Patent ID: 11859482
Assignee: BJ ENERGY SOLUTIONS, LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC E  F  H | IPC E  F  H

Claim 14:
15. A method of fracturing a well, the method comprising:
providing a hydraulic fracturing unit, the hydraulic fracturing unit comprising:
a chassis,
auxiliary equipment located onboard the chassis,
a pump connected to the chassis and configured to pump a fracturing fluid, and
a powertrain connected to the chassis and configured to power the pump;

arranging an electric power arrangement to power the auxiliary equipment, the electric power arrangement comprising an engine-generator set configured to generate electric power;
arranging an electric power network to deliver electric power generated by the electric power arrangement to the auxiliary equipment, the electric power network comprising an electric bus connected to the engine-generator set, and the electric power network configured to connect to and deliver power to the auxiliary equipment from one or more of a utility power grid, a battery bank, or another engine-generator set responsive to a failure or fault of the engine-generator set of the electric power arrangement;
connecting a manifold to the pump, the manifold being configured to deliver fracturing fluid from the pump to the well;
operating the powertrain to power the pump to pump the fracturing fluid; and
operating the electric power arrangement to power the auxiliary equipment.