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公开(公告)号：US12264667B2
公开(公告)日：2025-04-01
申请号：US17649521
申请日：2022-01-31
Applicant: Caterpillar Inc.
Inventor： Todd Ryan Kabrich , Andy Publes , Mark Francis Grimes , Yuesheng He
Abstract: In some implementations, a controller may monitor, during a ramp up period of a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD), an intake pressure of the fluid pump and a discharge pressure of the fluid pump. The controller may detect, based on monitoring the intake pressure and the discharge pressure, whether the intake pressure satisfies an intake pressure threshold or the discharge pressure satisfies a discharge pressure threshold. The controller may cause, via the VFD, reduction of a torque of the motor based on the intake pressure satisfying the intake pressure threshold or the discharge pressure satisfying the discharge pressure threshold.
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公开(公告)号：US20160252033A1
公开(公告)日：2016-09-01
申请号：US15149290
申请日：2016-05-09
Applicant: Caterpillar Inc.
Inventor： Adam D. Dye , Andy Publes , Arthur L. Gilliam , Dustin K. Fee , Kirti C. Tamhane
CPC classification number: F02D41/1497 , F02D17/02 , F02D41/0087 , F02D41/009 , F02D41/3005 , F02D41/401 , F02D2200/021 , F02D2200/101 , Y02T10/44
Abstract: The disclosure provides a method to operate an engine including a first set of cylinders and a second set of cylinders with the help of an engine control module (ECM). The ECM determines a current engine speed, a current engine load, and a current degree of rotation. If the current engine load is below a threshold load that corresponds to the current engine speed, the ECM selects a cylinder cutout strategy. The ECM initiates the cylinder cutout strategy wherein the fuel supply is cutout alternatively between the first set of cylinders and the second set of cylinders at a predetermined degree of rotation. The fuel injection is modified by a predetermined amount to a set of non-cutout cylinders. The ECM deactivates the cylinder cutout strategy when the current engine load exceeds the threshold load that corresponds to the current engine speed.
Abstract translation: 本公开提供了一种在发动机控制模块（ECM）的帮助下操作包括第一组气缸和第二组气缸的发动机的方法。 ECM确定当前的发动机转速，当前的发动机负荷和当前的旋转度。 如果当前发动机负载低于对应于当前发动机转速的阈值负荷，则ECM选择汽缸切断策略。 ECM启动气缸切断策略，其中燃料供应在预定旋转角度处交替地切割在第一组气缸和第二组气缸之间。 燃料喷射被预定量修改为一组非切口滚筒。 当当前发动机负载超过对应于当前发动机转速的阈值负载时，ECM将停用气缸切断策略。
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公开(公告)号：US12180980B2
公开(公告)日：2024-12-31
申请号：US17819778
申请日：2022-08-15
Applicant: Caterpillar Inc.
Inventor： Yuesheng He , Andy Publes , Mark C. Paul , Mark Francis Grimes
IPC: F04D29/66
Abstract: In some implementations, a controller may monitor, in connection with a fluid pump driven by a motor that is controlled by a variable frequency drive and over a time period, a torque of the motor to obtain torque data, a speed of the motor to obtain speed data, and a pressure of the fluid pump to obtain pressure data. The controller may determine that the fluid pump is associated with a leak of a particular severity level based on the torque data indicating a deviation that satisfies a first threshold, the speed data indicating a deviation that satisfies a second threshold, and the pressure data indicating a deviation that satisfies a third threshold. The controller may perform at least one operation based on the particular severity level of the leak.
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公开(公告)号：US11859480B2
公开(公告)日：2024-01-02
申请号：US17692887
申请日：2022-03-11
Applicant: Caterpillar Inc.
Inventor： Todd R. Kabrich , Andy Publes , Casey A. Otten , Brandon J. Mabe , Perry D. Converse , Jason T. Herlehy
CPC classification number: E21B43/2607 , E21B43/26 , F04B15/02 , F04B23/04 , F04B49/007 , F04B49/022 , F04B49/03 , F04B49/065
Abstract: A method may include monitoring, for two or more well heads of a hydraulic fracturing system, an operation or a state of one or more subsystems of the hydraulic fracturing system. The hydraulic fracturing system may include one or more fracturing rigs, one or more blending equipment, one or more power sources electrically connected to a first subset of the one or more fracturing rigs, or one or more fuel sources fluidly connected to a second subset of the one or more fracturing rigs, and one or more missile valves. The hydraulic fracturing system may further include one or more zipper valves, one or more well head valves, and multiple well heads. The method may further include controlling, based on an operation schedule for the hydraulic fracturing system and based on monitoring the operation or the state, fluid pressures at the two or more well heads for continuous pumping.
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公开(公告)号：US12129845B2
公开(公告)日：2024-10-29
申请号：US17649525
申请日：2022-01-31
Applicant: Caterpillar Inc.
Inventor： Mark Francis Grimes , Andy Publes , Mark C. Paul
CPC classification number: F04B49/20 , E21B43/26 , E21B43/2607 , F04B17/03 , F04B49/065 , F04B2203/0204 , F04B2203/0207 , F04B2203/0209 , F04B2205/04
Abstract: In some implementations, a controller may obtain a setting for a maximum discharge pressure associated with a fluid pump that is to be allowed during a hydraulic fracturing operation. The fluid pump may be driven by a motor that is controlled by a variable frequency drive (VFD). The controller may determine a maximum torque for the motor that achieves the maximum discharge pressure. The controller may cause, via the VFD, adjustment to a speed of the motor to maintain a torque of the motor at or below the maximum torque for the motor.
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Patent Agency Ranking
公开(公告)号：US11753911B1
公开(公告)日：2023-09-12
申请号：US17692905
申请日：2022-03-11
Applicant: Caterpillar Inc.
Inventor： Todd R. Kabrich , Andy Publes , Casey A. Otten , Brandon J. Mabe , Perry D. Converse , Jason T. Herlehy
CPC classification number: E21B43/12 , E21B34/02 , E21B43/2607 , E21B47/00
Abstract: A method may include monitoring, for a well head of a hydraulic fracturing system, an operation or a state of one or more subsystems of the hydraulic fracturing system. The hydraulic fracturing system may include one or more fracturing rigs, one or more blending equipment, and one or more power sources electrically connected to a first subset of the one or more fracturing rigs, or one or more fuel sources fluidly connected to a second subset of the one or more fracturing rigs. The hydraulic fracturing system may further include one or more missile valves, one or more zipper valves, one or more well head valves, and one or more well heads. The method may further include controlling, based on an operation schedule for the hydraulic fracturing system and based on monitoring the operation or the state, the state or equipment changes.
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公开(公告)号：US12203459B2
公开(公告)日：2025-01-21
申请号：US17813575
申请日：2022-07-19
Applicant: Caterpillar Inc.
Inventor： Lucas J. Peterson , David Alexandru Voiculescu , Andy Publes , Mark Francis Grimes
Abstract: In some implementations, a controller may obtain an indication of a first crank angle associated with a first pump, of a dual-pump single-power source system, that is mechanically connected to a power source of the dual-pump single-power source system via a first clutch. The controller may obtain an indication of a second crank angle associated with a second pump, of the dual-pump single-power source system, that is mechanically connected to the power source via a second clutch. The controller may determine that a difference between the first crank angle and the second crank angle is outside of a tolerance of a crank angle difference value. The controller may modulate a fluid pressure associated with at least one of the first clutch or the second clutch to cause the difference between the first crank angle and the second crank angle to be within the tolerance of the crank angle difference value.
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公开(公告)号：US12049801B2
公开(公告)日：2024-07-30
申请号：US17692931
申请日：2022-03-11
Applicant: Caterpillar Inc.
Inventor： Todd R. Kabrich , Andy Publes , Casey A. Otten , Brandon J. Mabe , Perry D. Converse , Jason T. Herlehy , Joseph C. Bufkin
CPC classification number: E21B34/025 , E21B43/2607 , E21B47/06
Abstract: A method may include monitoring an operation or a state of one or more subsystems of a hydraulic fracturing system. The hydraulic fracturing system may include one or more fracturing rigs, one or more blending equipment, and one or more power sources electrically connected to a first subset of the one or more fracturing rigs, or one or more fuel sources fluidly connected to a second subset of the one or more fracturing rigs. The hydraulic fracturing system may further include one or more missile valves, one or more zipper piping and zipper valve sets, one or more well head valves, and one or more well heads. The method may further include controlling, based on monitoring the operation or the state, the one or more subsystems within operating limits or based on operating expectations to cause or prevent an occurrence of one or more well integrity-related events.
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公开(公告)号：US11746635B1
公开(公告)日：2023-09-05
申请号：US17692948
申请日：2022-03-11
Applicant: Caterpillar Inc.
Inventor： Todd R. Kabrich , Andy Publes , Casey A. Otten , Brandon J. Mabe , Perry D. Converse , Jason T. Herlehy , Joseph C. Bufkin
CPC classification number: E21B43/2607 , F04B49/007 , F04B49/065 , E21B2200/20 , E21B2200/22
Abstract: A method may include receiving information related to operation or a configuration of a hydraulic fracturing system, The hydraulic fracturing system may include one or more fracturing rigs, one or more blending equipment, and one or more power sources electrically connected to a first subset of the one or more fracturing rigs, or one or more fuel sources fluidly connected to a second subset of the one or more fracturing rigs. The hydraulic fracturing system may further include one or more missile valves, one or more zipper valves, one or more well head valves, and one or more well heads. The method may further include optimizing the operation of one or more subsystems of the hydraulic fracturing system using a particle swarm algorithm. The method may further include outputting one or more control signals to the one or more subsystems based on optimizing the operation.
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公开(公告)号：US12104587B2
公开(公告)日：2024-10-01
申请号：US17649531
申请日：2022-01-31
Applicant: Caterpillar Inc.
Inventor： Andy Publes , Mark C. Paul , Mark Francis Grimes , Todd Ryan Kabrich , Riadh Benguedda
CPC classification number: F04B49/06 , E21B43/2607 , F04B51/00
Abstract: In some implementations, a controller may obtain a setting for a target discharge pressure associated with a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD). The target discharge pressure may be for use in a pressure test of a system that includes the fluid pump. The controller may determine a target torque for the motor that achieves the target discharge pressure. The controller may cause, via the VFD and in connection with the pressure test, adjustment to a speed of the motor to achieve the target torque for the motor.
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