractured, the system comprising:
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a gas-powered turbine generator that generates electric power at a site containing the wellbore; an electric motor electrically connected to the turbine generator; a first electric blender unit for blending a first fluid received from a first fluid source manifold with a first fluid additive from a first fluid additive source to produce a first fracturing fluid that is discharged to a first outlet manifold; a second electric blender unit for blending a second fluid received from a second fluid source manifold with a second fluid additive from a second fluid additive source to produce a second fracturing fluid that is discharged to a second outlet manifold; a first inlet crossing line coupled to the first fluid source manifold and the second fluid source manifold such that unblended fracturing fluid that enters the first fluid source manifold and the second fluid source manifold is capable of being delivered to both the first electric blender unit and the second electric blender unit; and
a first outlet crossing line coupled to the first outlet manifold and the second outlet manifold such that the first fracturing fluid and the second fracturing fluid are capable of being delivered to both the first outlet manifold and the second outlet manifold; anda fracturing fluid pump configured to be driven by the electric motor and to pump the first fracturing fluid and the second fracturing fluid into a conduit in communication with the wellbore, wherein the first and second electric blender units are configured to operate simultaneously. - View Dependent Claims (18, 19)
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20. A system for delivering pressurized fluid to a wellbore to be fractured, the system comprising:
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a gas-powered turbine generator that generates electric power at a site containing the wellbore; an electric motor electrically connected to the turbine generator; a first electric blender unit for blending a first fluid received from a first fluid source manifold with a first fluid additive from a first fluid additive source to produce a first fracturing fluid that is discharged to a first outlet manifold; a second electric blender unit for blending a second fluid received from a second fluid source manifold with a second fluid additive from a second fluid additive source to produce a second fracturing fluid that is discharged to a second outlet manifold, wherein the first fluid received from the first fluid source manifold is configured to provide a separate fluid stream to the first electric blender unit and separate fluid stream to the second electric blender unit; and a fracturing fluid pump configured to be driven by the electric motor and to pump the first fracturing fluid and the second fracturing fluid into a conduit in communication with the wellbore, wherein the first and second electric blender units are configured to operate simultaneously. - View Dependent Claims (21)
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Specification