WO2023116294A1 - Procédé, système et dispositif de détection de pompe de fracturation, et support de stockage - Google Patents

Procédé, système et dispositif de détection de pompe de fracturation, et support de stockage Download PDF

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Publication number
WO2023116294A1
WO2023116294A1 PCT/CN2022/132837 CN2022132837W WO2023116294A1 WO 2023116294 A1 WO2023116294 A1 WO 2023116294A1 CN 2022132837 W CN2022132837 W CN 2022132837W WO 2023116294 A1 WO2023116294 A1 WO 2023116294A1
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information
fracturing pump
pump
tie rod
fracturing
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PCT/CN2022/132837
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English (en)
Chinese (zh)
Inventor
李海龙
孙建韬
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烟台杰瑞石油服务集团股份有限公司
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Publication of WO2023116294A1 publication Critical patent/WO2023116294A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures

Definitions

  • the present disclosure generally relates to the technical field of fracturing equipment, and more specifically relates to a fracturing pump detection method, system, equipment and storage medium.
  • the fracturing operation mainly uses a fracturing pump to transport the liquid mixed with sand into the formation through extremely high pressure to improve the flow conditions of the crude oil in the oil well, making the crude oil in the oil well flow more easily and facilitate extraction.
  • the liquid mixed with sand in the fracturing pump is prone to strong erosion on the fracturing pump body and the high and low pressure sealing parts, which in turn causes the fracturing pump to be prone to puncture leakage, jetting, bursting, etc. during use, seriously affecting on-site operations personnel safety. Therefore, when the fracturing pump is working, it is necessary to monitor and diagnose the working state of the high-pressure plunger pump of the fracturing pump.
  • the present disclosure provides a fracturing pump detection method, which includes:
  • the detection result of the fracturing pump is determined according to the liquid pressure information in the pump chamber and the plunger phase information corresponding to the force information of the pull rod.
  • the power end sensor includes a stress sensor installed on the tie rod of the fracturing pump, and the force information of the tie rod of the fracturing pump is detected through the power end sensor of the fracturing pump, include:
  • the force information of the tie rod is determined.
  • the power end sensor includes a strain sensor installed on the tie rod of the fracturing pump, and the force information of the tie rod of the fracturing pump is detected through the power end sensor of the fracturing pump, include:
  • the force information of the tie rod is determined based on the strain information of the tie rod end, the elastic modulus information of the preset tie rod material corresponding to the fracturing pump, and the preset cross-sectional area information of the tie rod end corresponding to the fracturing pump.
  • the determination of the pressure information of the pump cavity of the fracturing pump according to the force information of the tie rod includes:
  • the calculation process is performed based on the cross-sectional area information of the piston and the force information of the pull rod to obtain the liquid pressure information of the pump cavity of the fracturing pump.
  • the determination of the detection result of the fracturing pump according to the liquid pressure information in the pump chamber and the plunger phase information corresponding to the force information of the pull rod includes:
  • liquid pressure information in the pump chamber matches the plunger phase information, then determine the liquid pressure information of the fracturing pump according to the liquid pressure information in the pump chamber and the plunger phase information;
  • the determining the liquid pressure information of the fracturing pump according to the liquid pressure information of the pump chamber and the phase information of the plunger includes:
  • the plunger phase information is the first plunger phase information, then determine the first liquid pressure information of the fracturing pump according to the pump cavity liquid pressure information and the first plunger phase information;
  • the second liquid pressure information of the fracturing pump is determined according to the pump cavity liquid pressure information and the second plunger phase information.
  • the fracturing pump after generating the abnormal detection result of the fracturing pump, it also includes:
  • generating the abnormality detection result of the fracturing pump includes: if the first liquid pressure information does not meet the preset first a pressure information threshold, the first detection result of the fracturing pump generated based on the first fluid pressure information is abnormal; if the second fluid pressure information does not meet the preset second pressure information threshold, based on the The second detection result of the fracturing pump generated by the second hydraulic pressure information is abnormal.
  • fracturing pump detection system which includes:
  • the tie rod force detection module is configured to detect the force information of the tie rod of the fracturing pump through the power end sensor of the fracturing pump;
  • a pump chamber liquid pressure information determination module configured to determine the pump chamber liquid pressure information of the fracturing pump according to the force information of the tie rod
  • the detection result determination module is configured to determine the detection result of the fracturing pump according to the liquid pressure information of the pump chamber and the plunger phase information corresponding to the force information of the pull rod.
  • the present disclosure provides a fracturing pump detection system, which includes a processor, a communication interface, a memory, and a communication bus, wherein, the processor, the communication interface, and the memory complete mutual communication through the communication bus.
  • a memory configured to store a computer program
  • the processor is configured to implement the fracturing pump detection method described in the present disclosure when executing the program stored in the memory.
  • the present disclosure provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the fracturing pump detection method described in the present disclosure is implemented.
  • the present disclosure detects the force information of the tie rod of the fracturing pump through the power end sensor of the fracturing pump, determines the pressure information of the pump chamber liquid of the fracturing pump according to the force information of the tie rod, and determines the pressure information of the pump cavity of the fracturing pump according to the force information of the pump chamber.
  • the plunger phase information corresponding to the pressure information and the force information of the tie rod determines the detection result of the fracturing pump, cancels the process of traditional vibration sensor intermediate filtering and algorithm feature recognition, and solves the problem that the existing fracturing pump detection method uses traditional vibration Accelerators collect signals, so intermediate filtering and algorithmic feature recognition are required, which leads to the problem of complicated data analysis steps. At the same time, it avoids the impact of the replacement of consumable parts at the fluid end on the sensor, and improves the detection accuracy.
  • FIG. 1 is a schematic flowchart of a fracturing pump detection method provided by an embodiment of the present disclosure
  • Fig. 2 is a schematic structural diagram of a fracturing pump provided by an embodiment of the present disclosure
  • Fig. 3 is a schematic flowchart of steps of a fracturing pump detection method provided by an optional embodiment of the present disclosure
  • Fig. 4 is a schematic diagram of a fracturing pump detection system provided by an embodiment of the present disclosure
  • Fig. 5 is a structural block diagram of a fracturing pump detection system provided by an embodiment of the present disclosure.
  • Fig. 6 is a schematic structural diagram of a fracturing pump detection device provided by an alternative embodiment of the present disclosure.
  • the detection sensor is mainly installed on the hydraulic end of the fracturing pump, for example, at least one sensor is installed on the upper or lower surface of the hydraulic end of the fracturing pump.
  • the high-pressure and low-pressure valves inside the hydraulic end of the fracturing pump are vulnerable parts and often need to be replaced. When replacing, the upper and lower ends of the hydraulic end of the fracturing pump need to be removed. , because the sensor installed on the liquid end is easy to be knocked, resulting in damage to the sensor, increasing the cost of repair or replacement of the sensor.
  • One of the core concepts of the embodiments of the present disclosure is to provide a fracturing pump detection method.
  • the force information of the tie rod of the fracturing pump is detected, so as to determine the pressure of the fracturing pump according to the force information of the tie rod.
  • the detection result of the pump realizes the real-time detection of the fracturing pump, cancels the process of intermediate filtering and algorithm feature recognition of the traditional vibration sensor, and avoids the influence of the replacement of the vulnerable parts of the hydraulic end on the sensor, and improves the detection accuracy.
  • FIG. 1 is a schematic flow chart of a fracturing pump detection method provided in the present disclosure. As shown in Figure 1, the fracturing pump detection method provided by the present disclosure may include the following steps:
  • Step 110 detecting the stress information of the tie rod of the fracturing pump through the power end sensor of the fracturing pump;
  • Step 120 determining the fluid pressure information of the pump chamber of the fracturing pump according to the force information of the tie rod.
  • Step 130 Determine the detection result of the fracturing pump according to the liquid pressure information in the pump chamber and the plunger phase information corresponding to the force information on the pull rod.
  • the power end of the fracturing pump may refer to the end where the pull rod of the fracturing pump is connected to the plunger, and a sensor may be installed on the pull rod of the fracturing pump, such as a diaphragm type stress or strain sensor.
  • a sensor may be installed on the pull rod of the fracturing pump, such as a diaphragm type stress or strain sensor.
  • a plurality of stress or strain sensors can be respectively installed on the plurality of pull rods on the fracturing pump, and the stress or strain sensors can be installed on the end of the pull rod corresponding to each pump chamber of the fracturing pump close to the plunger,
  • the stress or strain sensor can collect the deformation data of the tie rod, so that the deformation data of the tie rod can be converted into stress or strain information.
  • the push force or pull force on the pull rod can be obtained, for example, the push force on the pull rod when it is stretching out or the pull force on the pull rod when it is retracting can be obtained.
  • the stress or strain sensor is used to monitor the state data of the tie rod, the stress/strain information obtained is more accurate, the stress or strain signal is more stable, and it is not easily affected by other components, vibration, temperature, etc., and the signal capture High precision.
  • the fluid pressure information of the pump chamber of the fracturing pump can be determined according to the force information of the tie rod.
  • the pull or thrust on the pull rod can be determined according to the force information on the pull rod, and the cross-sectional area of the fracturing pump plunger and the pull or push on the pull rod can be calculated to obtain the pump chamber liquid corresponding to the pull rod of the fracturing pump pressure information.
  • unique IP addresses can be set for the stress or strain sensors installed in the tie rods.
  • a group of stress or strain sensors can be installed at the horizontal and vertical positions of the tie rods respectively, and the two sets of stress or strain The sensor is set with a unique IP address.
  • it can be identified which sensor the collected stress or strain information belongs to, and the tie rod and installation position of the sensor can be identified, so that the obtained liquid pressure information of the pump chamber of the fracturing pump is more accurate .
  • the stress/strain information collected by the stress or strain sensor in the embodiment of the present disclosure can be directly converted into the liquid pressure information of the pump chamber without special algorithm identification and filtering, which simplifies the data analysis steps and improves the signal processing efficiency. Feedback of fracturing pump failures is more timely.
  • the plunger phase information of the fracturing pump can be determined according to the extension or retraction movement of the pull rod, so that the detection of the fracturing pump can be determined based on the plunger phase information and the liquid pressure information in the pump chamber. result.
  • the plunger phase information of the fracturing pump can be obtained. If the pull rod is currently extending, the pressure information of the fluid discharged from the fracturing pump can be determined based on the phase information of the plunger and the fluid pressure information in the pump chamber.
  • the suction fluid pressure information of the fracturing pump can be determined based on the plunger phase information and the fluid pressure information in the pump chamber. Therefore, the detection result of the fracturing pump can be determined according to the pressure information of the discharge liquid of the fracturing pump and the pressure information of the suction liquid of the fracturing pump.
  • the structural diagram of the fracturing pump 200 the tie rod 1 can be connected to the plunger 3, and the stress or strain sensor 2 can be installed on the corresponding tie rod of the fracturing pump chamber close to the plunger. one end.
  • the installation direction of the stress or strain sensor can be the axial direction of the tie rod, and a group of sensors can be respectively installed in the horizontal and vertical directions of the tie rod to collect the stress or strain information in the horizontal and vertical directions of the tie rod respectively , and the force information of the tie rod can be determined according to the collected stress or strain information, and then the liquid pressure information of the pump cavity of the fracturing pump can be determined according to the force information of the tie rod.
  • the thrust of the pull rod when the pull rod is extending, the thrust of the pull rod can be determined according to the stress or strain information, and the thrust of the pull rod can be used as the force information of the pull rod, and then the pressure of the fracturing pump’s discharge liquid can be determined based on the force information of the pull rod Information; when the pull rod is retracting, the tension on the pull rod can be determined according to the stress or strain information, and the tension on the pull rod can be used as the force information of the pull rod, and then the suction liquid of the fracturing pump can be determined according to the force information of the pull rod pressure information.
  • At least one discharge pressure sensor 4 can also be installed at the high-pressure outlet end of the fracturing pump to collect pressure data at the high-pressure outlet end of the fracturing pump; at least one suction pressure sensor 5 can be installed at the low-pressure outlet end of the fracturing pump to collect pressure data. Pressure data at the low-pressure outlet of the split pump.
  • the pressure information of the fracturing pump’s drainage fluid can be compared with the collected pressure data at the high-pressure outlet end of the fracturing pump, so that the pressure can be determined.
  • the pressure information of the suction liquid of the fracturing pump can be compared with the collected pressure data at the low-pressure outlet end of the fracturing pump, so that Confirmation of frac pump test results.
  • the pull rod during the reciprocating movement of the pull rod to extend and retract, when the pull rod is extended, the pull rod applies thrust to the plunger, at this time, the volume inside the fracturing pump decreases, and the fracturing pump pumps When the pull rod retracts, the pull rod exerts a pulling force on the plunger. At this time, the internal volume of the fracturing pump increases, and the pump cavity of the fracturing pump absorbs liquid.
  • the stress or strain direction corresponding to the stress or strain information can be determined based on the stress or strain information, so that it can be determined whether the tie rod is in the extended state or in the In the retracted state, the plunger phase information can be determined according to the extended or retracted state data of the pull rod.
  • the special failure mode may be that the pump chamber of the fracturing pump only has abnormal fluid discharge or only abnormal liquid suction. The abnormal data is not obvious, so the abnormal discharge or suction may not be detected immediately, but the plunger phase information can timely and accurately determine the special failure, which greatly enhances the accuracy of fracturing pump monitoring.
  • the present disclosure detects the force information of the tie rod of the fracturing pump through the power end sensor of the fracturing pump, determines the pressure information of the pump chamber liquid of the fracturing pump according to the force information of the tie rod, and determines the pressure information of the pump cavity of the fracturing pump according to the force information of the pump chamber.
  • the plunger phase information corresponding to the pressure information and the force information of the tie rod determines the detection result of the fracturing pump, cancels the process of traditional vibration sensor intermediate filtering and algorithm feature recognition, and solves the problem that the existing fracturing pump detection method uses traditional vibration Accelerators collect signals, so intermediate filtering and algorithmic feature recognition are required, which leads to the problem of complicated data analysis steps. At the same time, it avoids the impact of the replacement of consumable parts at the fluid end on the sensor, and improves the detection accuracy.
  • FIG. 3 it shows a schematic flowchart of the steps of a fracturing pump detection method provided by an alternative embodiment of the present disclosure.
  • the fracturing pump detection method may include the following steps:
  • Step 310 detecting the force information of the tie rod of the fracturing pump through the power end sensor of the fracturing pump;
  • Step 320 according to the force information of the pull rod, obtain the cross-sectional area information of the piston of the fracturing pump;
  • Step 330 performing calculation processing based on the cross-sectional area information of the piston and the force information of the pull rod to obtain the liquid pressure information of the pump cavity of the fracturing pump;
  • Step 340 determining the plunger phase information corresponding to the force information of the pull rod
  • Step 350 detecting whether the liquid pressure information in the pump chamber matches the plunger phase information
  • Step 360 if the liquid pressure information of the pump chamber matches the phase information of the plunger, then determine the liquid pressure information of the fracturing pump according to the liquid pressure information of the pump chamber and the phase information of the plunger;
  • Step 370 if the liquid pressure information of the fracturing pump does not meet the preset pressure threshold, determine the abnormal detection result of the fracturing pump.
  • Step 380 triggering the alarm feedback module to output alarm information based on the abnormality detection result.
  • the power end sensor may include a stress sensor installed on the pull rod of the fracturing pump, and the detection of the force information of the fracturing pump by the power end sensor of the fracturing pump may include the following sub-steps :
  • Sub-step 3101 acquiring the stress information of the rod end detected by the stress sensor.
  • Sub-step 3102 based on the stress information of the tie rod end and the preset cross-sectional area information of the tie rod end corresponding to the fracturing pump, determine the force information of the tie rod.
  • the deformation data of the tie rod can be obtained when the fracturing pump is performing fracturing work, and the deformation data can be converted into stress information at the end of the tie rod.
  • the cross-sectional area of the tie rod end of the split pump is fixed, so the cross-sectional area of the tie rod end can be used as the preset cross-sectional area information of the tie rod end. Then, the stress information of the tie rod and the preset cross-sectional area information of the tie rod end corresponding to the fracturing pump can be calculated and processed, so that the force information of the tie rod can be determined.
  • the tie rod end stress corresponding to the tie rod end stress information can be ⁇
  • the tie rod end cross-sectional area corresponding to the preset tie rod end cross-sectional area information can be A1
  • the power end sensor may include a strain sensor installed on the tie rod of the fracturing pump, and the force information of the tie rod of the fracturing pump detected by the power end sensor of the fracturing pump may be Include the following sub-steps:
  • Sub-step 3103 obtaining the strain information of the rod end detected by the strain sensor.
  • Sub-step 3104 based on the strain information of the tie rod end, the elastic modulus information of the preset tie rod material corresponding to the fracturing pump, and the preset cross-sectional area information of the tie rod end corresponding to the fracturing pump, determine the force on the tie rod information.
  • the deformation data of the tie rod can be obtained when the fracturing pump is performing fracturing work, and the deformation data can be converted into strain information at the end of the tie rod.
  • Both the elastic modulus of the tie rod material of the fracture pump and the cross-sectional area of the tie rod end of the fracturing pump can be fixed, so the elastic modulus of the material at the tie rod end can be used as the preset elastic modulus information of the tie rod material, and the cross-sectional area of the tie rod end can be The area is used as the preset cross-sectional area information of the tie rod end.
  • the strain information of the tie rod, the elastic modulus information of the fracturing pump corresponding to the preset tie rod material, and the cross-sectional area information of the tie rod end corresponding to the fracturing pump can be calculated and processed, so that the force information of the tie rod can be determined.
  • the strain at the tie rod end corresponding to the strain information at the tie rod end may be ⁇
  • the elastic modulus of the material at the tie rod end corresponding to the preset elastic modulus information of the tie rod material may be E
  • the preset tie rod end cross-sectional area The cross-sectional area of the tie rod end corresponding to the information may be A1
  • the frac pump piston cross-sectional area information may be the frac pump plunger cross-sectional area. After determining the pulling force or pushing force on the pull rod, information on the liquid pressure in the pump chamber of the fracturing pump can be obtained based on the cross-sectional area of the fracturing pump plunger and the pulling or pushing force on the pull rod.
  • the stress or strain information can be identified, the stress or strain direction can be determined, and the current state of motion of the tie rod can be further determined based on the stress or strain direction, such as can be determined Whether the pull rod is extending or retracting, so that based on the current state of motion of the pull rod, it can be determined whether the force on the pull rod is a push force or a pull force.
  • the plunger phase information of the fracturing pump can be determined according to the extension or retraction movement of the pull rod, so that the fracturing pump’s Test results.
  • the tension or push force on the tie rod can be quickly obtained based on the stress or strain information, so that the preset compression force can be combined with the tension or push force on the tie rod.
  • the cross-sectional area of the plunger of the fracturing pump can be used to obtain the liquid pressure information of the pump chamber of the fracturing pump. It does not require special algorithm identification or data filtering, nor does it require complicated and cumbersome data analysis and calculation. The data processing efficiency is high. Timely feedback can be provided in the event of a failure, realizing real-time detection of the fracturing pump and avoiding greater losses.
  • the plunger phase information may be status data of extension or retraction of the drawbar. If the force on the pull rod corresponding to the pull rod force information is the pulling force, it can be determined that the pull rod is retracting, and the plunger phase information when the pull rod is retracting can be obtained; If the force is thrust, it can be determined that the pull rod is extending, and the plunger phase information when the pull rod is extending can be obtained.
  • the state data of the pull rod fully extended in the extending motion or the state data of the pull rod fully retracted in the retracting motion may be used as plunger phase information.
  • the stress or strain information corresponding to the extension movement of the tie rod can be defined as negative, and the stress or strain information corresponding to the retraction movement of the tie rod can be defined as positive. After collecting the stress or strain information at the end of the tie rod, it can be judged whether the tie rod is extending or retracting according to the positive or negative signal contained in the stress or strain information. If the collected stress or strain information contains a positive signal, it can be determined that the pull rod is performing a retracting motion.
  • the collected stress or strain signal contains a negative signal, it can be determined that the pull rod is in an extension motion.
  • the collected stress or strain information changes from a positive signal to a negative signal, it can be determined that the pull rod has retracted to the maximum position and is ready to extend. At this time, it can be determined that the pull rod has been fully retracted, and the pull rod can be fully retracted.
  • Status data as plunger phase information.
  • the collected stress or strain signal changes from a negative signal to a positive signal, the pull rod has been extended to the maximum position and is ready to be retracted. At this time, it can be determined that the pull rod has been fully extended, and the status data when the pull rod is fully extended as plunger phase information.
  • pump cavity fluid pressure information can be matched with plunger phase information. If the movement state of the pull rod corresponding to the liquid pressure information in the pump chamber is extended, and the movement state of the pull rod corresponding to the plunger phase information is also extended, it can be determined that the liquid pressure information in the pump chamber matches the plunger phase information; if the liquid in the pump chamber If the movement state of the tie rod corresponding to the pressure information is retracted, and the movement state of the tie rod corresponding to the plunger phase information is also retracted, it can be determined that the liquid pressure information in the pump chamber matches the plunger phase information.
  • the fluid pressure information of the fracturing pump may include the pressure information of the discharge fluid of the fracturing pump and the pressure information of the suction fluid of the fracturing pump. If the liquid pressure information in the pump chamber matches the plunger phase information, and the movement state of the pull rod corresponding to the liquid pressure information in the pump chamber and the plunger phase information is extended, then it can be determined that the liquid pressure information of the fracturing pump is the displacement of the fracturing pump. Liquid pressure information.
  • liquid pressure information in the pump chamber matches the plunger phase information, and the movement state of the pull rod corresponding to the liquid pressure information in the pump chamber and the plunger phase information is retracted, then it can be determined that the liquid pressure information of the fracturing pump is the suction value of the fracturing pump. Liquid pressure information.
  • the determination of the liquid pressure information of the fracturing pump based on the liquid pressure information of the pump chamber and the phase information of the plunger may include the following sub-steps:
  • Sub-step 3601 if the plunger phase information is the first plunger phase information, then determine the first liquid pressure information of the fracturing pump according to the liquid pressure information of the pump chamber and the first plunger phase information ;as well as
  • Sub-step 3602 if the plunger phase information is the second plunger phase information, then determine the second liquid pressure information of the fracturing pump according to the liquid pressure information of the pump chamber and the second plunger phase information .
  • the first plunger phase information may be state data when the pull rod is fully extended, and the second plunger phase information may be state data when the pull rod is fully retracted.
  • the first liquid pressure information may be the pressure information of the discharge liquid of the fracturing pump, and the second liquid pressure information may be the pressure information of the suction liquid of the fracturing pump.
  • a suction pressure sensor can be installed near the low-pressure liquid inlet of the fracturing pump to collect pressure information at the liquid inlet of the fracturing pump, and a discharge pressure sensor can be installed near the high-pressure liquid outlet of the fracturing pump , to collect the pressure information of the outlet of the fracturing pump. Then, the pressure information of the liquid suction liquid of the fracturing pump can be compared with the pressure information of the liquid inlet of the fracturing pump to obtain the pressure difference information of the liquid suction; The pressure information is compared to obtain the discharge pressure difference information.
  • the suction pressure difference information or the liquid discharge pressure difference information can be compared with the preset pressure threshold to determine whether the suction pressure difference information or the liquid discharge pressure difference information meets the preset pressure threshold. Or in the case that the information on the pressure difference of the drainage does not meet the preset pressure threshold, determine the abnormal detection result of the fracturing pump.
  • two pressure thresholds may be preset, for example, the preset two pressure thresholds may be a high pressure threshold and a low pressure threshold. It may be to compare the suction pressure difference information with the preset high-pressure pressure threshold. If the suction pressure difference information is higher than the preset high-pressure pressure threshold, it can be determined that the fracturing pump is abnormal, and the abnormality may be the fracturing pump.
  • the discharge pressure difference information can be compared with the preset low-pressure pressure threshold. If the discharge pressure information is lower than the preset low-pressure pressure threshold, it can be determined that the fracturing pump is abnormal. The abnormality may be the fracturing pump. High pressure seal failure inside liquid end. Comparing the suction pressure difference information or discharge pressure difference information with the preset pressure threshold, according to the comparison results, the degree of internal seal failure of the fracturing pump can be intuitively understood, making the monitoring results more accurate.
  • FIG. 4 shows a schematic diagram of a fracturing pump detection system 500 provided by the present disclosure, which may include independent sensors and a remote monitoring platform.
  • the independent sensor can include a signal acquisition module, a power supply module and a signal transmission module;
  • the remote detection platform can include a signal receiving module and an operation panel, and the operation panel can include a data processing module, a threshold setting module and an alarm feedback module.
  • the signal acquisition module may include a diaphragm stress or strain sensor, a liquid suction pressure sensor and/or a liquid discharge pressure sensor, and the power supply module may be an independent battery, etc., which is not limited in this example.
  • the power supply module can provide electric energy for the signal collection module and the signal transmission module, so that the signal collection module and the signal transmission module can enter the working state according to the electric energy provided by the power supply module.
  • stress or strain sensors can be installed in the axial direction of the tie rod, such as a set of sensors can be installed in the horizontal and vertical directions of the tie rod, and the suction pressure sensor can be installed in the low pressure inlet of the fracturing pump. Near the liquid port, the discharge pressure sensor can also be installed at the high-pressure outlet end of the fracturing pump, which is not limited in the present disclosure.
  • the signal acquisition module can collect the stress or strain information at the horizontal position and the vertical position of the tie rod respectively, and send the collected stress or strain information to the signal transmitter
  • the module is used to trigger the signal transmitting module to send stress or strain information to the signal receiving module of the remote monitoring platform.
  • the signal transmitting module can be remotely wirelessly connected with the signal receiving module of the remote monitoring platform, so that the signal receiving module can receive the stress or strain information sent by the signal transmitting module.
  • the signal receiving module can output the stress or strain information to the data processing module, so that the data processing module can determine the hydraulic pressure information of the fracturing pump according to the stress or strain information, and recognize that the tie rod is extending according to the stress or strain information It is still a retraction movement, and then the plunger phase information of the fracturing pump is obtained.
  • the data processing module can also match the liquid pressure information of the fracturing pump with the corresponding plunger phase information to obtain the suction liquid pressure information or the discharge liquid pressure information of the fracturing pump.
  • the signal acquisition module can also collect the pressure information of the inlet of the fracturing pump collected by the suction pressure sensor and the pressure information of the outlet of the fracturing pump collected by the discharge pressure sensor, through the signal transmitting module and the signal receiving module.
  • the module sends to the data processing module.
  • the data processing module can compare the pressure information of the suction liquid of the fracturing pump with the pressure information of the liquid inlet of the fracturing pump to obtain the pressure difference information of the suction liquid; By comparing the pressure information, the discharge pressure difference information is obtained. Then the data processing module can obtain the pressure threshold set by the threshold setting module.
  • the data processing module can determine that the fracturing pump is abnormal and generate a pressure threshold. Anomaly detection results for cracked pumps.
  • the data processing module can trigger the alarm feedback module to send out alarm information based on the abnormality detection result. For example, it can trigger the alarm feedback module to send out sound and light alarms, etc. This example does not limit this.
  • the staff can determine the abnormal information of the fracturing pump through the operation panel, such as determining the high pressure or low pressure leakage of the fracturing pump, etc. This example does not limit this.
  • the staff can also realize the setting of the pressure threshold in the threshold setting module through the operation panel, such as adjusting the size of the pressure threshold.
  • the interior of the hydraulic end of the fracturing pump fails incipiently, such as microleakage or cracking, etc. may occur.
  • the liquid in the pump chamber of the fracturing pump will flow out from the leak or crack, resulting in abnormal liquid pressure in the pump chamber.
  • the plunger will feed back the abnormality to the pull rod, which is specifically manifested in the decrease of the thrust of the pull rod and the stress or reduced strain.
  • the stress or strain information fed back by the stress or strain sensor will also change accordingly. Therefore, by combining the collected stress or strain information at the end of the tie rod with the phase information of the plunger, it is possible to quickly analyze whether the high-pressure seal or the low-pressure seal has failed, making the detection of the fracturing pump more timely and accurate.
  • the low-pressure seal at the hydraulic end of the fracturing pump fails, when the pull rod retracts, liquid enters the hydraulic end of the fracturing pump, and the plunger phase information is normal.
  • the pull rod retracts, liquid enters the hydraulic end of the fracturing pump, and the plunger phase information is normal.
  • the hydraulic end of the fracturing pump drains liquid.
  • the hydraulic end of the fracturing pump cannot maintain a high normal value, the thrust received by the pull rod decreases, and the stress sensor detects The stress information of the tie rod will be reduced.
  • the outlet end of the liquid end of the fracturing pump is drained. Since the liquid end of the fracturing pump is connected in series In the working chamber, the pressure of each discharge end is consistent, so the stress information detected by the stress sensor is normal when the pull rod is extended. When the pull rod retracts, the hydraulic end of the fracturing pump absorbs liquid.
  • generating the abnormality detection result of the fracturing pump includes: if the first liquid pressure information does not meet the preset first a pressure information threshold, the first detection result of the fracturing pump generated based on the first fluid pressure information is abnormal; if the second fluid pressure information does not meet the preset second pressure information threshold, based on the The second detection result of the fracturing pump generated by the second hydraulic pressure information is abnormal.
  • the alarm feedback module can be triggered to send an alarm message based on the abnormal detection result, such as an audible and visual alarm to remind the staff that the fracturing pump is abnormal . This disclosure does not limit this.
  • the first liquid pressure information may be liquid suction liquid pressure information, and the first pressure information threshold may be a high pressure pressure threshold; the second liquid pressure information may be discharge liquid pressure information, and the second pressure information threshold may be is the low pressure threshold, which is not limited by the present disclosure.
  • the embodiment of the present disclosure uses the power end sensor of the fracturing pump to detect the force information of the tie rod of the fracturing pump, and obtains the piston cross-sectional area information of the fracturing pump based on the force information of the tie rod, and based on the piston cross-sectional area information and
  • the force information of the tie rod is calculated and processed to obtain the liquid pressure information of the pump chamber of the fracturing pump, so as to determine the plunger phase information corresponding to the force information of the tie rod, and check whether the liquid pressure information of the pump chamber matches the plunger phase information, so as to obtain
  • the liquid pressure information of the fracturing pump is determined according to the liquid pressure information of the pump chamber and the plunger phase information.
  • the present disclosure provides a fracturing pump detection system 500, which includes;
  • the tie rod force detection module 510 is configured to detect the force information of the tie rod of the fracturing pump through the power end sensor of the fracturing pump;
  • the pump chamber liquid pressure information determination module 520 is configured to determine the pump chamber liquid pressure information of the fracturing pump according to the force information of the tie rod;
  • the detection result determining module 530 is configured to determine the detection result of the fracturing pump according to the liquid pressure information in the pump chamber and the plunger phase information corresponding to the force information of the pull rod.
  • the power end sensor includes a stress sensor installed on the tie rod of the fracturing pump, and the force information of the tie rod of the fracturing pump is detected through the power end sensor of the fracturing pump, include:
  • the force information of the tie rod is determined.
  • the power end sensor includes a strain sensor installed on the tie rod of the fracturing pump, and the force information of the tie rod of the fracturing pump is detected through the power end sensor of the fracturing pump, include:
  • the force information of the tie rod is determined based on the strain information of the tie rod end, the elastic modulus information of the preset tie rod material corresponding to the fracturing pump, and the preset cross-sectional area information of the tie rod end corresponding to the fracturing pump.
  • the determination of the pressure information of the pump cavity of the fracturing pump according to the force information of the tie rod includes:
  • the calculation process is performed based on the cross-sectional area information of the piston and the force information of the pull rod to obtain the liquid pressure information of the pump cavity of the fracturing pump.
  • the determination of the detection result of the fracturing pump according to the liquid pressure information in the pump chamber and the plunger phase information corresponding to the force information of the pull rod includes:
  • liquid pressure information in the pump chamber matches the plunger phase information, then determine the liquid pressure information of the fracturing pump according to the liquid pressure information in the pump chamber and the plunger phase information;
  • the determining the liquid pressure information of the fracturing pump according to the liquid pressure information of the pump chamber and the phase information of the plunger includes:
  • the plunger phase information is the first plunger phase information, then determine the first liquid pressure information of the fracturing pump according to the pump cavity liquid pressure information and the first plunger phase information;
  • the second liquid pressure information of the fracturing pump is determined according to the pump cavity liquid pressure information and the second plunger phase information.
  • the fracturing pump after generating the abnormal detection result of the fracturing pump, it further includes:
  • generating the abnormality detection result of the fracturing pump includes: if the first liquid pressure information does not meet the preset first a pressure information threshold, the first detection result of the fracturing pump generated based on the first fluid pressure information is abnormal; if the second fluid pressure information does not meet the preset second pressure information threshold, based on the The second detection result of the fracturing pump generated by the second hydraulic pressure information is abnormal.
  • the fracturing pump detection system provided in the embodiments of the present disclosure can execute the fracturing pump detection method provided in any embodiment of the present disclosure, and has the corresponding functions and beneficial effects of the method.
  • the above-mentioned fracturing pump detection system can detect the force information of the pull rod through the power end sensor of the fracturing pump, so as to determine the detection result of the fracturing pump.
  • the fracturing pump detection system may be composed of two or more physical entities, or may be composed of one physical entity.
  • the equipment may be a personal computer (Personal Computer, PC), a computer, a server, etc.
  • PC Personal Computer
  • PC Personal Computer
  • server a server
  • the present disclosure provides a fracturing pump detection device 600, which includes a processor 111, a communication interface 112, a memory 113, and a communication bus 114, wherein the processor 111, the communication interface 112, and the memory 113 pass through the communication bus 114 The mutual communication is completed; the memory 113 is used to store the computer program; the processor 111 is used to execute the program stored on the memory 113 to implement the steps of the fracturing pump detection method provided by any method embodiment of the present disclosure.
  • the steps of the fracturing pump detection method may include the following steps: detecting the force information of the tie rod of the fracturing pump through the power end sensor of the fracturing pump, and determining the force information of the tie rod according to the force information of the fracturing pump.
  • the liquid pressure information of the pump chamber of the fracturing pump is used to determine the detection result of the fracturing pump according to the liquid pressure information of the pump chamber and the plunger phase information corresponding to the force information of the pull rod.
  • the present disclosure also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the fracturing pump detection method as provided in the present disclosure is implemented.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

Procédé, système et dispositif de détection de pompe de fracturation, et support de stockage, se rapportant au domaine technique des dispositifs de fracturation. Le procédé de détection de pompe de fracturation consiste à : détecter des informations de contrainte d'une tige de traction (1) d'une pompe de fracturation au moyen d'un capteur (2) au niveau d'une extrémité de puissance de la pompe de fracturation ; déterminer des informations de pression de liquide de cavité de pompe de la pompe de fracturation en fonction des informations de contrainte de la tige de traction (1) ; et déterminer un résultat de détection de la pompe de fracturation en fonction des informations de pression de liquide de cavité de pompe et d'informations de phase d'un piston (3) correspondant aux informations de contrainte de la tige de traction (1). Le processus de filtrage intermédiaire et de reconnaissance de caractéristique d'algorithme du capteur de vibration classique est annulé, dans le même temps, l'influence du remplacement d'une partie d'usure au niveau d'une extrémité hydraulique sur le capteur est évitée, et la précision de détection est améliorée.
PCT/CN2022/132837 2021-12-20 2022-11-18 Procédé, système et dispositif de détection de pompe de fracturation, et support de stockage WO2023116294A1 (fr)

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