A fracturing equipment performance testing system and method

Abstract

The application provides a fracturing equipment performance test system and method. A pressure test pump is connected with a water tank, a pump end unloading valve and a pneumatic stop valve are respectively connected with the pressure test pump, the pump end unloading valve is connected with the water tank, a ball valve is connected with the pneumatic stop valve, the ball valve is connected with a cross of an oil nipple, a container unloading valve is connected with the water tank, a water injection pump is connected with the water tank, the water injection pump is connected with a pipeline between the pump end unloading valve and the pneumatic stop valve and the pressure test pump, a pressure regulating compensation assembly and a variable frequency centrifugal pump are respectively connected with a field water tank, the pressure regulating compensation assembly is connected with the cross of the oil nipple, the cross of the oil nipple is connected with fracturing equipment, a pipeline between the pressure regulating compensation assembly and the field water tank is connected, the variable frequency centrifugal pump is connected with the cross of the oil nipple, and a second pressure sensor and a flow sensor are installed on the pipeline between the variable frequency centrifugal pump and the cross of the oil nipple.

Description

Technical Field

[0001] This invention relates to the field of oil and gas well engineering technology, and in particular to a performance testing system and method for fracturing equipment. Background Technology

[0002] Fracturing technology is a crucial part of oil extraction engineering, playing a vital role in reducing extraction costs and improving extraction efficiency. With the continuous upgrading of fracturing equipment, its performance and operating parameters are constantly improving, leading to more stringent requirements for operational safety. The harsh working environment at fracturing sites and continuous operation cause aging, fatigue damage, and equipment failures in fracturing equipment, resulting in insufficient fracturing power, pipeline leaks, and a decline in the overall performance of fracturing trucks, all of which seriously threaten the safety of fracturing operations. Inspection and testing technologies can be used to test the functions and performance of fracturing equipment before fracturing operations, ensuring that the equipment meets the requirements, reducing the risk of equipment failure, and effectively guaranteeing the quality and efficiency of fracturing operations. However, existing fracturing equipment inspection and testing methods still suffer from limited testing capabilities and difficulties in field application; conventional testing methods cannot meet the needs of field use. Therefore, there is an urgent need for a fracturing equipment inspection and testing technology that can perform multi-functional testing of fracturing equipment, has a high degree of automation, and can meet the requirements of field applications, in order to overcome the various shortcomings of existing technologies. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a fracturing equipment performance testing system and method to address the shortcomings of the prior art.

[0004] The technical solution of this invention to solve the above-mentioned technical problems is as follows: A fracturing equipment performance testing system, comprising: a skid-mounted transport assembly, fracturing equipment, a remote control system, an electrical control system, a water tank, a pressure testing pump, a pump-end unloading valve, a pneumatic shut-off valve, a ball valve, a first pressure sensor, a container unloading valve, a water injection pump, a pressure regulating and compensation assembly, a 4-way connector, a photoelectric sensor, a second pressure sensor, a flow sensor, a variable frequency centrifugal pump, and a field water tank. The electrical control system, the water tank, the pressure testing pump, the pump-end unloading valve, the pneumatic shut-off valve, the ball valve, the first pressure sensor, the container unloading valve, the water injection pump, the pressure regulating and compensation assembly, and the 4-way connector are also included. The photoelectric sensor, the second pressure sensor, the flow sensor, the variable frequency centrifugal pump, and the on-site water tank are all installed in the skid-mounted transport assembly. One end of the test pump is connected to the water tank via a pipeline. One end of the pump-end unloading valve and one end of the pneumatic shut-off valve are respectively connected to the other end of the test pump via pipelines. The other end of the pump-end unloading valve is connected to the water tank via a pipeline. One end of the ball valve is connected to the other end of the pneumatic shut-off valve via a pipeline. The other end of the ball valve is connected to the first end of the grease fitting four-way connector via a pipeline. The first pressure sensor is installed on the pipeline between the ball valve and the grease fitting four-way connector. One end of the container unloading valve is connected to the water tank via a pipeline, and the other end of the container unloading valve is connected to the pipeline between the pneumatic shut-off valve and the ball valve via a pipeline. One end of the water injection pump is connected to the water tank via a pipeline, and the other end of the water injection pump is connected to the other end of the pump-end unloading valve and the pipeline between the pneumatic shut-off valve and the pressure testing pump via pipelines. One end of the pressure regulating compensation component and one end of the variable frequency centrifugal pump are respectively connected to the on-site water tank via pipelines. The other end of the pressure regulating compensation component is connected to the second end of the oleo-nose joint four-way via a pipeline, and the third end of the oleo-nose joint four-way is connected to the fracturing equipment via a pipeline. The photoelectric... The sensor is installed on the pipeline between the oleo-connector four-way and the fracturing equipment. The other end of the variable frequency centrifugal pump is connected to the fourth end of the oleo-connector four-way through a pipeline. The second pressure sensor and the flow sensor are installed on the pipeline between the variable frequency centrifugal pump and the oleo-connector four-way. The electrical control system is connected to the pressure testing pump, the pump end unloading valve, the pneumatic shut-off valve, the ball valve, the first pressure sensor, the container unloading valve, the water injection pump, the pressure regulating compensation component, the photoelectric sensor, the second pressure sensor, the flow sensor, and the variable frequency centrifugal pump. The remote control system is connected to the electrical control system.

[0005] The beneficial effects of adopting the technical solution of this invention are as follows: A performance testing system for fracturing equipment is designed based on the hydrostatic pressure testing principle and the water circulation pressure control testing method. It can perform pump body pressure resistance testing, pump power testing, and overpressure protection device testing and inspection on fracturing equipment, integrating multiple testing functions into one system. By integrating the testing device into a skid-mounted configuration, a testing and inspection system that is easy to load and transport by vehicle is formed, enabling rapid application at the fracturing operation site. Without affecting the current fracturing operation technology and on-site working conditions, it can utilize hydrostatic pressure testing technology and water circulation pump power testing technology to perform pump end pressure resistance testing, pump power testing, and overpressure protection device testing on on-site fracturing equipment, and quickly generate corresponding test analysis reports on the inspection and inspection results. This ensures the normal performance and safety functions of the fracturing equipment, thereby guaranteeing the effectiveness of fracturing operations and protecting the safety of personnel and property at the fracturing operation site. The pressure compensation technology using a pressure regulating compensation component works in conjunction with a pressure sensor. The pressure sensor periodically collects pressure signals from within the pressure manifold and feeds them back to the remote control system as electrical signals. The remote control system compares the set signal with the received signal and then sends an adjustment control signal to the pressure regulating compensation component. The component controls the opening degree, performing pressure build-up or release to control the fluid pressure within the pressure manifold assembly, thereby adjusting the pump end load of the fracturing equipment. It also adjusts the outlet flow rate to quickly compensate for the pressure within the manifold, maintaining relatively stable manifold pressure and forming a pressure regulation closed loop. This pressure compensation technology periodically adjusts the pressure within the manifold, reducing pressure fluctuations at the pump end of the fracturing pump. The timing interval for periodic pressure adjustment is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control accuracy. Shorter acquisition intervals require higher pressure sensor accuracy, more frequent control of the pressure regulating compensation component, higher control accuracy of the component, and more stable pressure within the manifold. Using pressure regulation compensation technology to control the pressure stability within the pressure manifold ensures greater accuracy in data acquisition, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0006] Furthermore, the pressure regulating compensation component includes: a variable frequency servo motor, a throttling pressure regulating valve, a pneumatic unloading valve, and a pneumatic booster. The variable frequency servo motor is connected to the throttling pressure regulating valve. One end of the throttling pressure regulating valve is connected to the field water tank via a pipeline, and the other end of the throttling pressure regulating valve is connected to the second end of the oleo-nut four-way connector via a pipeline. One end of the pneumatic unloading valve is connected to the pipeline between the throttling pressure regulating valve and the field water tank via a pipeline, and the other end of the pneumatic unloading valve is connected to the pipeline between the throttling pressure regulating valve and the oleo-nut four-way connector via a pipeline. The pneumatic booster is connected to the pneumatic unloading valve.

[0007] The beneficial effects of adopting the above-mentioned further technical solution are as follows: Using the pressure compensation technology of the pressure compensation component, the component works in conjunction with a pressure sensor. The pressure sensor periodically collects pressure signals from within the pressure manifold and feeds them back to the remote control system in the form of electrical signals. The remote control system compares the set signal with the received signal and then sends an adjustment control signal to the variable frequency servo motor. The servo motor controls the opening of the throttling valve to either pressurize or depressurize, thus controlling the fluid pressure in the pressure manifold assembly and adjusting the pump-end load of the fracturing equipment. The outlet flow rate is adjusted to quickly compensate for the pressure within the manifold, maintaining relatively stable manifold pressure and forming a pressure regulation closed loop. This pressure compensation technology periodically adjusts the pressure within the manifold, reducing pressure fluctuations at the pump-end output of the fracturing pump. The timing interval for periodically adjusting the pressure within the manifold is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control accuracy. A shorter acquisition interval requires higher accuracy from the pressure sensor, more frequent control of the variable frequency servo motor, higher control accuracy of the throttling valve, and greater stability of the pressure within the manifold. Using pressure regulation compensation technology to control the pressure stability within the pressure manifold ensures greater accuracy in data acquisition, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0008] Furthermore, a first inlet ball valve is provided on the pipeline between the water tank and the test pump, a first check valve is provided on the pipeline between the test pump and the pneumatic shut-off valve, and a safety valve is provided on the grease fitting four-way valve.

[0009] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the ball valve facilitates the opening and closing of the pipeline according to actual needs, and facilitates the installation and maintenance of the water tank. The check valve ensures that the fluid can only flow in one direction, preventing backflow and improving the stability and reliability of the system. The safety valve prevents system overload and improves the stability and reliability of the system.

[0010] Furthermore, the skid-mounted transport assembly is also equipped with an overflow valve and a second check valve. One end of the overflow valve is connected to the other end of the pump-end unloading valve through a pipeline, and the other end of the overflow valve is connected to the pipeline between the water injection pump and the pneumatic shut-off valve through a pipeline.

[0011] The beneficial effects of adopting the above-mentioned further technical solutions are: the relief valve is used for overload protection, improving the stability and reliability of the system; the check valve ensures that the fluid can only flow in one direction, preventing backflow and further improving the stability and reliability of the system.

[0012] Furthermore, a first pressure gauge is provided on the pipeline between the ball valve and the oleo-nose four-way connector, and a second pressure gauge and a flow meter are provided on the pipeline between the variable frequency centrifugal pump and the oleo-nose four-way connector.

[0013] The beneficial effects of adopting the above-mentioned further technical solutions are: the setting of pressure gauges and flow meters facilitates pressure and flow measurement, and allows users to intuitively observe the system pressure, flow rate and working status.

[0014] Furthermore, a first filter and a second inlet ball valve are provided on the pipeline between the water tank and the water injection pump, and a second filter and an inlet butterfly valve are provided on the pipeline between the field water tank and the variable frequency centrifugal pump.

[0015] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the ball valve facilitates the opening and closing of the pipeline as needed, and facilitates the installation and maintenance of the water tank. The filter prevents impurities in the water tank and reservoir from entering the system, improving the stability and reliability of the system. The inlet butterfly valve facilitates the opening and closing of the pipeline as needed, and facilitates the installation and maintenance of the water tank.

[0016] Furthermore, the container unloading valve is connected in parallel with a manual unloading valve. The two ends of the manual unloading valve are connected to the two ends of the container unloading valve through pipelines. A manual plug valve is provided on the pipeline between the throttling and pressure regulating valve and the four-way oil connector. The valve bodies of the pump unloading valve, the pneumatic shut-off valve, the container unloading valve, and the manual unloading valve are integrated into one unit.

[0017] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the manual unloading valve facilitates active unloading as needed. The manual plug valve facilitates opening and closing the pipeline as needed. The valve bodies of the pump-end unloading valve, pneumatic shut-off valve, container unloading valve, and manual unloading valve are all integrated into one unit, each with an independent valve port. The valve body is designed with a signal acquisition interface, which facilitates the connection of external pressure sensors, flow sensors, pressure gauges, flow meters, and other metering tools.

[0018] Furthermore, the skid-mounted transport assembly includes: a skid-mounted chassis, an equipment transport box, multiple monitoring devices, a temperature control device, and a temperature detection device. The equipment transport box is installed on the top of the skid-mounted chassis, the multiple monitoring devices are installed at the top corner of the equipment transport box, the temperature control device is installed on the side wall of the equipment transport box, and the temperature detection device is installed on the top of the equipment transport box. The multiple monitoring devices, the temperature control device, and the temperature detection device are all connected to the remote control system.

[0019] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by integrating the testing device into a skid mount, an inspection and testing system that is easy to load and transport by vehicle is formed, enabling rapid application at fracturing operation sites. The inclusion of multiple monitoring devices, temperature control devices, and temperature detection devices facilitates monitoring of the system's internal operating status, improving the system's stability and reliability.

[0020] Furthermore, the present invention also provides a method for testing the performance of fracturing equipment, based on a fracturing equipment performance testing system described in any one of the above claims, the method comprising:

[0021] S1. When conducting the pump body pressure test, the remote control system sends the first control command to the electrical control system. According to the first control command, the electrical control system closes the pump end unloading valve and the container unloading valve, and opens the pneumatic shut-off valve, the test pump, and the water injection pump to increase the pressure of the fracturing equipment.

[0022] The first pressure sensor collects fluid pressure signals;

[0023] When the internal pressure reaches the target test pressure, close the pneumatic shut-off valve and open the pump end unloading valve to perform a pressure holding test.

[0024] When the pressure holding test is normal, close the pump end unloading valve, open the pneumatic shut-off valve, and perform a high-pressure test. The remote control system generates the first test result.

[0025] S2. When conducting water power test and overpressure protection device test, the remote control system sends a second control command to the electrical control system. The electrical control system closes the ball valve and starts the pressure regulating compensation component, fracturing equipment, and variable frequency centrifugal pump according to the second control command.

[0026] The second pressure sensor collects real-time pressure, the flow sensor collects real-time flow, and the photoelectric sensor collects spindle speed data of the fracturing equipment.

[0027] The pressure regulating and compensation component adjusts the pump end load of the fracturing equipment to achieve pressure regulation and compensation;

[0028] The remote control system generates a second test result based on real-time pressure, real-time flow, and spindle speed data.

[0029] The beneficial effects of adopting the technical solution of this invention are as follows: A performance testing system for fracturing equipment is designed based on the hydrostatic pressure testing principle and the water circulation pressure control testing method. It can perform pump body pressure resistance testing, pump power testing, and overpressure protection device testing and inspection on fracturing equipment, integrating multiple testing functions into one system. By integrating the testing device into a skid-mounted configuration, a testing and inspection system that is easy to load and transport by vehicle is formed, enabling rapid application at the fracturing operation site. Without affecting the current fracturing operation technology and on-site working conditions, it can utilize hydrostatic pressure testing technology and water circulation pump power testing technology to perform pump end pressure resistance testing, pump power testing, and overpressure protection device testing on on-site fracturing equipment, and quickly generate corresponding test analysis reports on the inspection and inspection results. This ensures the normal performance and safety functions of the fracturing equipment, thereby guaranteeing the effectiveness of fracturing operations and protecting the safety of personnel and property at the fracturing operation site. The pressure compensation technology using a pressure regulating compensation component works in conjunction with a pressure sensor. The pressure sensor periodically collects pressure signals from within the pressure manifold and feeds them back to the remote control system as electrical signals. The remote control system compares the set signal with the received signal and then sends an adjustment control signal to the pressure regulating compensation component. The component controls the opening degree, performing pressure build-up or release to control the fluid pressure within the pressure manifold assembly, thereby adjusting the pump end load of the fracturing equipment. It also adjusts the outlet flow rate to quickly compensate for the pressure within the manifold, maintaining relatively stable manifold pressure and forming a pressure regulation closed loop. This pressure compensation technology periodically adjusts the pressure within the manifold, reducing pressure fluctuations at the pump end of the fracturing pump. The timing interval for periodic pressure adjustment is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control accuracy. Shorter acquisition intervals require higher pressure sensor accuracy, more frequent control of the pressure regulating compensation component, higher control accuracy of the component, and more stable pressure within the manifold. Using pressure regulation compensation technology to control the pressure stability within the pressure manifold ensures greater accuracy in data acquisition, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0030] Furthermore, the step of adjusting the pump-end load of the fracturing equipment to achieve pressure compensation by the pressure regulating compensation component includes:

[0031] The remote control system compares the real-time pressure with the preset pressure and generates a third control command.

[0032] The electrical control system adjusts the variable frequency servo motor according to the third control command. The variable frequency servo motor drives the throttling and pressure regulating valve to adjust the pump end load of the fracturing equipment and realize pressure regulation compensation.

[0033] The beneficial effects of adopting the above-mentioned further technical solution are as follows: Using pressure compensation technology, the pressure compensation component works in conjunction with a pressure sensor. The pressure sensor periodically collects pressure signals within the pressure manifold and feeds them back to the remote control system in the form of electrical signals. The remote control system compares the set signal with the received signal and then sends an adjustment control signal to the variable frequency servo motor. The variable frequency servo motor controls the opening of the throttling pressure regulating valve to adjust the outlet flow rate, quickly compensating for the pressure within the pressure manifold and maintaining relatively stable manifold pressure, forming a pressure regulation closed loop. The pressure compensation technology periodically adjusts the pressure within the pressure manifold, reducing pressure fluctuations at the pump end of the test fracturing pump. The periodic adjustment interval is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control precision. A shorter acquisition interval requires higher precision from the pressure sensor, more frequent control of the variable frequency servo motor, higher control precision of the throttling pressure regulating valve, and more stable pressure within the pressure manifold. Using pressure compensation technology to control the stability of the pressure within the pressure manifold ensures higher data acquisition accuracy, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0034] The advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the fracturing equipment performance testing system provided in an embodiment of the present invention.

[0036] Figure 2 This is a schematic diagram of the hydrostatic pump body testing device provided in an embodiment of the present invention.

[0037] Figure 3 This is a schematic diagram of the water circulation testing device provided in an embodiment of the present invention.

[0038] Figure 4 This is a schematic flowchart illustrating the performance testing method for fracturing equipment provided in an embodiment of the present invention.

[0039] Reference numerals: 1. Hydrostatic pump body testing device; 2. Skid-mounted transport assembly; 3. Monitoring device; 4. Fracturing equipment; 5. Water circulation testing device; 6. Remote control system; 7. Electrical control system; 101. Water tank; 102. First inlet ball valve; 103. Test pump; 104. First check valve; 105. Pump end unloading valve; 106. Overflow valve; 107. Second check valve; 108. Pneumatic shut-off valve; 109. Ball valve; 110. First pressure gauge; 111. First pressure sensor; 112. Container unloading valve; 113. Manual unloading valve; 114. Water injection pump; 115. 116. First filter; 501. Second inlet ball valve; 502. Connecting pipe II; 503. Variable frequency servo motor; 504. Throttling and pressure regulating valve; 505. Manual plug valve; 506. Connecting pipe I; 507. Oil-sealed four-way connector; 508. Safety valve; 509. Photoelectric sensor; 510. Pneumatic unloading valve; 511. Pneumatic booster; 512. Connecting pipe III; 513. Second pressure gauge; 514. Flow meter; 515. Second pressure sensor; 516. Flow sensor; 517. Variable frequency centrifugal pump; 518. Second filter; 519. Inlet butterfly valve; 510. Field water tank. Detailed Implementation

[0040] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0041] like Figures 1 to 3As shown, this embodiment of the invention provides a fracturing equipment performance testing system, including: a skid-mounted transport assembly 2, fracturing equipment 4, a remote control system 6, an electrical control system 7, a water tank 101, a test pump 103, a pump end unloading valve 105, a pneumatic shut-off valve 108, a ball valve 109, a first pressure sensor 111, a container unloading valve 112, a water injection pump 114, a pressure regulating and compensation assembly, a 4-way connector 506, a photoelectric sensor 508, a second pressure sensor 514, a flow sensor 515, a variable frequency centrifugal pump 516, and a field water tank 519. The electrical control system 7, the water tank 101, the test pump 103, the pump end unloading valve 105, the pneumatic shut-off valve 108, the ball valve 109, the first pressure sensor 101, the container unloading valve 112, the water injection pump 114, the pressure regulating and compensation assembly, the 4-way connector 506, the photoelectric sensor 508, the second pressure sensor 514, the flow sensor 515, the variable frequency centrifugal pump 516, and the field water tank 519 are all included. Sensor 111, container unloading valve 112, water injection pump 114, pressure regulating and compensation assembly, oleo connector four-way 506, photoelectric sensor 508, second pressure sensor 514, flow sensor 515, variable frequency centrifugal pump 516, and on-site water tank 519 are all installed in the skid-mounted transport assembly 2. One end of the pressure testing pump 103 is connected to the water tank 101 via a pipeline. One end of the pump-end unloading valve 105 and one end of the pneumatic shut-off valve 108 are respectively connected to the other end of the pressure testing pump 103 via pipelines. The other end of the pump-end unloading valve 105 is connected to the water tank 101 via a pipeline. One end of the ball valve 109 is connected to the pneumatic shut-off valve via a pipeline. The other end of valve 108 is connected to the first end of ball valve 109 via a pipeline. The first pressure sensor 111 is installed on the pipeline between ball valve 109 and the grease fitting 506. One end of container unloading valve 112 is connected to water tank 101 via a pipeline, and the other end of container unloading valve 112 is connected to the pipeline between pneumatic shut-off valve 108 and ball valve 109 via a pipeline. One end of water injection pump 114 is connected to water tank 101 via a pipeline, and the other end of water injection pump 114 is connected to the other end of pump-end unloading valve 105 and the pipeline between pneumatic shut-off valve 108 and pressure test pump 103 via pipelines. The pressure regulating and compensation component is connected at one end and at one end of the variable frequency centrifugal pump 516 to the field water tank 519 via pipelines. The other end of the pressure regulating and compensation component is connected to the second end of the lip-fitted four-way connector 506 via a pipeline. The third end of the lip-fitted four-way connector 506 is connected to the fracturing equipment 4 via a pipeline. The photoelectric sensor 508 is installed on the pipeline between the lip-fitted four-way connector 506 and the fracturing equipment 4. The other end of the variable frequency centrifugal pump 516 is connected to the fourth end of the lip-fitted four-way connector 506 via a pipeline. The second pressure sensor 514 and the flow sensor 515 are installed on the pipeline between the variable frequency centrifugal pump 516 and the lip-fitted four-way connector 506.The electrical control system 7 is connected to the pressure testing pump 103, the pump end unloading valve 105, the pneumatic shut-off valve 108, the ball valve 109, the first pressure sensor 111, the container unloading valve 112, the water injection pump 114, the pressure regulating compensation component, the photoelectric sensor 508, the second pressure sensor 514, the flow sensor 515, and the variable frequency centrifugal pump 516. The remote control system 6 is connected to the electrical control system 7.

[0042] The beneficial effects of adopting the technical solution of this invention are as follows: A performance testing system for fracturing equipment is designed based on the hydrostatic pressure testing principle and the water circulation pressure control testing method. It can perform pump body pressure resistance testing, pump power testing, and overpressure protection device testing and inspection on fracturing equipment, integrating multiple testing functions into one system. By integrating the testing device into a skid-mounted configuration, a testing and inspection system that is easy to load and transport by vehicle is formed, enabling rapid application at the fracturing operation site. Without affecting the current fracturing operation technology and on-site working conditions, it can utilize hydrostatic pressure testing technology and water circulation pump power testing technology to perform pump end pressure resistance testing, pump power testing, and overpressure protection device testing on on-site fracturing equipment, and quickly generate corresponding test analysis reports on the inspection and inspection results. This ensures the normal performance and safety functions of the fracturing equipment, thereby guaranteeing the effectiveness of fracturing operations and protecting the safety of personnel and property at the fracturing operation site. The pressure compensation technology using a pressure regulating compensation component works in conjunction with a pressure sensor. The pressure sensor periodically collects pressure signals from within the pressure manifold and feeds them back to the remote control system as electrical signals. The remote control system compares the set signal with the received signal and then sends an adjustment control signal to the pressure regulating compensation component. The component controls the opening degree, performing pressure build-up or release to control the fluid pressure within the pressure manifold assembly, thereby adjusting the pump end load of the fracturing equipment. It also adjusts the outlet flow rate to quickly compensate for the pressure within the manifold, maintaining relatively stable manifold pressure and forming a pressure regulation closed loop. This pressure compensation technology periodically adjusts the pressure within the manifold, reducing pressure fluctuations at the pump end of the fracturing pump. The timing interval for periodic pressure adjustment is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control accuracy. Shorter acquisition intervals require higher pressure sensor accuracy, more frequent control of the pressure regulating compensation component, higher control accuracy of the component, and more stable pressure within the manifold. Using pressure regulation compensation technology to control the pressure stability within the pressure manifold ensures greater accuracy in data acquisition, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0043] in, Figure 1The dashed box on the left represents the hydrostatic pump body test device 1, and the dashed box on the right represents the water circulation test device 5. The throttling and pressure regulating valve 503 is connected to the on-site water tank 519 through connecting pipe II 501, the manual stopcock valve 504 is connected to the grease trap four-way connector 506 through connecting pipe I 505, and the variable frequency centrifugal pump 516 is connected to the grease trap four-way connector 506 through connecting pipe III 511.

[0044] The fracturing equipment performance testing system provided in this invention can perform pump-end pressure resistance testing, pump power testing, and overpressure protection device testing on fracturing equipment in the field without affecting the current fracturing operation technology and on-site conditions, using hydrostatic pressure testing technology and water circulation pump power testing technology. It can also quickly generate corresponding test analysis reports on the inspection and testing results to ensure the normal performance and safety functions of the fracturing equipment, thereby guaranteeing the effectiveness of fracturing operations and protecting the safety of personnel and property at the fracturing operation site. It can inspect and test the performance and functions of fracturing equipment and conveniently provide testing and test reports on-site, ensuring the safety of fracturing operations and fracturing equipment.

[0045] The fracturing equipment performance testing system may include a hydrostatic pump body testing device 1 and a water circulation testing device 5. The hydrostatic pump body testing device 1 and the water circulation testing device 5 are front-end execution devices, and the remote control system 6 is the back-end automated control and post-processing main body.

[0046] The hydrostatic pump body testing device 1 mainly includes: water injection components, pressurization components, regulating valve group, signal acquisition component I, high-pressure filter, inlet ball valve, water tank and other components; the water circulation testing device 5 mainly includes: pressure regulation compensation system components, pressure manifold components, circulating water supply components, signal acquisition component II, on-site water tank and other components; the electrical control system mainly includes electrical control cabinet, frequency converter control device, data transmission line I and other components; the skid-mounted relocation components mainly include: customized skid-mounted chassis, customized equipment relocation box and other components; the remote control system 6 mainly includes: remote manual operation box, remote control host computer, remote control automation system, fracturing equipment performance testing system monitoring device, data transmission line II and other components.

[0047] The water injection component of the hydrostatic pump body testing device 1 mainly includes a water injection pump 114, a water injection check valve, an inlet ball valve, a filter, and an overflow valve; the pressurization component mainly includes a high-pressure test pump, a high-pressure check valve, an inlet ball valve, a filter, and an overflow valve 106; the regulating valve group is a multi-valve block integration, including a pump end unloading valve 105, a pneumatic shut-off valve 108, a container unloading valve 112, and a manual unloading valve 113; the signal acquisition component mainly includes a pressure sensor, a high-pressure gauge, and other devices.

[0048] The regulating valve group is an integrated structure. The valve bodies of the pump end unloading valve 105, pneumatic shut-off valve 108, container unloading valve 112, and manual unloading valve 113 are all integrated into one unit, each with an independent valve port. The valve body is designed with a signal acquisition interface to facilitate the connection of external pressure sensors, flow sensors, pressure gauges, flow meters and other metering tools. The valve group is pneumatically controlled.

[0049] The pressure regulating and compensation system components mainly include a throttling pressure regulating valve 503, a pneumatic unloading valve 509, and a variable frequency servo motor 502; the pressure manifold components mainly include a safety valve 507, a lip connector, connecting pipe I 505, connecting pipe II 501, connecting pipe III 511, a high-pressure pipeline, a lip connector four-way valve 506, a manual plug valve 504, and a high-pressure ball valve; the circulating water supply components mainly include a variable frequency centrifugal pump 516, a filter, and an inlet butterfly valve 518; the signal acquisition components mainly include a pressure sensor, a flow sensor 515, a photoelectric sensor 508, a flow meter 513, and a pressure gauge, etc.

[0050] The water power test experiment used a pressure sensor to collect the actual output pressure P of the fracturing equipment 4, in MPa, and a flow sensor 515 to collect the actual flow rate Q of the fracturing equipment 4, in m³. 3 The pump power is calculated in the remote control system 6 according to the pump power calculation formula: p=P×Q, and the calculation is reflected in the test report.

[0051] In the water circulation test, a pressure compensation technology is used. The pressure compensation component works in conjunction with a pressure sensor. The pressure sensor periodically collects the pressure signal within the pressure manifold and feeds it back to the remote control system 6 as an electrical signal. After comparing the set signal with the received signal, the remote control system 6 sends an adjustment control signal to the variable frequency servo motor 502. The variable frequency servo motor 502 controls the opening of the throttling pressure regulating valve 503 to adjust the outlet flow rate, quickly compensating for the pressure within the pressure manifold and maintaining a relatively stable manifold pressure, forming a pressure regulation closed loop. This pressure compensation technology periodically adjusts the pressure within the pressure manifold, reducing pressure fluctuations at the pump end of the fracturing pump. The periodic adjustment interval is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control accuracy. The shorter the acquisition interval, the higher the accuracy requirement of the pressure sensor, the more frequent the control of the variable frequency servo motor 502, the higher the control accuracy of the throttling pressure regulating valve 503, and the more stable the pressure within the pressure manifold. Using pressure regulation compensation technology to control the pressure stability within the pressure manifold ensures greater accuracy in data acquisition, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0052] The hydrostatic pump body testing device 1 and the water circulation testing device 5 are connected in parallel and integrated into a testing system, which is installed on a customized skid chassis and placed in a customized equipment transport box.

[0053] The remote manual operation box of the remote control system 6 mainly has several function buttons that must be manually controlled, such as switch buttons and emergency stop buttons. The remote manual operation box is connected to the electrical control system 7 through a communication line.

[0054] The remote control system 6's remote control host computer is equipped with a remote control automation system. The remote control automation system mainly sends control signals to the electrical control system 7 based on the input test parameters and the underlying fixed program. The electrical control system 7 controls the test device to execute operation instructions. The remote control automation system (remote control system) has an emergency pressure relief shutdown function. It can also autonomously control the start and stop of the main pumps and valves in the hydrostatic pump body test device and the water circulation test device. It can collect, display, and store the data collected in the test device in real time, and has data loading analysis and report output functions. It can also customize analysis formulas to assist in data analysis and processing.

[0055] The maximum test pressure for fracturing equipment pump body pressure resistance testing, fracturing equipment pump power testing, and overpressure protection device testing and inspection can reach 150MPa. It is applicable to fracturing equipment with a pressure series of 140MPa and other pump bodies with an operating pressure not exceeding 150MPa. The pressure and flow rate values ​​corresponding to the tested fracturing equipment settings can be found in the table below.

[0056] Table 1:

[0057]

[0058]

[0059] The remote control method involves the remote control system 6 transmitting system control commands to the electrical control system 7 via a data communication line. The electrical control system 7 then sends control electrical signals to the hydrostatic pump body test device 1 and the water circulation test device 5, which in turn execute test actions.

[0060] The remote control system 6 is based on the C# system, including but not limited to the C# system, and has functions such as data aggregation, storage, analysis, data post-processing, and report generation.

[0061] The customized equipment transport box (equipment transport box) is equipped with a monitoring device, a temperature control device, and a temperature detection device. The monitoring device is installed at the four corners of the customized equipment transport box, the temperature sensor (temperature detection device) is installed at the top, and the air conditioning device (temperature control device) is installed on the side. The monitoring device, temperature control device, and temperature detection device are all connected to the remote control system 6 and are controlled and displayed by the remote control system 6.

[0062] With a simple structure and reasonable methodology, this system, based on the hydrostatic pressure testing principle and water circulation pressure control testing method, creatively proposes a hydrostatic pump body testing device and a water circulation testing device. Utilizing components such as high-pressure pumps, water injection pumps, centrifugal pumps, various control valves, frequency converters, pneumatic control devices, variable frequency servo motors, and pressure manifolds, it enables the testing and inspection of fracturing equipment, including pump body pressure resistance testing, pump power testing, and overpressure protection device testing. By integrating the testing devices into a skid-mounted system, it forms an easily transportable inspection and testing system that can be quickly applied at the fracturing operation site without affecting the fracturing operation. This allows for effective testing of the main performance and functions of the fracturing equipment, and the analysis and output of test reports based on the test data. Through inspection and testing, the system ensures the normal performance and safety functions of the fracturing equipment, thereby guaranteeing the effectiveness of fracturing operations and protecting the safety of personnel and property at the fracturing operation site. Compared to conventional high-pressure manifold testing methods, this invention overcomes the drawbacks of fixed, immobile testing instruments that hinder convenient on-site use. It enables timely testing at the fracturing site and integrates multiple testing functions, avoiding situations where single-function testing fails to meet requirements or results in incomplete testing, thus improving safety at the fracturing site. Furthermore, considering the characteristics of fracturing site equipment and facilities, this invention designs hydrostatic pump testing devices and water circulation testing devices based on hydrostatic pressure testing and water circulation testing methods, respectively. These devices can accurately perform pressure resistance testing on fracturing equipment. By applying pressure to the fracturing equipment, the actual output power and overpressure protection device functionality can be tested. The fracturing equipment performance testing system has a simple overall structure, automated control, and easy operation, effectively achieving real-time on-site testing for fracturing operations, preparing for subsequent fracturing operations and ensuring project quality. In actual operation, the same testing content for fracturing equipment with different parameters can be matched by setting system test parameters and adjusting test links according to actual working conditions. Moreover, testing of abandoned fracturing equipment can be achieved by replacing connecting manifolds.

[0063] like Figures 1 to 3 As shown, the pressure regulating compensation component further includes: a variable frequency servo motor 502, a throttling pressure regulating valve 503, a pneumatic unloading valve 509, and a pneumatic booster 510. The variable frequency servo motor 502 is connected to the throttling pressure regulating valve 503. One end of the throttling pressure regulating valve 503 is connected to the field water tank 519 via a pipeline, and the other end of the throttling pressure regulating valve 503 is connected to the second end of the oleo-nut four-way connector 506 via a pipeline. One end of the pneumatic unloading valve 509 is connected to the pipeline between the throttling pressure regulating valve 503 and the field water tank 519 via a pipeline, and the other end of the pneumatic unloading valve 509 is connected to the pipeline between the throttling pressure regulating valve 503 and the oleo-nut four-way connector 506 via a pipeline. The pneumatic booster 510 is connected to the pneumatic unloading valve 509.

[0064] The beneficial effects of adopting the above-mentioned further technical solution are as follows: Using the pressure compensation technology of the pressure compensation component, the component works in conjunction with a pressure sensor. The pressure sensor periodically collects pressure signals from within the pressure manifold and feeds them back to the remote control system in the form of electrical signals. The remote control system compares the set signal with the received signal and then sends an adjustment control signal to the variable frequency servo motor. The servo motor controls the opening of the throttling valve to either pressurize or depressurize, thus controlling the fluid pressure in the pressure manifold assembly and adjusting the pump-end load of the fracturing equipment. The outlet flow rate is adjusted to quickly compensate for the pressure within the manifold, maintaining relatively stable manifold pressure and forming a pressure regulation closed loop. This pressure compensation technology periodically adjusts the pressure within the manifold, reducing pressure fluctuations at the pump-end output of the fracturing pump. The timing interval for periodically adjusting the pressure within the manifold is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control accuracy. A shorter acquisition interval requires higher accuracy from the pressure sensor, more frequent control of the variable frequency servo motor, higher control accuracy of the throttling valve, and greater stability of the pressure within the manifold. Using pressure regulation compensation technology to control the pressure stability within the pressure manifold ensures greater accuracy in data acquisition, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0065] like Figures 1 to 3 As shown, further, a first inlet ball valve 102 is provided on the pipeline between the water tank 101 and the test pump 103, a first check valve 104 is provided on the pipeline between the test pump 103 and the pneumatic shut-off valve 108, and a safety valve 507 is provided on the grease fitting four-way 506.

[0066] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the ball valve facilitates the opening and closing of the pipeline according to actual needs, and facilitates the installation and maintenance of the water tank. The check valve ensures that the fluid can only flow in one direction, preventing backflow and improving the stability and reliability of the system. The safety valve prevents system overload and improves the stability and reliability of the system.

[0067] like Figures 1 to 3 As shown, the skid-mounted transfer assembly 2 is further provided with an overflow valve 106 and a second check valve 107. One end of the overflow valve 106 is connected to the other end of the pump end unloading valve 105 through a pipeline, and the other end of the overflow valve 106 is connected to the pipeline between the water injection pump 114 and the pneumatic shut-off valve 108 through a pipeline.

[0068] The beneficial effects of adopting the above-mentioned further technical solutions are: the relief valve is used for overload protection, improving the stability and reliability of the system; the check valve ensures that the fluid can only flow in one direction, preventing backflow and further improving the stability and reliability of the system.

[0069] like Figures 1 to 3 As shown, a first pressure gauge 110 is provided on the pipeline between the ball valve 109 and the oleo-nose four-way connector 506, and a second pressure gauge 512 and a flow meter 513 are provided on the pipeline between the variable frequency centrifugal pump 516 and the oleo-nose four-way connector 506.

[0070] The beneficial effects of adopting the above-mentioned further technical solutions are: the setting of pressure gauges and flow meters facilitates pressure and flow measurement, and allows users to intuitively observe the system pressure, flow rate and working status.

[0071] like Figures 1 to 3 As shown, further, a first filter 115 and a second inlet ball valve 116 are provided on the pipeline between the water tank 101 and the water injection pump 114, and a second filter 517 and an inlet butterfly valve 518 are provided on the pipeline between the field water tank 519 and the variable frequency centrifugal pump 516.

[0072] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the ball valve facilitates the opening and closing of the pipeline as needed, and facilitates the installation and maintenance of the water tank. The filter prevents impurities in the water tank and reservoir from entering the system, improving the stability and reliability of the system. The inlet butterfly valve facilitates the opening and closing of the pipeline as needed, and facilitates the installation and maintenance of the water tank.

[0073] like Figures 1 to 3 As shown, the container unloading valve 112 is further connected in parallel with a manual unloading valve 113. The two ends of the manual unloading valve 113 are connected to the two ends of the container unloading valve 112 through pipelines. A manual stopcock valve 504 is provided on the pipeline between the throttling and pressure regulating valve 503 and the oil-sealed four-way connector 506. The valve bodies of the pump-end unloading valve 105, the pneumatic shut-off valve 108, the container unloading valve 112, and the manual unloading valve 113 are integrated into one unit.

[0074] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the manual unloading valve facilitates active unloading as needed. The manual plug valve facilitates opening and closing the pipeline as needed. The valve bodies of the pump-end unloading valve, pneumatic shut-off valve, container unloading valve, and manual unloading valve are all integrated into one unit, each with an independent valve port. The valve body is designed with a signal acquisition interface, which facilitates the connection of external pressure sensors, flow sensors, pressure gauges, flow meters, and other metering tools.

[0075] like Figures 1 to 3As shown, the skid-mounted transport assembly 2 further includes: a skid-mounted chassis, an equipment transport box, multiple monitoring devices 3, a temperature control device, and a temperature detection device. The equipment transport box is installed on the top of the skid-mounted chassis, the multiple monitoring devices 3 are installed at the top corner of the equipment transport box, the temperature control device is installed on the side wall of the equipment transport box, and the temperature detection device is installed on the top of the equipment transport box. The multiple monitoring devices 3, the temperature control device, and the temperature detection device are all connected to the remote control system 6.

[0076] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by integrating the testing device into a skid mount, an inspection and testing system that is easy to load and transport by vehicle is formed, enabling rapid application at fracturing operation sites. The inclusion of multiple monitoring devices, temperature control devices, and temperature detection devices facilitates monitoring of the system's internal operating status, improving the system's stability and reliability.

[0077] Furthermore, the present invention also provides a method for testing the performance of fracturing equipment, based on a fracturing equipment performance testing system described in any one of the above claims, the method comprising:

[0078] S1. When conducting the pump body pressure test, the remote control system sends the first control command to the electrical control system. According to the first control command, the electrical control system closes the pump end unloading valve and the container unloading valve, and opens the pneumatic shut-off valve, the test pump, and the water injection pump to increase the pressure of the fracturing equipment.

[0079] The first pressure sensor collects fluid pressure signals;

[0080] When the internal pressure reaches the target test pressure, close the pneumatic shut-off valve and open the pump end unloading valve to perform a pressure holding test.

[0081] When the pressure holding test is normal, close the pump end unloading valve, open the pneumatic shut-off valve, and perform a high-pressure test. The remote control system generates the first test result.

[0082] S2. When conducting water power test and overpressure protection device test, the remote control system sends a second control command to the electrical control system. The electrical control system closes the ball valve and starts the pressure regulating compensation component, fracturing equipment, and variable frequency centrifugal pump according to the second control command.

[0083] The second pressure sensor collects real-time pressure, the flow sensor collects real-time flow, and the photoelectric sensor collects spindle speed data of the fracturing equipment.

[0084] The pressure regulating and compensation component adjusts the pump end load of the fracturing equipment to achieve pressure regulation and compensation;

[0085] The remote control system generates a second test result based on real-time pressure, real-time flow, and spindle speed data.

[0086] The beneficial effects of adopting the technical solution of this invention are as follows: A performance testing system for fracturing equipment is designed based on the hydrostatic pressure testing principle and the water circulation pressure control testing method. It can perform pump body pressure resistance testing, pump power testing, and overpressure protection device testing and inspection on fracturing equipment, integrating multiple testing functions into one system. By integrating the testing device into a skid-mounted configuration, a testing and inspection system that is easy to load and transport by vehicle is formed, enabling rapid application at the fracturing operation site. Without affecting the current fracturing operation technology and on-site working conditions, it can utilize hydrostatic pressure testing technology and water circulation pump power testing technology to perform pump end pressure resistance testing, pump power testing, and overpressure protection device testing on on-site fracturing equipment, and quickly generate corresponding test analysis reports on the inspection and inspection results. This ensures the normal performance and safety functions of the fracturing equipment, thereby guaranteeing the effectiveness of fracturing operations and protecting the safety of personnel and property at the fracturing operation site. The pressure compensation technology using a pressure regulating compensation component works in conjunction with a pressure sensor. The pressure sensor periodically collects pressure signals from within the pressure manifold and feeds them back to the remote control system as electrical signals. The remote control system compares the set signal with the received signal and then sends an adjustment control signal to the pressure regulating compensation component. The component controls the opening degree, performing pressure build-up or release to control the fluid pressure within the pressure manifold assembly, thereby adjusting the pump end load of the fracturing equipment. It also adjusts the outlet flow rate to quickly compensate for the pressure within the manifold, maintaining relatively stable manifold pressure and forming a pressure regulation closed loop. This pressure compensation technology periodically adjusts the pressure within the manifold, reducing pressure fluctuations at the pump end of the fracturing pump. The timing interval for periodic pressure adjustment is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control accuracy. Shorter acquisition intervals require higher pressure sensor accuracy, more frequent control of the pressure regulating compensation component, higher control accuracy of the component, and more stable pressure within the manifold. Using pressure regulation compensation technology to control the pressure stability within the pressure manifold ensures greater accuracy in data acquisition, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0087] Furthermore, the step of adjusting the pump-end load of the fracturing equipment to achieve pressure compensation by the pressure regulating compensation component includes:

[0088] The remote control system compares the real-time pressure with the preset pressure and generates a third control command.

[0089] The electrical control system adjusts the variable frequency servo motor according to the third control command. The variable frequency servo motor drives the throttling and pressure regulating valve to adjust the pump end load of the fracturing equipment and realize pressure regulation compensation.

[0090] The beneficial effects of adopting the above-mentioned further technical solution are as follows: Using pressure compensation technology, the pressure compensation component works in conjunction with a pressure sensor. The pressure sensor periodically collects pressure signals within the pressure manifold and feeds them back to the remote control system in the form of electrical signals. The remote control system compares the set signal with the received signal and then sends an adjustment control signal to the variable frequency servo motor. The variable frequency servo motor controls the opening of the throttling pressure regulating valve to adjust the outlet flow rate, quickly compensating for the pressure within the pressure manifold and maintaining relatively stable manifold pressure, forming a pressure regulation closed loop. The pressure compensation technology periodically adjusts the pressure within the pressure manifold, reducing pressure fluctuations at the pump end of the test fracturing pump. The periodic adjustment interval is determined by the pressure sensor's acquisition interval design and can be set according to the equipment's control precision. A shorter acquisition interval requires higher precision from the pressure sensor, more frequent control of the variable frequency servo motor, higher control precision of the throttling pressure regulating valve, and more stable pressure within the pressure manifold. Using pressure compensation technology to control the stability of the pressure within the pressure manifold ensures higher data acquisition accuracy, helps improve the accuracy and reliability of test results, and enhances the overall performance and testing capabilities of the device.

[0091] A fracturing equipment performance testing system mainly includes a hydrostatic pump body testing device 1, a water circulation testing device 5, an electrical control system 7, a skid-mounted transport assembly 2, and a remote control system 6. This system primarily tests and verifies the performance and functions of fracturing equipment, including fracturing equipment detection functions, real-time data acquisition functions, remote monitoring and control functions, data storage and analysis functions, and test result output functions. The hydrostatic pump body testing device 1 mainly performs pump body pressure resistance testing; the water circulation testing device 5 mainly performs pump power testing and overpressure protection device testing; the electrical control system 7 mainly provides PLC system electrical control for the hydrostatic pump body testing device 1 and the water circulation testing device 5; the skid-mounted transport assembly 2 mainly serves as a chassis to support the overall installation and fixation of the hydrostatic pump body testing device 1 and the water circulation testing device 5, and to facilitate the overall transport of the housing; the remote control system 6 connects to the electrical control system 7 via a data transmission line to remotely control the hydrostatic pump body testing device 1 and the water circulation testing device 5 with test commands.

[0092] like Figure 2 As shown, the hydrostatic pump body testing device 1 mainly includes a water tank 101, an inlet ball valve I (first inlet ball valve), a high-pressure test pump (test pump), a high-pressure check valve I (first check valve), a pump end unloading valve 105, an overflow valve 106, a high-pressure check valve II (second check valve), a pneumatic shut-off valve 108, a high-pressure ball valve, a high-pressure gauge (first pressure gauge), a pressure sensor (first pressure sensor), a container unloading valve 112, a manual unloading valve 113, a water injection pump 114, a filter (first filter), and an inlet ball valve II (second inlet ball valve).

[0093] When the hydrostatic pump body testing device 1 performs a pump body pressure resistance test, the electrical control system 7 and the remote control system 6 set parameters and control commands, close the pump end unloading valve 105, the container unloading valve 112, and the manual unloading valve 113, and keep the pneumatic shut-off valve 108 open. Fluid is pumped from the water tank 101 through the water injection pump 114, filtered through the filter (first filter), and then pumped into the hydrostatic pump body testing device 1. The high-pressure test pump (test pump) starts, pumping fluid from the water tank 101 into the hydrostatic pump body testing device 1. The high-pressure test pump (test pump) is used to inject liquid and increase the pressure in the hydrostatic pump body testing device 1, raising the pressure at the inlet of the fracturing equipment 4. This pressure is then transmitted through a pressure sensor. The device (first pressure sensor) and the high-pressure gauge (first pressure gauge) collect the fluid pressure signal in the hydrostatic pump body testing device 1. When the pressure inside the device reaches the test target pressure, the pneumatic shut-off valve 108 is closed and the pump end unloading valve 105 is opened to perform the pressure holding test. The machine is not stopped during the pressure holding. When the pressure holding time is reached and there is no abnormality in the test, the pump end unloading valve 105 is closed and the pneumatic shut-off valve 108 is opened. The high-pressure test pump 103 pressurizes the hydrostatic pump body testing device 1 to perform a higher pressure test. The remote control system 6 collects and stores the test data of the hydrostatic pump body testing device 1, analyzes and processes it, and issues the test result (first test result).

[0094] like Figure 3 As shown, the water circulation test device 5 mainly includes connecting pipe II 501, variable frequency servo motor 502, throttling and pressure regulating valve 503, manual plug valve 504, connecting pipe I 505, oleo-nut four-way connector 506, safety valve 507, photoelectric sensor 508, pneumatic unloading valve 509, pneumatic booster 510, connecting pipe III 511, pressure gauge (second pressure gauge), flow meter 513, pressure sensor (second pressure sensor), flow sensor 515, variable frequency centrifugal pump 516, filter (second filter), inlet butterfly valve 518, and on-site water tank 519.

[0095] During water power testing and overpressure protection device testing, the remote control system 6 selects the test mode and sets parameters. The electrical control system 7 issues control commands to close the high-pressure ball valve, keep the throttling and pressure regulating valve 503 and the pneumatic unloading valve 509 open, start the test fracturing equipment 4, and start the variable frequency centrifugal pump 516. The fluid is pumped from the field water tank 519 through the filter (second filter) to the inlet of the test fracturing equipment 4. The fluid enters the connecting pipe I 505 through the outlet of the test fracturing equipment 4, passes through the throttling and pressure regulating valve 503, and flows out of the throttling and pressure regulating valve 503 before returning to the field water tank 519 through the connecting pipe II 501, forming a circulation loop. By controlling the opening of the throttling and pressure regulating valve 503, pressure is controlled or released to regulate the fluid pressure in the pressure manifold assembly and adjust the pump end load of the test fracturing equipment 4. The pressure sensor (second pressure sensor) and flow sensor 515 collect the real-time pressure and flow during the test process to calculate the real-time output power of the test fracturing equipment 4. The photoelectric sensor 508 collects the spindle speed data of the fracturing equipment 4 and transmits the data to the remote control system 6 to monitor the load speed of the fracturing equipment 4 in real time. The remote control system 6 collects and stores the water power test experimental data, analyzes and processes it, and generates test results (second test results).

[0096] The performance testing method for fracturing equipment may include the following steps:

[0097] (1) Preparation: Before operating the fracturing equipment performance testing system, the supply end and output end of the fracturing equipment 4 to be tested are connected to the output and input ends of the pressure manifold of the testing system, respectively. After the equipment is powered on, the test items and test parameters are set in the remote control system 6, and the test is started.

[0098] (2) The testing steps of the hydrostatic pump body testing device 1 are as follows: a. Parameter setting: The test mode and test parameters are pre-filled on the remote control system 6, including the pressurization stage, pressurization value, and holding time. b. Water injection: The water injection component pumps fluid from the water tank into the hydrostatic pump body testing device 1, filling the connection end of the fracturing equipment 4 under test. c. Automatic testing: The pressurization component is started by the electrical control system 7 to inject water and increase the pressure. When the pressure inside the hydrostatic pump body testing device 1 reaches the preset pressure value, the pressure regulating component performs the holding pressure action to maintain the system pressure. After the holding time is reached, if it is necessary to continue pressurizing, the remote control system 6 issues an instruction to adjust the pressure regulating component, and the pressurization component continues to perform pressurization and holding pressure tests. After the last holding pressure is completed, the remote control system 6 controls the execution of the unloading and shutdown instruction to control the pressure regulating component to unload. After unloading is completed, the test ends. Save the records and generate curves and tables, and print the report.

[0099] (3) The pump power test steps are as follows: a. Parameter setting: The test mode and test parameters are pre-filled on the remote control system 6, including the pressure build-up value, pressure adjustment compensation time, and pressure adjustment compensation error. b. The remote control system 6 starts controlling the pressure test, fully opens the valve of the pressure adjustment compensation component, starts the circulating water supply component, starts the test fracturing equipment 4, and after stable operation, controls the pressure adjustment compensation component to adjust the pressure in the pressure manifold. When the pressure reaches the maximum allowable working pressure of the test setting, if the pump input speed does not decrease, the adjustment stops, and the signal acquisition device collects data such as pressure, flow rate, and input speed of the fracturing pump at this time. The remote control system 6 controls the pressure adjustment compensation component to perform pressure control and pressure compensation of the pressure manifold according to the preset pressure value, so that the output pressure of the fracturing pump is stabilized at around the set pressure. After the test is started, the remote control system 6 records the output pressure and flow rate of the pressure pump in real time, and processes and analyzes the data. The test report is output, and the test is completed.

[0100] (4) The test and inspection steps for the overpressure protection device are as follows: a. Parameter setting: Pre-fill the test mode and test parameters on the remote control system 6, including the test pressure setting. Each test is divided into two pressure levels, with the overpressure protection value set from low to high as 50% and 70% of the highest pressure of the test level, respectively. b. The remote control system controls the water circulation test device and the fracturing equipment to start and reach the rated speed. Adjust the pressure regulating compensation component to gradually increase the discharge pressure until the overpressure protection device is activated. Stop the adjustment, lock the pressure regulating compensation component, return the fracturing equipment to idle speed, record the protection activation pressure value, and depressurize the pressure regulating compensation component. Save the recorded data and curves, and print the test report.

[0101] like Figure 4 As shown, the hydrostatic pump body testing device of the fracturing equipment performance testing system performs the following steps: 1. Hydrostatic pump body test; 2. Input parameters; 3. Automatic water injection; 4. Automatic pressure increase; 5. Pressure holding without stopping the machine; 6. Pressure holding ends; 7. Continue pressure increase test; if normal, return to step 4; if abnormal, 8. Save and analyze test data; 9. Data post-processing; 10. Output test report.

[0102] The water circulation testing device of the fracturing equipment performance testing system performs the following steps: Step 11, water power test; Step 12, parameter input; Step 13, device start-up; Step 14, water circulation is established; Step 15, pressure is adjusted by the throttling valve; Step 16, the fracturing equipment is tested to reach the target pressure load; Step 17, rotational speed, pressure, and flow rate parameters are collected; Step 18, pressure increase test is continued. If normal, return to Step 15; if abnormal, Step 19, test data is saved and analyzed; Step 20, data post-processing; Step 21, test report is output.

[0103] The water circulation testing device of the fracturing equipment performance testing system performs the following steps: Step 31: Overpressure protection device test; Step 32: Set the trigger pressure of the overpressure protection device; Step 33: Start the device; Step 34: Form water circulation; Step 35: Adjust the pressure with the throttling and pressure regulating valve; Step 36: Trigger the overpressure protection device; Step 37: Collect pressure parameters; Step 38: Continue the pressure increase test. If normal, return to Step 35; if abnormal, Step 38: Save and analyze the test data; Step 39: Post-process the data; Step 40: Output the test report.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A performance testing system for fracturing equipment, characterized in that, include: The equipment includes a skid-mounted transport assembly (2), fracturing equipment (4), a remote control system (6), an electrical control system (7), a water tank (101), a pressure testing pump (103), a pump-end unloading valve (105), a pneumatic shut-off valve (108), a ball valve (109), a first pressure sensor (111), a container unloading valve (112), a water injection pump (114), a pressure regulating and compensation assembly, a 4-way connector (506), a photoelectric sensor (508), a second pressure sensor (514), a flow sensor (515), a variable frequency centrifugal pump (516), and a field water tank (519). The electrical control system (7), the water tank (101), the pressure testing pump (103), the pump-end unloading valve (105), and the pneumatic shut-off valve (108) are also included. The ball valve (109), the first pressure sensor (111), the container unloading valve (112), the water injection pump (114), the pressure regulating and compensation assembly, the grease trap four-way valve (506), the photoelectric sensor (508), the second pressure sensor (514), the flow sensor (515), the variable frequency centrifugal pump (516), and the field water tank (519) are all installed in the skid-mounted transport assembly (2). One end of the test pressure pump (103) is connected to the water tank (101) through a pipeline. One end of the pump end unloading valve (105) and one end of the pneumatic shut-off valve (108) are respectively connected to the other end of the test pressure pump (103) through pipelines. The other end of valve (105) is connected to the water tank (101) via a pipeline. One end of ball valve (109) is connected to the other end of pneumatic shut-off valve (108) via a pipeline. The other end of ball valve (109) is connected to the first end of grease fitting four-way (506) via a pipeline. The first pressure sensor (111) is installed on the pipeline between ball valve (109) and grease fitting four-way (506). One end of container unloading valve (112) is connected to the water tank (101) via a pipeline. The other end of container unloading valve (112) is connected to the pipeline between pneumatic shut-off valve (108) and ball valve (109) via a pipeline. One end of water pump (114) is connected to the pipeline via a pipeline. The water tank (101) is connected to the other end of the water injection pump (114), which is connected via pipeline to the other end of the pump end unloading valve (105) and the pipeline between the pneumatic shut-off valve (108) and the pressure test pump (103). One end of the pressure regulating compensation component and one end of the variable frequency centrifugal pump (516) are connected to the field water tank (519) via pipeline. The other end of the pressure regulating compensation component is connected via pipeline to the second end of the oleo-nose joint four-way (506). The third end of the oleo-nose joint four-way (506) is connected via pipeline to the fracturing equipment (4). The photoelectric sensor (508) is installed on the pipeline between the oleo-nose joint four-way (506) and the fracturing equipment (4).The other end of the variable frequency centrifugal pump (516) is connected to the fourth end of the grease fitting four-way (506) via a pipeline. The second pressure sensor (514) and the flow sensor (515) are installed on the pipeline between the variable frequency centrifugal pump (516) and the grease fitting four-way (506). The electrical control system (7) is connected to the test pressure pump (103), the pump end unloading valve (105), the pneumatic shut-off valve (108), the ball valve (109), the first pressure sensor (111), the container unloading valve (112), the water injection pump (114), the pressure regulating compensation component, the photoelectric sensor (508), the second pressure sensor (514), the flow sensor (515), and the variable frequency centrifugal pump (516). The remote control system (6) is connected to the electrical control system (7).

2. The fracturing equipment performance testing system according to claim 1, characterized in that, The pressure regulating compensation component includes: a variable frequency servo motor (502), a throttling pressure regulating valve (503), a pneumatic unloading valve (509), and a pneumatic booster (510). The variable frequency servo motor (502) is connected to the throttling pressure regulating valve (503). One end of the throttling pressure regulating valve (503) is connected to the field water tank (519) through a pipeline. The other end of the throttling pressure regulating valve (503) is connected to the second end of the oleo-nose joint four-way (506) through a pipeline. One end of the pneumatic unloading valve (509) is connected to the pipeline between the throttling pressure regulating valve (503) and the field water tank (519) through a pipeline. The other end of the pneumatic unloading valve (509) is connected to the pipeline between the throttling pressure regulating valve (503) and the oleo-nose joint four-way (506) through a pipeline. The pneumatic booster (510) is connected to the pneumatic unloading valve (509).

3. The fracturing equipment performance testing system according to claim 1, characterized in that, A first inlet ball valve (102) is provided on the pipeline between the water tank (101) and the test pump (103), a first check valve (104) is provided on the pipeline between the test pump (103) and the pneumatic shut-off valve (108), and a safety valve (507) is provided on the grease fitting four-way (506).

4. The fracturing equipment performance testing system according to claim 1, characterized in that, The skid-mounted transport assembly (2) is also equipped with an overflow valve (106) and a second check valve (107). One end of the overflow valve (106) is connected to the other end of the pump end unloading valve (105) through a pipeline, and the other end of the overflow valve (106) is connected to the pipeline between the water injection pump (114) and the pneumatic shut-off valve (108) through a pipeline.

5. The fracturing equipment performance testing system according to claim 1, characterized in that, A first pressure gauge (110) is provided on the pipeline between the ball valve (109) and the oleon joint four-way (506), and a second pressure gauge (512) and a flow meter (513) are provided on the pipeline between the variable frequency centrifugal pump (516) and the oleon joint four-way (506).

6. The fracturing equipment performance testing system according to claim 1, characterized in that, A first filter (115) and a second inlet ball valve (116) are provided on the pipeline between the water tank (101) and the water injection pump (114), and a second filter (517) and an inlet butterfly valve (518) are provided on the pipeline between the field water tank (519) and the variable frequency centrifugal pump (516).

7. The fracturing equipment performance testing system according to claim 1, characterized in that, The container unloading valve (112) is connected in parallel with a manual unloading valve (113). The two ends of the manual unloading valve (113) are connected to the two ends of the container unloading valve (112) through pipelines. A manual plug valve (504) is provided on the pipeline between the pressure regulating compensation component and the oil-sealed four-way connector (506). The valve bodies of the pump-end unloading valve (105), the pneumatic shut-off valve (108), the container unloading valve (112), and the manual unloading valve (113) are integrated into one unit.

8. The fracturing equipment performance testing system according to claim 1, characterized in that, The skid-mounted transport assembly (2) includes: a skid-mounted chassis, an equipment transport box, multiple monitoring devices, a temperature control device, and a temperature detection device. The equipment transport box is installed on the top of the skid-mounted chassis. The multiple monitoring devices are installed at the top corner of the equipment transport box. The temperature control device is installed on the side wall of the equipment transport box. The temperature detection device is installed on the top of the equipment transport box. The multiple monitoring devices, the temperature control device, and the temperature detection device are all connected to the remote control system (6).

9. A method for testing the performance of fracturing equipment, characterized in that, Based on any one of claims 1 to 8, the fracturing equipment performance testing system includes a fracturing equipment performance testing method comprising: S1. When conducting the pump body pressure test, the remote control system sends the first control command to the electrical control system. According to the first control command, the electrical control system closes the pump end unloading valve and the container unloading valve, and opens the pneumatic shut-off valve, the test pump, and the water injection pump to increase the pressure of the fracturing equipment. The first pressure sensor collects fluid pressure signals; When the internal pressure reaches the target test pressure, close the pneumatic shut-off valve and open the pump end unloading valve to perform a pressure holding test. When the pressure holding test is normal, close the pump end unloading valve, open the pneumatic shut-off valve, and perform a high-pressure test. The remote control system generates the first test result. S2. When conducting water power test and overpressure protection device test, the remote control system sends a second control command to the electrical control system. According to the second control command, the electrical control system closes the ball valve and starts the pressure regulating compensation component, fracturing equipment, and variable frequency centrifugal pump. The second pressure sensor collects real-time pressure, the flow sensor collects real-time flow, and the photoelectric sensor collects spindle speed data of the fracturing equipment. The pressure regulating and compensation component adjusts the pump end load of the fracturing equipment to achieve pressure regulation and compensation; The remote control system generates a second test result based on real-time pressure, real-time flow, and spindle speed data.

10. A method for testing the performance of fracturing equipment according to claim 9, characterized in that, The steps of adjusting the pump end load of the fracturing equipment to achieve pressure compensation by the pressure regulating compensation component include: The remote control system compares the real-time pressure with the preset pressure and generates a third control command. The electrical control system adjusts the variable frequency servo motor according to the third control command. The variable frequency servo motor drives the throttling and pressure regulating valve to adjust the pump end load of the fracturing equipment and realize pressure regulation compensation.

Images