# US 2021/0079902 A1 · Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0079902 A1 - Document ID: US20210079902A1 - Status: Published application - Kind: A1 - Application number: 16/946,079 - Filed: 2020-06-05 - Published: 2021-03-18 - Earliest claimed: 2019-09-13 - Assignees: BJ Services Company - Applicants: BJ Energy Solutions, LLC - Inventors: Tony Yeung; Ricardo Rodriguez-Ramon; Joseph Foster; Nicholas Tew - Web page: https://patentgrep.com/patent/US20210079902A1 ## CPC - F04B 17/05: driven by internal-combustion engines - F04B 9/02: the means being mechanical - F04B 9/10: the fluid being liquid - F04B 15/02: the fluids being viscous or non-homogeneous - F04B 17/03: driven by electric motors - F04B 23/04: Combinations of two or more pumps - F04B 47/02: the driving mechanisms being situated at ground level (F04B47/12 takes precedence) - F04B 53/08: Cooling; Heating; Preventing freezing - F04B 53/18: Lubricating - H02J 9/00: Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting - H02K 7/1823: {structurally associated with turbines or similar engines} - E21B 43/2607: {Surface equipment specially adapted for fracturing operations} - F01M 1/02: using lubricating pumps (pumps in general F04; lubricating pumps per se F16N) - F01M 1/12: Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 - F01M 2001/0253: {characterised by the pump driving means} - F01P 3/20: Cooling circuits not specific to a single part of engine or machine (F01P3/22 takes precedence) - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING - F01P: COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES (arrangements in connection with cooling of propulsion units in vehicles B60K11/00; heat-transfer, heat-exchange or heat-storage materials C09K5/00; {cooling of gas-turbine engines F02C7/12}; heat exchange in general, radiators F28) ## Abstract Embodiments of systems and methods disclosed provide a hydraulic fracturing unit that includes a reciprocating plunger pump configured to pump a fracturing fluid and a powertrain configured to power the reciprocating plunger pump. The powertrain includes a prime mover and a drivetrain, the prime mover including a gas turbine engine. The hydraulic fracturing unit also includes auxiliary equipment configured to support operation of the hydraulic fracturing unit including the reciprocating plunger pump and the powertrain. A power system is configured to power the auxiliary equipment. The power system includes a power source and a power network. The power source is configured to generate power for the auxiliary equipment. The power network is coupled to the power source and the auxiliary equipment, and configured to deliver the power generated by the power source to the auxiliary equipment. Associated systems including a plurality of hydraulic fracturing units are also provided. ## Claims ### Claim at position 1 -15. (canceled) ### Claim 16 A system for fracturing a well, the system comprising: one or more hydraulic fracturing units, each hydraulic fracturing unit comprising: a chassis; a reciprocating plunger pump connected to the chassis and configured to pump a fracturing fluid; a powertrain connected to the chassis and configured to power the reciprocating plunger pump, the powertrain including a direct drive gas turbine engine and a drivetrain, the direct drive gas turbine engine operable using of two or more different types of fuel; and auxiliary equipment located onboard the chassis, the auxiliary equipment driven by hydraulic motors to support operation of the hydraulic fracturing unit including the reciprocating plunger pump and the powertrain; and one or more hydraulic power arrangements configured to power the auxiliary equipment, each hydraulic power arrangement comprising: a hydraulic power source including an electric motor configured to drive a plurality of pumps via a hydraulic pump drive to generate hydraulic power, the electric motor powered by shore power from an external source of electric power; and a hydraulic power network coupled to the hydraulic power source and the hydraulic motors, the hydraulic power network configured to deliver the hydraulic power generated by the hydraulic power source to the hydraulic motors to drive the auxiliary equipment. ### Claim 17 (depends on 16) The system of claim 16, wherein the one or more hydraulic fracturing units are a plurality of hydraulic fracturing units, and the one or more hydraulic power arrangements are a plurality of hydraulic power arrangements each of which is connected to the chassis of a respective one of the plurality of hydraulic fracturing units. ### Claim 18 (depends on 17) The system of claim 17, wherein the electric motor of the hydraulic power source is powered by shore power from an external source of electric power that is connected to respective hydraulic power sources of the plurality of hydraulic fracturing units. ### Claim at position 5 -26. (canceled) ### Claim 27 A method for fracturing a well, the method comprising: arranging one or more hydraulic fracturing units, each hydraulic fracturing unit comprising: a chassis; a reciprocating plunger pump connected to the chassis and configured to pump a fracturing fluid; a powertrain connected to the chassis and configured to power the reciprocating plunger pump, the powertrain including a direct drive gas turbine engine and a drivetrain, the direct drive gas turbine engine operable using of two or more different types of fuel; and auxiliary equipment located onboard the chassis, the auxiliary equipment driven by hydraulic motors to support operation of the hydraulic fracturing unit including the reciprocating plunger pump and the powertrain; arranging one or more hydraulic power arrangements power the auxiliary equipment, each hydraulic power arrangement comprising: a hydraulic power source including an electric motor configured to drive a plurality of pumps via a hydraulic pump drive to generate hydraulic power, the electric motor powered by shore power from an external source of electric power; and a hydraulic power network coupled to the hydraulic power source and the hydraulic motors, the hydraulic power network configured to deliver the hydraulic power generated by the hydraulic power source to the hydraulic motors to drive the auxiliary equipment; and operating the powertrain to power the reciprocating plunger pump to pump the fracturing fluid, and the hydraulic power arrangement to power the auxiliary equipment. ### Claim 28 (depends on 27) The method of claim 27, wherein arranging the one or more hydraulic fracturing units, and arranging the one or more hydraulic power arrangements, includes arranging a plurality of hydraulic fracturing units and a plurality of hydraulic power arrangements each of which is connected to the chassis of a respective one of the plurality of hydraulic fracturing units. ### Claim 29 (depends on 28) The method of claim 28, wherein operating the hydraulic power arrangement includes powering the electric motor of the hydraulic power source by shore power from an external source of electric power that is connected to respective hydraulic power sources of the plurality of hydraulic fracturing units.