WO2023115706A1 - Système d'inspection de boîtier à soupape - Google Patents

Système d'inspection de boîtier à soupape Download PDF

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Publication number
WO2023115706A1
WO2023115706A1 PCT/CN2022/079271 CN2022079271W WO2023115706A1 WO 2023115706 A1 WO2023115706 A1 WO 2023115706A1 CN 2022079271 W CN2022079271 W CN 2022079271W WO 2023115706 A1 WO2023115706 A1 WO 2023115706A1
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WO
WIPO (PCT)
Prior art keywords
valve box
module
detection
detection system
linear
Prior art date
Application number
PCT/CN2022/079271
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English (en)
Chinese (zh)
Inventor
姜一博
李海龙
左文龙
Original Assignee
烟台杰瑞石油服务集团股份有限公司
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Publication of WO2023115706A1 publication Critical patent/WO2023115706A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Definitions

  • the application belongs to the technical field of oil and gas equipment, and in particular relates to a valve box detection system.
  • fracturing and acidizing operations are one of the important means to improve oil and gas reservoirs.
  • the operating conditions are becoming more and more severe, requiring high-pressure, large-displacement operations. Therefore, the requirements for fracturing pumps are getting higher and higher.
  • the valve box is a vulnerable part of the hydraulic end of the fracturing pump, which needs to withstand the combined effects of high pressure, corrosion and fatigue loads. If things go on like this, cracks are prone to occur inside the valve box, and liquid leakage occurs, resulting in the valve box being scrapped.
  • the purpose of the embodiment of the present application is to provide a valve box detection system, which can solve the problems of high labor intensity and low detection efficiency caused by manual detection of the valve box.
  • valve box detection system includes: a detection device, a mobile device, a control module, a data analysis and processing module, and a data storage and visualization module;
  • the detection device is arranged on the mobile device
  • the mobile device is signal-connected to the control module
  • the detection device is signal-connected to the data analysis and processing module
  • the data analysis and processing module is respectively signal-connected to the control module and the data storage and visualization module.
  • valve box detection system provided in the embodiment of this application can automatically detect the valve box. Compared with the inspection method of personnel one by one and cylinder by cylinder, the valve box detection system in the embodiment of this application has the advantages of high detection efficiency and high detection accuracy. And there is no need to manually inspect each cylinder by cylinder, thereby reducing the labor intensity of personnel and saving labor costs.
  • FIG. 1 is a schematic diagram of a valve box detection system disclosed in an embodiment of the present application
  • Fig. 2 is a schematic diagram of the signal connection of each component in the valve box detection system disclosed in the embodiment of the present application;
  • Fig. 3 is the control logic diagram of the crack detection in the valve box disclosed in the embodiment of the present application.
  • Fig. 4 is the control logic diagram of the valve box life management disclosed in the embodiment of the present application.
  • Fig. 5 is a sectional view of the valve box disclosed in the embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a mobile device disclosed in an embodiment of the present application.
  • 100-detection device 110-ultrasonic probe; 120-information identification probe;
  • 200-moving device 210-the first linear module; 211-the first driving member; 212-the first screw; 213-the first moving seat; 220-the second linear module; 221-the second driving member; 222-the second screw mandrel; 223-the second moving seat;
  • valve box inspection system for inspecting a valve box 800 of oil and gas equipment.
  • the valve box 800 of the fracturing components such as the plunger pump, can be tested.
  • the disclosed valve box detection system includes a detection device 100 , a mobile device 200 , a control module 300 , a data analysis and processing module 400 and a data storage and visualization module 500 .
  • the detection device 100 is used to detect the valve box 800 to obtain the information of the valve box, such as identification information of the valve box 800 , crack conditions, and the like.
  • the moving device 200 is used to drive the detection device 100 to move to detect different positions of the valve box 800 .
  • the detection device 100 is disposed on the mobile device 200 .
  • the detection device 100 can be connected to the mobile end of the mobile device 200 so that the detection device 100 can be carried by the mobile end of the mobile device 200 to move, so as to detect different positions of the valve box 800 .
  • the control module 300 is at least used for controlling the mobile device 200 .
  • the mobile device 200 is signal-connected to the control module 300, so that the control module 300 can send control instructions to the mobile device 200 to control the operation of the mobile device 200 according to actual needs, thereby realizing the control of the movement of the mobile terminal in the mobile device 200 .
  • the data analysis and processing module 400 is at least used for analyzing and processing the detection information of the detection device 100 .
  • the detection device 100 is signal-connected to the data analysis and processing module 400, so that the information about the valve box 800 detected by the detection device 100 can be transmitted to the data analysis and processing module 400, and the above-mentioned Information is analyzed and processed.
  • the data analysis and processing module 400 is connected with the control module 300 by signal, so that the analysis and processing results of the relevant information of the valve box 800 can be sent to the control module 300 , so that the control module 300 can send control instructions to the mobile device 200 .
  • the data storage and visualization module 500 is used to store and process the analysis and processing results of the data analysis and processing module 400 .
  • the data storage and visualization module 500 is in signal connection with the data analysis and processing module 400 . In this way, the analysis and processing results of the data analysis and processing module 400 for the relevant information of the valve box 800 can be transmitted to the data storage and visualization module 500 , so that the information is stored and processed through the data storage and visualization module 500 .
  • the valve box 800 is detected by the detection device 100 to obtain the relevant information of the valve box 800; Perform analysis and processing; the data analysis and processing module 400 can send a control signal to the control module 300 according to the analysis and processing results, and send a motion control command to the mobile device 200 through the control module 300, so that the detection device 100 can be driven by the mobile device 200 according to the motion control command move, and then realize the detection of different positions of the valve box 800; at the same time, the data analysis and processing module 400 can also transmit the analysis and processing result information to the data storage and visualization module 500, and the data storage and visualization module 500 performs information processing storage and processing.
  • the detection of the valve box 800 can be realized, and the situation of the valve box 800 can be monitored in real time, so that the fracturing pump can be effectively prevented from operating in the valve box 800 under abnormal conditions, thereby prolonging the service life of the valve box 800 and ensuring extended the life of the fracturing components.
  • valve box detection system in the embodiment of the application has the advantages of high detection efficiency and high detection accuracy, and does not need manual inspection by one cylinder by one, thereby reducing the labor intensity of personnel and saving labor cost.
  • the valve box detection system in the embodiment of the present application can detect the cracks inside the valve box 800. In addition, it can also evaluate and manage the service life of the valve box 800. Therefore, the service life of the valve box 800 can be guaranteed .
  • the detection device 100 may include an ultrasonic probe 110 and an information identification probe 120 .
  • the ultrasonic probe 110 is used to detect the crack inside the valve box 800
  • the information identification probe 120 is used to detect the identification information of the valve box 800 .
  • the ultrasonic probe 110 may include an ultrasonic excitation module for sending and receiving ultrasonic signals, and the ultrasonic excitation module is connected to the data analysis and processing module 400 in a signal manner.
  • the information identification probe 120 may be a camera, a scanning probe, and the like.
  • both the ultrasonic probe 110 and the information identification probe 120 can be connected to the mobile terminal of the mobile device 200, so that the mobile terminal of the mobile device 200 can carry the ultrasonic probe 110 and the information identification probe 120 to move.
  • the mobile end of the mobile device 200 can carry the ultrasonic probe 110 to move to detect cracks at different positions inside the valve box 800, so that the detection area can be enlarged, and the detection area inside the valve box 800 can be realized in all directions, and the detected cracks can be detected.
  • the crack condition inside the valve box 800 is transmitted to the data analysis and processing module 400 for analysis and processing.
  • the mobile terminal of the mobile device 200 carries the information identification probe 120 to move to the area opposite to the identification plate of the valve box 800, scans the identification plate of the valve box 800 through the information identification probe 120, and transmits the scanned identification information to the data analysis
  • the processing module 400 performs analysis processing.
  • the multi-directional movement of the detection device 100 can be realized by the moving device 200 , thereby increasing the reach of the detection device 100 , thereby increasing the detection range.
  • the mobile device 200 can move the detection device 100 in two directions.
  • the mobile device 200 includes a first linear module 210 and a second linear module 220 .
  • the reciprocating movement of the detection device 100 in the first direction can be realized by the first linear module 210
  • the reciprocating movement of the detection device 100 in the second direction can be realized by the second linear module 220 .
  • the moving end of the first linear module 210 can move along the first direction, and the detection device 100 is connected to the moving end of the first linear module 210 .
  • the moving end of the first linear module 210 can carry the detection device 100 to reciprocate along the first direction, so that the inspection device 100 can detect cracks inside the valve box 800 in the first direction.
  • the moving end of the second linear module 220 can move along a second direction, the second direction is perpendicular to the first direction, and the first linear module 210 is connected to the moving end of the second linear module 220 .
  • the moving end of the second linear module 220 can carry the first linear module 210 and the detection device 100 on it to reciprocate along the second direction, so that the valve box 800 can be controlled by the detection device 100 in the second direction.
  • the first linear module 210 and the second linear module 220 can also carry the information identification probe 120 to move, so that the information identification probe 120 moves to be opposite to the identification plate of the valve box 800, thereby identifying the information on the identification plate. identification information.
  • the detection device 100 can detect cracks inside the valve box 800 in the first direction and the second direction, so as to expand the detection range. All-round detection of the inside of the valve box 800 is realized, and identification of the identification information of the valve box 800 is realized.
  • the first linear module 210 includes a first driving member 211 , a first screw 212 and a first moving seat 213 , wherein the first screw 212 and the first driving member 211 Transmission connection, the first moving base 213 is in transmission connection with the first screw mandrel 212 , and the detection device 100 is connected with the first moving base 213 .
  • the first driving member 211 can be a servo motor, and the rotating shaft of the servo motor is connected to the first screw rod 212 to drive the first screw rod 212 to rotate.
  • the first screw rod 212 rotates in both directions, it can drive the first screw rod 212
  • the moving seat 213 moves bidirectionally along the first direction.
  • the first driving member 211 can drive the first moving base 213 through rack and pinion transmission, sprocket chain transmission, pulley belt transmission, etc.
  • the specific transmission mode is not specifically limited in this embodiment of the application.
  • the first linear module 210 can also include a first linear guide rail extending along the first direction, and the first moving seat 213 is slidably connected with the first linear guide rail, so that the first linear guide rail can The first moving seat 213 plays a guiding role.
  • the second linear module 220 includes a second driving member 221 , a second screw rod 222 and a second moving seat 223 , wherein the second screw rod 222 and the second driving member 221 transmit connection, the second moving seat 223 is in transmission connection with the second screw mandrel 222 , and the first linear module 210 is connected with the second moving seat 223 .
  • the second driving member 221 can be a servo motor, and the rotating shaft of the servo motor is connected with the second screw rod 222 to drive the second screw rod 222 to rotate.
  • the second screw rod 222 rotates bidirectionally, it can drive the second screw rod 222
  • the moving base 223 moves bidirectionally along the second direction.
  • the second driving member 221 can drive the second moving base 223 through rack and pinion transmission, sprocket chain transmission, pulley belt transmission, etc.
  • the specific transmission mode is not specifically limited in this embodiment of the application.
  • the second linear module 220 can also include a second linear guide rail extending along the second direction, and the second moving seat 223 is slidably connected with the second linear guide rail, so that the second linear guide rail can move the second moving seat 223 plays a guiding role.
  • the second linear module 220 may further include a support base, and the polished section of the second screw rod 222 is rotatably connected with the support base to support the second screw rod 222 and make the second screw rod 222 rotatable.
  • two support seats may be arranged at intervals in the second direction, and the two support seats respectively support the two end regions of the second screw rod 222 , thereby ensuring the stability of the second screw rod 222 .
  • the moving device 200 may include two second linear modules 220, and the two second linear modules 220 are arranged at intervals along the first direction,
  • the first linear module 210 is connected to the second moving seats 223 of the two second linear modules 220 respectively.
  • the areas close to both ends of the first linear module 210 can be respectively supported by the two second moving seats 223, so that the first linear module 210 will not be tilted during the moving process, thereby ensuring that the first linear module 210 Stability of module 210 movement.
  • the two second linear modules 220 can be driven independently.
  • the two driving parts 221 are controlled separately, so that the operating parameters of the two second driving parts 221 are the same, thereby ensuring that the moving speeds of the two second moving seats 223 are the same, so that the first linear module 210 does not move during the movement process. Tilting will occur.
  • the two second linear modules 220 can also be driven by the same power source.
  • the power source can have two output ends, and the two output ends are respectively connected to the two second screw rods 222 through transmission. Therefore, the same power source can simultaneously drive the two second screw rods 222 to rotate, so as to drive the two second moving seats 223 to move synchronously. This way can also ensure that the first linear module 210 will not be tilted during the moving process, and reduces parts and manufacturing costs.
  • a through hole and a threaded hole can be set on the second moving base 223, wherein the axis of the through hole extends along the first direction, and the threaded hole
  • the axis of the shaft extends along the second direction, so that the opening directions of the through hole and the threaded hole are perpendicular to each other, and the two are misplaced without interfering with each other.
  • the first threaded rod 212 has a polished rod section, and the polished rod section is rotatably passed through the through hole. In this way, the rotational connection between the first screw rod 212 in the first linear module 210 and the second moving seat 223 in the second linear module 220 can be realized.
  • the second threaded rod 222 has a threaded section, the threaded section passes through the threaded hole, and the threaded section is threadedly engaged with the threaded hole. In this way, the screw connection between the second moving base 223 and the second screw rod 222 can be realized, and when the second screw rod 222 rotates, the second moving base 223 can be driven to move along the second direction.
  • the connection between the first screw mandrel 212 and the second screw mandrel 222 can be realized, and the first screw mandrel 212 and the second screw mandrel 222 can be connected together. are perpendicular to each other, so as to realize the connection between the first linear module 210 and the second linear module 220, and there will be no motion interference between the two, so the detection device 100 can be moved in the first direction and the second direction. move.
  • the valve box detection system further includes a first detection element 610 .
  • the first detection element 610 is disposed inside the valve box 800 and connected to the data analysis and processing module 400 in signal connection. In this way, the first detecting element 610 can detect the liquid pressure inside the valve box 800 in real time, and transmit the liquid pressure information to the data analysis and processing module 400 .
  • the detected liquid pressure reaches or exceeds the first preset threshold, it is determined that the valve box 800 is in the use state; when the detected liquid pressure is lower than the first preset threshold, it is determined that the valve box 800 is in the non-use state, That is, end use.
  • the valve box detection system also includes a second detection element 620, the second detection element 620 is arranged corresponding to the rotating shaft, such as, spaced apart, relatively arranged, etc., and the second detection element 620 and the data analysis and processing module 400 signal connect.
  • the rotation speed of the rotating shaft installed on the valve box 800 can be detected in real time through the second detection element 620 , and the rotation speed information can be transmitted to the data analysis and processing module 400 .
  • the valve box 800 When the detected rotational speed reaches or exceeds the second preset threshold, it is determined that the valve box 800 is in use; when the detected rotational speed is less than the second preset threshold, it is determined that the valve box 800 is in a non-use state, that is, End use.
  • the liquid pressure in the valve box 800 and the speed of the rotating shaft installed on the valve box 800 can also be detected at the same time, so as to determine whether the valve box 800 is in use through the liquid pressure and the rotating speed of the rotating shaft, thereby improving the accuracy of judgment .
  • the usage time of the valve box 800 can be calculated accumulatively according to whether the valve box 800 is in use, and then the life of the valve box 800 can be predicted based on the total usage time of the valve box 800 .
  • the identification information on the identification plate of the valve box 800 may include at least one of the valve box number, material, production date, delivery date and production process control information. In addition to this, other information may also be included. Based on this, the information identification probe 120 can be used to identify the identification information in the identification plate, so as to obtain the characteristic parameters of the valve box 800 and provide a data basis for the life management of the valve box 800 .
  • the valve box detection system further includes an alarm element 700 , which is connected to the control module 300 for signals.
  • the detection signal is transmitted to the data analysis and processing module 400, and the data analysis and processing module 400 transmits information to the control module 300, and the control module 300 controls the alarm element 700 Start and send out an alarm message to remind the operator.
  • the alarm element 700 can emit an audible and visual alarm signal.
  • the ultrasonic excitation module of the ultrasonic probe 110 receives the instruction sent by the data analysis processing module 400 (it can also be that the data analysis processing module 400 sends a signal to the control module 300, and the control module 300 sends a control instruction to the ultrasonic probe 110), and generates ultrasonic excitation.
  • Ultrasonic excitation detects cracks inside the valve box 800, receives the returned ultrasonic excitation through the ultrasonic excitation module, and sends the returned ultrasonic excitation to the data analysis and processing module 400, and the data analysis and processing module 400 analyzes and judges the returned ultrasonic excitation.
  • the data analysis processing module 400 sends the analysis processing result to the control module 300, and the control module 300 controls the mobile device 200 to drive the ultrasonic probe 110 to move to Other positions inside the valve box 800 are inspected; if there is no crack, the above actions will be repeated until a crack is found.
  • the data analysis and processing module 400 transmits the crack information to the data storage and visualization module 500, and the crack information is stored by the data storage and visualization module 500; at the same time, the control module 300 controls the alarm element 700 to send an alarm message to remind Even if the operator handles it.
  • valve box life management is as follows:
  • the data analysis and processing module 400 When the liquid pressure in the valve box 800 detected by the first detection element 610 reaches or exceeds the first preset threshold, and/or the rotation speed of the rotating shaft installed on the valve box 800 detected by the second detection element 620 reaches or exceeds the second
  • the data analysis and processing module 400 is triggered, and the data analysis and processing module 400 sends a signal to the control module 300, and the control module 300 controls the mobile device 200 to move with the information identification probe 120, so that the information identification probe 120 can be moved to the valve box.
  • 800 s identification plate, so that the identification information can be identified, so that information such as the valve box number, material, production date, delivery date, production process control information, etc. can be read; and then these identification information are sent to the data analysis and processing module 400,
  • the data is analyzed and processed (eg, information comparison, etc.) via the data analysis and processing module 400 .
  • the data storage and visualization module 500 archives the operation data of the valve box 800 recorded last time, establishes a new record file and starts recording Valve box 800 operating conditions and working hours; when the relevant operation data of the valve box 800 before the data analysis and processing module 400 is stored, the valve box detection system will carry out the cumulative record of the working time based on the last working time; when the rotating shaft speed and valve When the liquid pressure (first preset value) in the tank 800 is lower than the trigger value, the valve box detection system stops recording.
  • Such reciprocation can record and output the life cycle management of the valve box 800, and through a large amount of data analysis and recording, according to the working conditions of the valve box 800 on site, the life of the valve box 800 can be predicted and reminded.
  • valve box detection system In the embodiment of this application, the working principle of the valve box detection system is as follows:
  • the mobile device 200 is controlled by the control module 300 to drive the ultrasonic probe 110 to move inside the valve box 800, and the ultrasonic probe 110 is used to perform ultrasonic detection on the inner surface of the valve box 800, and the data analysis and processing module 400 is used to analyze and process the returned ultrasonic signal, and analyze the valve. Whether there are cracks inside the valve box 800, so as to achieve the function of real-time monitoring of cracks inside the valve box 800.
  • the valve box detection system can also record the operating data of the valve box 800 in real time. The status is summarized and sorted out, and the life management and prediction functions are finally achieved.
  • the valve box detection system in the embodiment of the present application can realize the real-time detection and fault diagnosis of the valve box 800 state at the hydraulic end of the fracturing component, effectively reducing the sudden failure of the equipment due to the cracking of the valve box 800, and at the same time Reduce the maintenance time of the hydraulic end, improve the service life of equipment, reduce production costs, and improve operating efficiency; at the same time, it can complete the management and statistics of the life data of the valve box 800, and through big data analysis, it can predict the valve box according to the operating conditions of the valve box 800 800 service life, so that the staff can be replaced in time before problems occur, effectively reducing the probability of sudden shutdown during the operation process, improving construction and production costs, lowering personnel costs, and improving production efficiency.

Abstract

Système d'inspection de boîte à soupape comprenant : un appareil d'inspection (100), un appareil de déplacement (200), un module de commande (300), un module d'analyse et de traitement de données (400) et un module de stockage et de visualisation de données (500). L'appareil d'inspection (100) est disposé sur l'appareil de déplacement (200), l'appareil de déplacement (200) est en connexion de signal avec le module de commande (300), l'appareil d'inspection (100) est en connexion de signal avec le module d'analyse et de traitement de données (400), et le module d'analyse et de traitement de données (400) est en connexion de signal avec le module de commande (300) et le module de stockage et de visualisation de données (500), respectivement.
PCT/CN2022/079271 2021-12-23 2022-03-04 Système d'inspection de boîtier à soupape WO2023115706A1 (fr)

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CN202123297098.6 2021-12-23
CN202123297098.6U CN217305027U (zh) 2021-12-23 2021-12-23 阀箱检测系统

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Publication number Priority date Publication date Assignee Title
CN117871682A (zh) * 2024-03-11 2024-04-12 华中科技大学 一种超声波回弹技术检测桥梁缺陷的检测设备

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JP2013117385A (ja) * 2011-12-01 2013-06-13 Kansai Electric Power Co Inc:The 超音波探触子
CN106595538A (zh) * 2017-01-13 2017-04-26 长江大学 一种检测套管外水泥与套管间裂隙宽度的系统及方法
CN109856167A (zh) * 2018-12-05 2019-06-07 惠州市骏亚数字技术有限公司 一种无损检测装置及其检测方法
CN111043023A (zh) * 2019-12-27 2020-04-21 橙色云设计有限公司 一种压裂泵在线监测及故障诊断系统
CN113554134A (zh) * 2021-07-23 2021-10-26 三一石油智能装备有限公司 一种压裂泵监测方法、装置、存储介质及压裂泵

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Publication number Priority date Publication date Assignee Title
JP2013117385A (ja) * 2011-12-01 2013-06-13 Kansai Electric Power Co Inc:The 超音波探触子
CN106595538A (zh) * 2017-01-13 2017-04-26 长江大学 一种检测套管外水泥与套管间裂隙宽度的系统及方法
CN109856167A (zh) * 2018-12-05 2019-06-07 惠州市骏亚数字技术有限公司 一种无损检测装置及其检测方法
CN111043023A (zh) * 2019-12-27 2020-04-21 橙色云设计有限公司 一种压裂泵在线监测及故障诊断系统
CN113554134A (zh) * 2021-07-23 2021-10-26 三一石油智能装备有限公司 一种压裂泵监测方法、装置、存储介质及压裂泵

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117871682A (zh) * 2024-03-11 2024-04-12 华中科技大学 一种超声波回弹技术检测桥梁缺陷的检测设备

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