A ram assembly performance testing system for a ram preventer

Abstract

The application relates to a ram preventer ram assembly performance test system, which comprises a test bench module, a simple ram preventer module, a drill pipe clamping module, an automatic suspension module, a hydraulic control module, a data acquisition module, a drill pipe test piece module and a control and interactive display module. The application integrates the display time of the ram closing process, the real-time picture of the closing and the oil pressure size, has the functions of automatic hoisting, clamping and shearing of the drill pipe, realizes comprehensive intelligent test of the shearing performance and sealing performance of the ram assembly, can increase the internal pressure of the drill pipe and check the sealing performance of the ram assembly after the ram assembly is closed, realizes simulation of actual operation and part of the environmental conditions of the ram preventer, can better eliminate the test error caused by external factors, the simple ram preventer module can be installed with different types of ram assemblies, the drill pipe clamping module can clamp drill pipes of different sizes, and different types of ram assemblies and different sizes of drill pipes can be freely combined.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of well control equipment for oil and gas production, in particular to a ram assembly performance test system of a ram preventer. BACKGROUND

[0002] In drilling and testing operations, well control systems are the key equipment for timely discovery and control of overflow, prevention of blowout, avoidance of waste of oil and gas resources, and protection of equipment and personnel safety. As one of the most critical well control equipment in emergency situations, the role of the ram preventer is to cut off the operating string and achieve well sealing to ensure the safety of surface equipment and personnel. For example, the "Deepwater Horizon" accident eventually led to the most serious blowout and oil spill accident in history due to the sealing failure of the ram assembly. Therefore, it is of great engineering significance to carry out ram assembly performance testing to test the sealing performance of semi-sealing rams and full-sealing rams, the shear and sealing performance of the ram assembly, and evaluate the shearability of drill pipes, in order to reduce the risk of blowout accidents.

[0003] Currently, there are test systems that can be applied to the performance testing of the ram assembly of the ram preventer, but they still have many problems in terms of function, efficiency, etc., mainly including the following aspects:

[0004] (1) The existing ram preventer ram assembly performance test system has low integration, few detection items, and limited data obtained from one test. Multiple tests are required for drill pipes of the same size to obtain more comprehensive data, resulting in resource waste and a long test process.

[0005] (2) The existing ram preventer ram assembly performance test system rarely shears drill pipes under simulated actual working conditions, does not shear drill pipes under conditions with high pressure inside the drill pipes when well kick or blowout occurs, and does not test the sealing performance of the ram assembly under pressure after the ram assembly is closed to seal the well.

[0006] (3) The existing ram preventer ram assembly performance test system has poor adaptability and cannot realize the combination of different types of ram assemblies and different sizes of drill pipes.

[0007] In order to effectively test the sealing performance of semi-sealing rams and full-sealing rams, the shear and sealing performance of the ram assembly, and evaluate the shearability of drill pipes, it is urgent to invent a ram preventer ram assembly performance test system that can be installed for different manufacturers, different models, different structures, and different specifications to realize comprehensive, accurate, efficient, and intelligent testing and evaluation of the working performance of the ram preventer ram assembly. SUMMARY

[0008] To meet the above requirements, this invention provides a gate assembly performance testing system for a gate blowout preventer. This invention integrates a data acquisition module and an interactive display module, enabling the acquisition of signals such as time, image, and pressure during gate testing, allowing for comprehensive data collection in a single test. The invention also includes a hydraulic control module, which can pressurize the drill pipe to the pressure under actual working conditions and test the sealing performance after well sealing following gate assembly closure. This simulates the gate closure scenario of the gate blowout preventer under certain actual working conditions, providing a theoretical basis for the development of gate assemblies and drill pipes. Furthermore, this invention includes a simplified gate blowout preventer module that can adapt to various models of gate assemblies from different companies, and a drill pipe clamping module that can clamp and fix drill pipes of common sizes, enabling various test combinations of different gate assembly models and drill pipe sizes.

[0009] The technical solution adopted by this invention to solve its technical problem is as follows: This invention relates to a performance testing system for a gate-mounted blowout preventer assembly. The system includes: a test bench module, a simplified gate-mounted blowout preventer module, a drill rod clamping module, an automatic suspension module, a hydraulic control module, a data acquisition module, a drill rod specimen module, and a control and interactive display module. The simplified gate-mounted blowout preventer module is mounted on the second layer of the test bench module using 40 identical bolts (I). The drill rod clamping module is mounted on a support platform above the simplified gate-mounted blowout preventer module using 8 identical bolts (II). The automatic suspension module is mounted on a ground track within the test bench module. The hydraulic control module is installed on the first layer of the test bench module. Various sensors from the data acquisition module are installed on their respective modules. The control and interactive display module is also installed on the first layer of the test bench module. The drill rod specimen module is hoisted and transported to the drill rod clamping module via an automatic suspension module. Rotating two cranks causes two flexible clamps to hold the drill rod specimen, and then the drill rod female threaded end cap is connected to the female threaded end of the drill rod. The test bench module includes underground anchors, ground rails, and stairs. The test bench module is divided into two layers (I and II). The test bench module is fixed to the ground by underground anchors to ensure stability. The ground rails provide access for the automatic suspension... The module is movable, with stairs connecting test benches I and II. The simple gate blowout preventer module includes a stabilizing platform, a small hydraulic press, a movable clamping platform, a pad, tooling fixtures, a gate assembly, a support platform, a stabilizing platform, and bolt I. The stabilizing platform includes a sleeve, double-ended bolts, a cover plate, and hydraulic line interface I. The small hydraulic press includes hydraulic line interface II, hydraulic line interface III, and a piston rod. The simple gate blowout preventer is used to install the gate assembly. The gate assembly is hoisted and moved to the movable clamping platform via an automatic suspension module. After installing the custom-sized pad and tooling fixtures, the gate assembly is fixed to the movable clamping platform with bolt III. Drill pipe clamping module package. Includes 8 identical bolts II, two identical threaded rods, two identical flexible clamps, and two identical cranks; the automatic suspension module includes a gantry, rollers, an electric hoist, a steel cable hook, a remote control, and a roller motor. The automatic suspension module is used to hoist drill rod specimens, gate assemblies, pads, fixtures, etc. The rollers are installed at the bottom of the gantry and can roll on the ground track driven by the roller motor. The electric hoist is installed on the gantry and can move laterally on the gantry beam. The steel cable hook is installed on the electric hoist. The roller motor is controlled by the remote control to move the gantry, and the electric hoist is controlled by the remote control to move the steel cable hook laterally and vertically.The hydraulic control module includes hydraulic pump I, hydraulic pump II, hydraulic pump III, hydraulic lines I, II, III, and IV. The module is used to pressurize the drill pipe interior and check the sealing performance after the gate is closed. Hydraulic line I is connected at one end to hydraulic line interface I and at the other end to hydraulic pump I. Hydraulic line II is connected at one end to hydraulic line interface III and at the other end to hydraulic pump II. Hydraulic line III is connected at one end to hydraulic line interface II and at the other end to hydraulic pump II. Hydraulic line IV is connected at one end to hydraulic pump III and at the other end to hydraulic line V. Hydraulic line V is connected to the drill pipe female plug; the data acquisition module includes hydraulic sensor I, hydraulic sensor II, hydraulic sensor III, and a miniature camera. The data acquisition module is used to collect various data during the gate assembly's closing process. Hydraulic sensor I is installed on hydraulic pump I and used to collect the pressure of hydraulic pump I; hydraulic sensor II is installed on hydraulic pump II and used to collect the pressure of hydraulic pump II; hydraulic sensor III is installed on hydraulic pump III and used to collect the pressure of hydraulic pump III; the miniature camera is installed at the bottom of the support platform and used to record the entire closing process of the gate assembly. The process; the drill pipe specimen module includes drill pipe, hydraulic line V, drill pipe male thread plug and drill pipe female thread plug. The drill pipe specimen module is used for shear and sealing tests. The drill pipe male thread plug is connected to the male thread end of the drill pipe, and the drill pipe female thread end is connected to the female thread plug. One end of hydraulic line V is connected to the female thread plug of the drill pipe, and the other end of hydraulic line V is connected to hydraulic line IV. The control and interactive display module includes a data display screen, pressure gauge I, pressure gauge II, pressure gauge III, hydraulic pump I switch, hydraulic pump II switch, hydraulic pump III switch, main power switch, and emergency brake button. The mutual display module is used to turn various machines on or off. The data display screen is used to display the duration of the gate assembly's closing process and the real-time closing image. Pressure gauge I displays the pressure of hydraulic pump I, pressure gauge II displays the pressure of hydraulic pump II, and pressure gauge III displays the pressure of hydraulic pump III. The hydraulic pump I switch controls the start and stop of hydraulic pump I, hydraulic pump II switch controls the start and stop of hydraulic pump II, and hydraulic pump III switch controls the start and stop of hydraulic pump III. The main power switch is used to turn the power on and off for the entire system. The emergency brake button is used to stop the entire system in an emergency.

[0010] The test bench is welded from steel and steel plates, and has sufficient strength and stability. The stairs are used to connect the first and second floors to facilitate workers to go up and down. The right end of the ground track is equipped with a limit block, which can limit the maximum displacement of the automatic suspension module.

[0011] The dimensions of the pad and tooling fixture in the simplified gate blowout preventer module need to be customized according to the dimensions of the gate assembly being tested.

[0012] The two flexible clamps are used to hold the diameter change section at the tail of the drill pipe, maintaining the stability of the drill pipe during the test.

[0013] The aforementioned male and female threaded plugs for drill pipes need to be equipped and replaced according to different drill pipe sizes.

[0014] The drill pipe specimen can be replaced with a shearing sub of the same size for testing.

[0015] The hydraulic sensor collects pressure signals and transmits them to a pressure gauge to display the real-time pressure.

[0016] The miniature camera can collect image signals during the closing process of the gate assembly and transmit them to the data display to show the image.

[0017] The bottom and sides of the movable clamping platform are provided with sealing strips.

[0018] The sealing strip can seal the gap between the two movable clamping platforms, the gap between the movable clamping platform and the stabilizing platform, and the gap between the gate assembly and the movable clamping platform.

[0019] The gate assembly includes any one of a fully enclosed gate assembly, a semi-enclosed gate assembly, and a shear gate assembly.

[0020] The steps are as follows:

[0021] When it is necessary to test the shear performance or sealing performance of a certain gate assembly (2-6);

[0022] Option A: When selecting the gate assembly (2-6) as the shear gate assembly;

[0023] A-S1: Select the drill rod of the corresponding size (7-1), measure the corresponding dimensional parameters of the shear gate assembly, and require that when the two shear gates are closed, the two movable clamping tables (2-3) at the bottom of them can also be closed. Then, according to the size of the shear gate, make two pads (2-4) and two tooling fixtures (2-5) of the corresponding size.

[0024] A-S2: The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to hoist the shear gate, pad (2-4) and tooling fixture (2-5) to the test bench module (1). The pad (2-4), shear gate and tooling fixture (2-5) are installed on the movable clamping platform (2-3) in sequence and connected and fixed with bolt III (2-5-1). Then the remote control automatic suspension module (4) returns to its original position.

[0025] A-S3: First, install the corresponding size drill rod male plug (7-3) on the male end of the drill rod (7-1). Then, the worker ties the drill rod (7-1) specimen to the steel cable hook (4-4). The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to lift the drill rod (7-1) specimen from the ground to the top of the simple gate blowout preventer module (2). Then, the worker operates the remote control (4-5) to lower the drill rod (7-1) specimen into the simple gate blowout preventer module (2). At the same time, another worker rotates the two cranks (3-4) to clamp the end of the drill rod (7-1) specimen at the diameter change and connect the drill rod female plug (7-4) to the female end of the drill rod (7-1). Then, remove the steel cable hook (4-4) and return the automatic suspension module (4) to its original position.

[0026] A-S4: Check each module for potential safety hazards and eliminate them in time. Then turn on the main power switch (8-8) and turn on the hydraulic pump III switch (8-7) to pressurize the drill rod (7-1) (simulating the internal pressure of the drill rod during a blowout). After pressurizing to the set value, maintain the pressure. Then turn on the hydraulic pump II switch (8-6) to push the piston rod (2-2-3) so that the two shear gates start to move towards each other to shear the drill rod (7-1) until the drill rod (7-1) is completely sheared. Then turn off the hydraulic pump II (5-2) and hydraulic pump III (5-3) in time. Loosen the flexible clamp (3-3) and the automatic suspension module (4) will move the upper part of the sheared drill rod (7-1) to an open area for subsequent fracture analysis.

[0027] A-S5: Turn on the hydraulic pump I switch (8-5) to pressurize the inside of the casing (2-1-1) to the set pressure value and maintain the pressure for a certain period of time to check the sealing performance of the shear gate after shearing the drill rod (7-1). The miniature camera (6-4) monitors and records the images and transmits them to the data display screen (8-1) to show the observation process. Then turn off the hydraulic pump I switch (8-5) and turn on the hydraulic pump II switch (8-6) to separate the shear gate. Loosen the double-headed bolt (2-1-2) and open the cover plate (2-1-3) to take out the lower half of the drill rod (7-1) specimen after it has been sheared. At this point, one test procedure is completed.

[0028] Option B: When selecting the gate assembly (2-6) as a fully enclosed gate assembly;

[0029] B-S1: Measure the corresponding dimensional parameters of the fully enclosed gate assembly. When the two fully enclosed gates are closed, the two movable clamping platforms (2-3) at their bottoms should also be closed. Then, according to the dimensions of the fully enclosed gates, make two pads (2-4) and two tooling fixtures (2-5) of the corresponding dimensions.

[0030] B-S2: The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to hoist the fully enclosed gate, pad (2-4) and tooling fixture (2-5) to the test bench module (1). The pad (2-4), fully enclosed gate and tooling fixture (2-5) are installed on the movable clamping platform (2-3) in sequence and connected and fixed with bolt III (2-5-1). Then the remote control automatic suspension module (4) returns to its original position.

[0031] B-S3: Check each module for potential safety hazards and eliminate them in time. Then turn on the main power switch (8-8), turn on the hydraulic pump II switch (8-6), push the piston rod (2-2-3) to make the two fully sealed gates move towards each other and close until they are completely closed, and then turn off the hydraulic pump II (5-2) in time.

[0032] B-S4: Turn on the hydraulic pump I switch (8-5) to pressurize the inside of the sleeve (2-1-1) to the set pressure value and maintain the pressure for a certain period of time to check the sealing performance after the full-sealing gate is closed. The miniature camera (6-4) monitors and records the images and transmits them to the data display screen (8-1) to display the observation process. Then turn off the hydraulic pump I switch (8-5) and turn on the hydraulic pump II switch (8-6) to open the full-sealing gate. At this point, one test procedure is completed.

[0033] Option C: When selecting the gate assembly (2-6) as a semi-sealed gate assembly;

[0034] C-S1: Select the drill rod of the corresponding size (7-1), measure the corresponding dimensional parameters of the semi-sealed gate assembly, and require that when the two shear gates are closed, the two movable clamping tables (2-3) at the bottom of them can also be closed. Then, according to the size of the shear gate, make two pads (2-4) and two tooling fixtures (2-5) of the corresponding size.

[0035] C-S2: The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to hoist the semi-enclosed gate, pad (2-4) and tooling fixture (2-5) onto the test bench module (1). The pad (2-4), semi-enclosed gate and tooling fixture (2-5) are then installed onto the movable clamping platform (2-3) and connected and fixed with bolt III (2-5-1). Then the remote control automatic suspension module (4) returns to its original position.

[0036] C-S3: First, install the corresponding size drill rod male plug (7-3) on the male end of the drill rod (7-1). Then, the worker ties the drill rod (7-1) specimen to the steel cable hook (4-4). The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to lift the drill rod (7-1) specimen from the ground to the top of the simple gate blowout preventer module (2). Then, the worker operates the remote control (4-5) to lower the drill rod (7-1) specimen into the simple gate blowout preventer module (2). At the same time, another worker rotates the two cranks (3-4) to clamp the end of the drill rod (7-1) specimen at the diameter change and connect the drill rod female plug (7-4) to the female end of the drill rod (7-1). Then, remove the steel cable hook (4-4) and return the automatic suspension module (4) to its original position.

[0037] C-S4: Check each module for potential safety hazards and eliminate them in time. Then turn on the main power switch (8-8) and turn on the hydraulic pump III switch (8-7) to pressurize the drill pipe (7-1) (simulating the internal pressure of the drill pipe during a blowout). After pressurizing to the set value, maintain the pressure. Then turn on the hydraulic pump II switch (8-6) to push the piston rod (2-2-3), which will cause the two semi-sealing gates to move towards each other and surround the drill pipe (7-1) until they completely surround the drill pipe (7-1). Then turn off the hydraulic pump II (5-2) and hydraulic pump III (5-3) in time.

[0038] C-S5: Turn on the hydraulic pump I switch (8-5) to pressurize the inside of the casing (2-1-1) to the set pressure value and maintain the pressure for a certain period of time to check the sealing performance after the semi-sealed gate plate surrounds the drill rod (7-1). The miniature camera (6-4) monitors and records the images and transmits them to the data display screen (8-1) to display the observation process. Then turn off the hydraulic pump I switch (8-5) and turn on the hydraulic pump II switch (8-6) to separate the semi-sealed gate plate. The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to move the drill rod (7-1) specimen. At this point, a test process is completed.

[0039] Throughout the test, the data acquisition module (6) will acquire images, pressure and time signals and transmit them to the control interaction display module (8) and display them on the corresponding instruments. Different models of gate assemblies (2-6) from different companies and different sizes of drill rods (7-1) can be replaced as needed to verify the shearing performance of different gate assemblies (2-6) on different drill rods and the sealing performance after the gate assembly is closed.

[0040] (1) The gate assembly performance testing system of the gate blowout preventer has the functions of automatic hoisting, clamping and shearing, and has a high degree of integration. The data collected in one test is comprehensive, which facilitates the intelligent testing of the gate assembly.

[0041] (2) The gate assembly performance testing system of the gate blowout preventer can simulate some actual working conditions for testing, namely the shearing condition when the drill pipe is under pressure and the sealing performance of the gate assembly after it is closed.

[0042] (3) The simple gate blowout preventer module has strong adaptability and can be adapted to different models of gate assemblies from different companies as well as drill pipes of various common sizes, so as to realize the performance testing and evaluation of various gate assemblies. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the system structure of the present invention;

[0044] Figure 2 This is a schematic diagram of the simplified blowout preventer module of the present invention;

[0045] Figure 3 This is a schematic diagram of the structure of the stabilization stage of the present invention;

[0046] Figure 4 This is a schematic diagram of the movable clamping stage of the present invention;

[0047] Figure 5 This is a flowchart of the steps of the present invention.

[0048] In the accompanying drawings, the same reference numerals refer to the same parts. Specifically, the meanings of the reference numerals in the accompanying drawings are as follows:

[0049] In the diagram: 1-Test bench module, 2-Simple gate blowout preventer module, 3-Drill rod clamping module, 4-Automatic suspension module, 5-Hydraulic control module, 6-Data acquisition module, 7-Drill rod specimen module, 8-Interactive display module, 1-1-Underground fixed anchor, 1-2-Ground track, 1-3-Staircase, 2-1-Stabilizing platform, 2-101-Slide groove, 2-102-Threaded hole I, 2-103-Threaded hole II, 2-104-Threaded hole III, 2-2-Small hydraulic press, 2-3-Movable Clamping platform, 2-301-Threaded hole IV, 2-302-Slide rail, 2-303-Sealing groove, 2-4-Push plate, 2-5-Tooling fixture, 2-5-1-Bolt III, 2-6-Gate assembly, 2-7-Support platform, 2-8-Bolt I, 2-701-Threaded hole V, 2-1-1-Sleeve, 2-1-2-Double-ended bolt, 2-1-3-Cover plate, 2-1-4-Hydraulic pipeline interface I, 2-2-1-Hydraulic pipeline interface II, 2-2-2-Hydraulic pipeline interface III, 2-2-3 - Piston rod, 2-2-4- Bolt IV, 3-1- Bolt II, 3-2- Screw, 3-3- Flexible clamp, 3-4- Handle, 4-1- Gantry, 4-2- Roller, 4-3- Electric hoist, 4-4- Cable hook, 4-5- Remote control, 4-6- Roller motor, 5-1- Hydraulic pump I, 5-2- Hydraulic pump II, 5-3- Hydraulic pump III, 5-1-1- Hydraulic line I, 5-2-1- Hydraulic line II, 5-2-2- Hydraulic line III, 5-3-1- Hydraulic line IV, 6 -1-Hydraulic sensor I, 6-2-Hydraulic sensor II, 6-3-Hydraulic sensor III, 6-4-Miniature camera, 7-1-Drill pipe, 7-2-Hydraulic line V, 7-3-Drill pipe male thread plug, 7-4-Drill pipe female thread plug, 8-1-Data display screen, 8-2-Pressure gauge I, 8-3-Pressure gauge II, 8-4-Pressure gauge III, 8-5-Hydraulic pump I switch, 8-6-Hydraulic pump II switch, 8-7-Hydraulic pump III switch, 8-8-Main power switch, 8-9-Emergency brake button. Detailed Implementation

[0050] The technical solution of the present invention will be further described in detail below through specific embodiments.

[0051] A performance testing system for a gate-type blowout preventer assembly includes: a test bench module, a simplified gate-type blowout preventer module, a drill pipe clamping module, an automatic suspension module, a hydraulic control module, a data acquisition module, a drill pipe specimen module, and a control and interactive display module. The simplified gate-type blowout preventer module is mounted on the second layer of the test bench module using 40 identical bolts (I). The drill pipe clamping module is mounted on a support platform on the upper part of the simplified gate-type blowout preventer module using 8 identical bolts (II). The automatic suspension module is mounted on a ground track within the test bench module. The hydraulic control module is mounted on the second layer of the test bench module. Layer I: Various sensors in the data acquisition module are installed on their respective modules. The control and interactive display module is installed on Layer I of the test bench module. The drill rod specimen module is hoisted and transported to the drill rod clamping module via the automatic suspension module. Rotating two cranks causes two flexible clamps to hold the drill rod specimen, and then the drill rod female plug is connected to the female end of the drill rod. The test bench module includes underground fixed anchors, ground tracks, and stairs. The test bench module is divided into Layer I and Layer II. The test bench module is fixed to the ground by underground fixed anchors to ensure the stability of the test bench. The ground tracks allow the automatic suspension module to move, and the stairs... Connect test bench layers I and II; the simple gate blowout preventer module includes a stabilizing platform, a small hydraulic press, a movable clamping platform, a pad, tooling fixtures, a gate assembly, a support platform, a stabilizing platform, and bolt I. The stabilizing platform includes a sleeve, double-ended bolts, a cover plate, and hydraulic line interface I. The small hydraulic press includes hydraulic line interface II, hydraulic line interface III, and a piston rod. The simple gate blowout preventer is used to shear drill pipe specimens. The gate assembly is hoisted and transported to the movable clamping platform via an automatic suspension module. After installing the custom-sized pad and tooling fixtures, the gate assembly is fixed to the movable clamping platform. The drill pipe clamping module includes... Eight identical bolts II, two identical threaded rods, two identical flexible clamps, and two identical cranks; the automatic suspension module includes a gantry, rollers, an electric hoist, a steel cable hook, a remote control, and a roller motor. The automatic suspension module is used to hoist drill rod specimens and gate assemblies. The rollers are installed at the bottom of the gantry and can roll on the ground track driven by the roller motor. The motor hoist is installed on the gantry and can move laterally on the gantry beam. The steel cable hook is installed on the electric hoist. The roller motor is controlled by the remote control to move the gantry, and the electric hoist is controlled by the remote control to move laterally and vertically, and to move the steel cable hook vertically.The hydraulic control module includes hydraulic pump I, hydraulic pump II, hydraulic pump III, hydraulic lines I, II, III, and IV. This module is used to pressurize the drill pipe internally and check the sealing of the gate assembly after shearing the drill pipe. One end of hydraulic line I is connected to hydraulic line interface I, and the other end is connected to hydraulic pump I. One end of hydraulic line II is connected to hydraulic line interface III, and the other end is connected to hydraulic pump II. One end of hydraulic line III is connected to hydraulic line interface II, and the other end is connected to hydraulic pump II. One end of hydraulic line IV is connected to hydraulic pump III, and the other end of hydraulic line IV is connected to hydraulic line V. The other end of hydraulic line V is connected to the drill pipe female plug. The data acquisition module includes hydraulic sensor I, hydraulic sensor II, hydraulic sensor III, and a miniature camera. The data acquisition module is used to collect various data during the shearing process of the gate assembly on the drill pipe specimen. Hydraulic sensor I is installed on hydraulic pump I and is used to collect the pressure of hydraulic pump I. Hydraulic sensor II is installed on hydraulic pump II and is used to collect the pressure of hydraulic pump II. Hydraulic sensor III is installed on hydraulic pump III and is used to collect the pressure of hydraulic pump III. A camera is installed at the bottom of the support platform to record the process of the drill rod specimen being sheared. The drill rod specimen module includes a drill rod, hydraulic line V, a male thread plug, and a female thread plug. The drill rod specimen module is used for shear testing. The male thread plug is connected to the male thread end of the drill rod, and the female thread end is connected to the female thread plug. One end of hydraulic line V is connected to the female thread plug, and the other end of hydraulic line V is connected to hydraulic line IV. The control and interactive display module includes a data display screen, pressure gauge I, pressure gauge II, pressure gauge III, hydraulic pump I switch, hydraulic pump II switch, hydraulic pump III switch, and power supply. The system includes a main switch, an emergency stop button, and an interactive display module for starting and stopping various machines. A data display screen shows the shearing process duration and real-time video. Pressure gauges I, II, and III display the pressure of hydraulic pumps I, II, and III. Switches for each type of pump control the start and stop of different pumps. The main power switch controls the power supply to the entire system. The emergency stop button is used to stop the entire system in an emergency.

[0052] The workflow of this invention is as follows:

[0053] When the gate assembly is selected as a shear gate assembly;

[0054] First, select drill pipes of the corresponding size and measure the corresponding dimensional parameters of the shear gate assembly. It is required that when the two shear gates are closed, the two corresponding movable clamping platforms at their bottoms can also close. Then, based on the dimensions of the shear gates, fabricate two pads and two tooling fixtures of the corresponding dimensions. Next, a worker operates a remote control to remotely control the automatic suspension module to hoist the shear gates, pads, and tooling fixtures onto the test bench module. The pads, shear gates, and tooling fixtures are then sequentially installed onto the movable clamping platforms and secured with bolts III. The automatic suspension module is then returned to its original position. Next, install the corresponding dimensional drill pipe male thread plug onto the male thread end of the drill pipe. The worker then binds the drill pipe specimen to the steel cable hook. Using the remote control, the worker uses the automatic suspension module to hoist the drill pipe specimen from the ground to above the simple gate blowout preventer module. Then, using the remote control, the drill pipe specimen is lowered into the simple gate blowout preventer module. Simultaneously, another worker rotates two cranks to clamp the end of the drill pipe specimen at the diameter reduction point and connects the drill pipe female thread plug to the female thread end of the drill pipe. Finally, the steel cable is removed. The hook is then pulled back to its original position, and the automatic suspension module is returned to its original position. Next, each module is checked for safety hazards and any issues are addressed promptly. Then, the main power switch is turned on, and the hydraulic pump III switch is turned on to pressurize the drill pipe (simulating the pressure inside the drill pipe during a blowout). After pressurizing to the set value, the pressure is maintained. Then, the hydraulic pump II switch is turned on to push the piston rod, causing the two shearing gates to move towards each other and shear the drill pipe until it is completely cut. The hydraulic pumps II and III are then turned off promptly. The flexible clamp is loosened, and the automatic suspension module transports the upper half of the drill pipe to an open area for subsequent fracture analysis. Finally, the hydraulic pump I switch is turned on to pressurize the casing to the set pressure value and maintain the pressure for a certain time to check the sealing performance of the shearing gates after shearing the drill pipe. A miniature camera monitors and records the images, which are then transmitted to a data display screen to show the observation process. The hydraulic pump I switch is then turned off, and the hydraulic pump II switch is turned on to separate the shearing gates. The double-headed bolts and nuts are loosened, and the cover plate is opened to remove the lower half of the cut drill pipe specimen. This completes one test procedure.

[0055] When selecting the gate assembly as a fully enclosed gate assembly;

[0056] First, measure the corresponding dimensional parameters of the fully enclosed gate assembly, ensuring that the two movable clamping platforms at its bottom can also close when both gates are closed. Then, fabricate two pads and two tooling fixtures of corresponding dimensions based on the gate dimensions. Next, a worker operates a remote control to remotely control the automatic suspension module to hoist the gates, pads, and tooling fixtures onto the test bench module. The pads, gates, and tooling fixtures are then sequentially installed onto the movable clamping platforms and secured with bolts III. The automatic suspension module is then remotely controlled to return to its original position. Finally, check each module for any issues. All potential hazards were identified and eliminated promptly. Then, the main power switch was turned on, and the hydraulic pump II switch was turned on to push the piston rod, causing the two fully sealed gates to move towards each other and close until they were completely closed. After that, the hydraulic pump II was turned off in time. Finally, the hydraulic pump I switch was turned on to pressurize the inside of the bushing to the set pressure value and maintain the pressure for a certain period of time to check the sealing performance of the fully sealed gates after they were closed. The miniature camera monitored and recorded the images and transmitted them to the data display screen to show the observation process. Then, the hydraulic pump I switch was turned off and the hydraulic pump II switch was turned on to separate the fully sealed gates. At this point, one test procedure was completed.

[0057] When the gate assembly is selected as a semi-enclosed gate assembly;

[0058] First, select drill pipes of the corresponding size and measure the corresponding dimensional parameters of the semi-sealed gate assembly. It is required that when the two shear gates are closed, the two corresponding movable clamping platforms at their bottoms can also close. Then, based on the dimensions of the shear gates, fabricate two pads and two tooling fixtures of the corresponding dimensions. Next, a worker operates a remote control to remotely control the automatic suspension module to hoist the semi-sealed gates, pads, and tooling fixtures onto the test bench module. The pads, semi-sealed gates, and tooling fixtures are then installed sequentially onto the movable clamping platforms and secured with bolts III. The automatic suspension module is then returned to its original position. Next, install the corresponding dimensional drill pipe male thread plug onto the male thread end of the drill pipe. The worker then binds the drill pipe specimen to the steel cable hook. Using the remote control, the worker operates the automatic suspension module to hoist the drill pipe specimen from the ground to above the simple gate blowout preventer module. Then, using the remote control, the drill pipe specimen is lowered into the simple gate blowout preventer module. Simultaneously, another worker rotates two cranks to clamp the end diameter reduction section of the drill pipe specimen. Connect the drill pipe end cap to the drill pipe end cap, then remove the steel cable hook and return the automatic suspension module to its original position. Next, check each module for safety hazards and eliminate them promptly. Then, turn on the main power switch and turn on the hydraulic pump III switch to pressurize the drill pipe (simulating the pressure inside the drill pipe during a blowout). After pressurizing to the set value, maintain the pressure. Then, turn on the hydraulic pump II switch to push the piston rod, causing the two semi-sealing gates to move towards each other and encircle the drill pipe until they completely encircle it. Then, promptly turn off hydraulic pumps II and III. Finally, turn on the hydraulic pump I switch to pressurize the casing to the set pressure value and maintain the pressure for a certain time to check the sealing performance after the semi-sealing gates have encircled the drill pipe. A miniature camera monitors and records the images, transmitting them to the data display screen to show the observation process. Then, turn off the hydraulic pump I switch and turn on the hydraulic pump II switch to separate the semi-sealing gates. The worker operates the remote control to move the drill pipe specimen using the automatic suspension module. This completes one test procedure.

[0059] Throughout the test, the data acquisition module collects images, pressure, and time signals, which are transmitted to the data control and interactive display module and displayed on the corresponding instruments. Different models of gate assemblies from different companies and different sizes of drill pipes can be replaced as needed to verify the shearing performance of different gate assemblies on different drill pipes and the sealing performance after the gate assembly is closed.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this patent without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A performance testing system for a gate assembly of a blowout preventer, characterized in that, include: The test bench module (1), the simple gate blowout preventer module (2), the drill pipe clamping module (3), the automatic suspension module (4), the hydraulic control module (5), the data acquisition module (6), the drill pipe specimen module (7), and the control interaction display module (8) are included. The test bench module (1) includes an underground fixed anchor (1-1), a ground track (1-2), and a staircase (1-3). The simple gate blowout preventer module (2) includes a stabilizing platform (2-1), a small hydraulic press (2-2), a movable clamping platform (2-3), a pad (2-4), a tooling fixture (2-5), a gate assembly (2-6), a support platform (2-7), and bolt I (2-8). The stabilizing platform (2-1) includes a sleeve (2 -1-1), double-headed bolt (2-1-2), cover plate (2-1-3) and hydraulic pipeline interface I (2-1-4), small hydraulic press (2-2) includes hydraulic pipeline interface II (2-2-1), hydraulic pipeline interface III (2-2-2), piston rod (2-2-3) and bolt IV (2-2-4), the movable clamping table (2-3) is equipped with sealing strips, the gate assembly (2-6) includes any one of full-sealed gate assembly, semi-sealed gate assembly and shearing gate assembly; the drill rod clamping module (3) includes bolt II (3-1), screw (3-2), flexible clamp (3-3) and crank (3-4); the automatic suspension module (4) includes gantry (4-1), roller The system includes a wheel (4-2), an electric hoist (4-3), a steel cable hook (4-4), a remote control (4-5), and a roller motor (4-6); the hydraulic control module (5) includes hydraulic pump I (5-1), hydraulic pump II (5-2), hydraulic pump III (5-3), hydraulic pipeline I (5-1-1), hydraulic pipeline II (5-2-1), hydraulic pipeline III (5-2-2), and hydraulic pipeline IV (5-3-1); the data acquisition module (6) includes hydraulic sensor I (6-1), hydraulic sensor II (6-2), hydraulic sensor III (6-3), and a miniature camera (6-4); the drill rod specimen module (7) includes a drill rod (7-1), hydraulic pipeline V (7-2), and drill rod Male threaded plug (7-3) and female threaded plug (7-4) of drill pipe; one end of hydraulic line I (5-1-1) is connected to hydraulic line interface I (2-1-4), and the other end is connected to hydraulic pump I (5-1); one end of hydraulic line II (5-2-1) is connected to hydraulic line interface III (2-2-2), and the other end is connected to hydraulic pump II (5-2); one end of hydraulic line III (5-2-2) is connected to hydraulic line interface II (2-2-1), and the other end is connected to hydraulic pump II (5-2); one end of hydraulic line IV (5-3-1) is connected to hydraulic pump III (5-3), and the other end is connected to hydraulic line V (7-2); hydraulic line V (7-2) is connected to female threaded plug (7-4) of drill pipe.The control and interactive display module (8) includes a data display screen (8-1), pressure gauge I (8-2), pressure gauge II (8-3), pressure gauge III (8-4), hydraulic pump I switch (8-5), hydraulic pump II switch (8-6), hydraulic pump III switch (8-7), main power switch (8-8), and emergency brake button (8-9).

2. The performance testing system for a gate assembly of a blowout preventer according to claim 1, characterized in that, The test bench module (1) is divided into layers I and II. The test bench module (1) is fixed to the ground by multiple identical underground anchors (1-1) to ensure the stability of the test bench. Two ground tracks (1-2) are symmetrically distributed for the automatic suspension module (4) to move. The stairs (1-3) connect the test bench layers I and II.

3. The performance testing system for a gate assembly of a blowout preventer according to claim 1, characterized in that, The stabilizing platform (2-1) is mounted on layer II of the test bench module (1) by bolt I (2-8). The movable clamping platform (2-3) is mounted on the stabilizing platform (2-101) via the bottom slide rail (2-302) and can slide left and right. The small hydraulic press (2-2) is connected to the stabilizing platform (2-1) by bolt IV (2-2-4). The gate assembly (2-6) is mounted on the movable clamping platform (2-3) and clamped by a custom-sized tooling fixture (2-5). The tooling fixture (2-5) is fixed to the movable clamping table (2-3) by bolt III (2-5-1). Different thickness pads (2-4) and customized tooling fixtures (2-5) are installed to fit different sizes of gate assemblies (2-6). Two small hydraulic presses (2-2), movable clamping table (2-3), pads (2-4), tooling fixtures (2-5), and gate assemblies (2-6) are symmetrically installed on the stabilizing platform (2-1). The stabilizing platform (2-1) is equipped with screws... Hole I (2-102), threaded hole II (2-103), and threaded hole III (2-104). A movable clamping platform (2-3) has a threaded hole IV (2-301) and a sealing groove (2-303). A sealing strip is installed in the sealing groove (2-303). The movable clamping platform (2-3) is connected to the piston rod (2-2-3) on a small hydraulic press (2-2). By controlling the opening of hydraulic pump II (5-2), the two symmetrically installed small hydraulic presses (2-2) push the piston rod (2-104) towards each other. -2-3) This causes the gate assembly (2-6) installed on the movable clamping platform (2-3) to move towards each other to shear the drill rod specimen. When the two gate assemblies (2-6) are closed, the two movable clamping platforms (2-3) are also closed. The sealing strip seals all the gaps between the two movable clamping platforms (2-3), the gap between the movable clamping platform (2-3) and the stabilizing platform (2-1), and the gap between the gate assembly (2-6) and the movable clamping platform (2-3) so as to facilitate the subsequent sealing test.

4. The performance testing system for a gate assembly of a blowout preventer according to claim 1, characterized in that, The drill rod clamping module (3) is used to clamp the drill rod (7-1) specimen. The drill rod clamping module (3) is installed on the support platform (2-7) by bolt II (3-1). Rotating the rocker handle (3-4) drives the rotation of the lead screw (3-2) to move the flexible clamp (3-3) axially to the left. Rotating the same rocker handle (3-4) drives the rotation of the same lead screw (3-2) to move the same flexible clamp (3-3) axially to the right. The two flexible clamps (3-3) move towards each other to clamp and fix the drill rod specimen module (7).

5. The gate assembly performance testing system for a blowout preventer according to claim 1, characterized in that, The automatic suspension module (4) is used to hoist and transport the drill rod (7-1) and the gate assembly (2-6) to be tested to the test platform. The roller (4-2) is installed at the bottom of the gantry (4-1). The roller motor (4-6) drives the roller (4-2) to roll on the ground track (1-2). The electric hoist (4-3) is installed on the gantry (4-1) and can move laterally on the gantry beam. The steel cable hook (4-4) is installed on the electric hoist (4-3). The roller motor (4-6) is controlled by the remote controller (4-5) to move the gantry (4-1). The electric hoist (4-3) is controlled by the remote controller (4-5) to move the steel cable hook (4-4) laterally and vertically.

6. The performance testing system for a gate assembly of a blowout preventer according to claim 1, characterized in that, The hydraulic control module (5) is used to pressurize the inside of the drill rod (7-1) and pressurize the inside of the casing (2-1-1) after the gate assembly (2-6) cuts the drill rod (7-1) to check the sealing performance inside the gate assembly (2-6) after shearing the drill rod (7-1).

7. The performance testing system for a gate assembly of a blowout preventer according to claim 1, characterized in that, The data acquisition module (6) is used to acquire pressure, time and image data of the simple gate blowout preventer module (2) during the shearing of the drill rod (7-1) specimen or the gate assembly (2-6) during closure. Hydraulic sensor I (6-1) is installed on hydraulic pump I (5-1) and is used to acquire the pressure of hydraulic pump I (5-1). Hydraulic sensor II (6-2) is installed on hydraulic pump II (5-2) and is used to acquire the pressure of hydraulic pump II (5-2). Hydraulic sensor III (6-3) is installed on hydraulic pump III (5-3) and is used to acquire the pressure of hydraulic pump III (5-3). Miniature camera (6-4) is installed at the bottom of the support platform (2-7) to record the entire process of the drill rod (7-1) specimen being sheared or the gate assembly (2-6) being closed, as well as to monitor for leaks when checking the sealing performance.

8. The performance testing system for a gate assembly of a blowout preventer according to claim 1, characterized in that, The drill pipe specimen module (7) is used for shear testing. The male thread plug (7-3) of the drill pipe is connected to the male thread end of the drill pipe (7-1), the female thread plug (7-4) of the drill pipe is connected to the female thread end of the drill pipe (7-1), one end of the hydraulic line V (7-2) is connected to the female thread plug (7-4), and the other end of the hydraulic line V (7-2) is connected to the hydraulic line IV (5-3-1).

9. A performance testing system for a gate assembly of a blowout preventer according to claim 1, characterized in that, The control and interactive display module (8) is used to control the start and stop of various machines and display various data information of the gate assembly (2-6) during the closing process. The data display screen (8-1) is used to display the duration of the shearing process and the real-time picture. Pressure gauge I (8-2) is used to display the pressure of hydraulic pump I (5-1). Pressure gauge II (8-3) is used to display the pressure of hydraulic pump II (5-2). Pressure gauge III (8-4) is used to display the pressure of hydraulic pump III (5-3). Hydraulic pump I switch (8-5) is used to control the start and stop of hydraulic pump I (5-1). Hydraulic pump II switch (8-6) is used to control the start and stop of hydraulic pump II (5-2). Hydraulic pump III switch (8-7) is used to control the start and stop of hydraulic pump III (5-3). The main power switch (8-8) is used to turn the power on and off of the entire system. The emergency brake button (8-9) is used to stop the entire system in an emergency.

10. An operating method for the performance testing system of the gate blowout preventer assembly based on claim 9, characterized in that, Includes the following steps: When testing the shearing or sealing performance of a specific gate assembly (2-6), if gate assembly (2-6) is selected as the shear gate assembly: Step 1: Select the drill rod of the corresponding size (7-1), measure the corresponding dimensional parameters of the shear gate assembly, and ensure that the two movable clamping tables (2-3) at the bottom of the two shear gates can also close when the two shear gates are closed. Then, make two pads (2-4) and two tooling fixtures (2-5) of the corresponding size according to the size of the shear gate. Step 2: The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to hoist the shear gate, pad (2-4) and tooling fixture (2-5) onto the test bench module (1). The pad (2-4), shear gate and tooling fixture (2-5) are then installed onto the movable clamping platform (2-3) and connected and fixed with bolt III (2-5-1). Then the automatic suspension module (4) is remotely controlled to return to its original position. Step 3: First, install the corresponding size drill rod male plug (7-3) on the male end of the drill rod (7-1). Then, the worker ties the drill rod (7-1) specimen to the steel cable hook (4-4). The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to lift the drill rod (7-1) specimen from the ground to the top of the simple gate blowout preventer module (2). Then, the worker operates the remote control (4-5) to lower the drill rod (7-1) specimen into the simple gate blowout preventer module (2). At the same time, another worker rotates the two cranks (3-4) to clamp the end of the drill rod (7-1) specimen at the diameter change and connect the drill rod female plug (7-4) to the female end of the drill rod (7-1). Then, remove the steel cable hook (4-4) and return the automatic suspension module (4) to its original position. Step 4: Check each module for potential safety hazards and eliminate them in time. Then turn on the main power switch (8-8) and turn on the hydraulic pump III switch (8-7) to pressurize the drill rod (7-1) (simulating the internal pressure of the drill rod during a blowout). After pressurizing to the set value, maintain the pressure. Then turn on the hydraulic pump II switch (8-6) to push the piston rod (2-2-3) so that the two shear gates start to move towards each other to shear the drill rod (7-1) until the drill rod (7-1) is completely sheared. Then turn off the hydraulic pump II (5-2) and hydraulic pump III (5-3) in time. Loosen the flexible clamp (3-3) and the automatic suspension module (4) will move the upper part of the sheared drill rod (7-1) to an open area for subsequent fracture analysis. Step 5: Turn on the hydraulic pump I switch (8-5) to pressurize the inside of the casing (2-1-1) to the set pressure value and maintain the pressure for a certain period of time to check the sealing performance of the shear gate after shearing the drill rod (7-1). The miniature camera (6-4) monitors and records the images and transmits them to the data display screen (8-1) to display the observation process. Then turn off the hydraulic pump I switch (8-5) and turn on the hydraulic pump II switch (8-6) to separate the shear gate. Loosen the double-headed bolt (2-1-2) and open the cover plate (2-1-3) to take out the lower half of the drill rod (7-1) specimen after it has been sheared. At this point, one test procedure is completed.

11. An operating method for the performance testing system of the gate valve assembly of the blowout preventer according to claim 9, characterized in that, Includes the following steps: When it is necessary to test the shear performance or sealing performance of a certain gate assembly (2-6), select the gate assembly (2-6) as a fully sealed gate assembly; Step 1: Measure the corresponding dimensional parameters of the fully enclosed gate assembly. When the two fully enclosed gates are closed, the two movable clamping platforms (2-3) at their bottoms should also be closed. Then, according to the dimensions of the fully enclosed gates, make two pads (2-4) and two tooling fixtures (2-5) of the corresponding dimensions. Step 2: The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to hoist the fully enclosed gate, pad (2-4) and tooling fixture (2-5) to the test bench module (1). The pad (2-4), fully enclosed gate and tooling fixture (2-5) are installed on the movable clamping platform (2-3) in sequence and connected and fixed with bolt III (2-5-1). Then the remote control automatic suspension module (4) returns to its original position. Step 3: Check each module for any safety hazards and eliminate them in time. Then turn on the main power switch (8-8), turn on the hydraulic pump II switch (8-6), push the piston rod (2-2-3) to make the two fully sealed gates move towards each other and close until they are completely closed, and then turn off the hydraulic pump II (5-2) in time. Step 4: Turn on the hydraulic pump I switch (8-5) to pressurize the inside of the sleeve (2-1-1) to the set pressure value and maintain the pressure for a certain period of time to check the sealing performance after the full-sealing gate is closed. The miniature camera (6-4) monitors and records the images and transmits them to the data display screen (8-1) to display the observation process. Then turn off the hydraulic pump I switch (8-5) and turn on the hydraulic pump II switch (8-6) to open the full-sealing gate. At this point, one test procedure is completed.

12. An operating method for the performance testing system of the gate blowout preventer assembly based on claim 9, characterized in that, Includes the following steps: When testing the shear performance or sealing performance of a gate assembly (2-6), if the gate assembly (2-6) is selected as a semi-sealed gate assembly: Step 1: Select the drill rod of the corresponding size (7-1), measure the corresponding size parameters of the semi-sealed gate assembly, and ensure that the two movable clamping tables (2-3) at the bottom of the two semi-sealed gates can also close when the two semi-sealed gates are closed. Then, make two pads (2-4) and two tooling fixtures (2-5) of the corresponding size according to the size of the shearing gate. Step 2: The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to hoist the semi-enclosed gate, the pad (2-4) and the tooling fixture (2-5) onto the test bench module (1). The pad (2-4), the semi-enclosed gate and the tooling fixture (2-5) are then installed onto the movable clamping platform (2-3) and connected and fixed with bolt III (2-5-1). Then the automatic suspension module (4) is remotely controlled to return to its original position. Step 3: First, install the corresponding size drill rod male plug (7-3) on the male end of the drill rod (7-1). Then, the worker ties the drill rod (7-1) specimen to the steel cable hook (4-4). The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to lift the drill rod (7-1) specimen from the ground to the top of the simple gate blowout preventer module (2). Then, the worker operates the remote control (4-5) to lower the drill rod (7-1) specimen into the simple gate blowout preventer module (2). At the same time, another worker rotates the two cranks (3-4) to clamp the end of the drill rod (7-1) specimen at the diameter change and connect the drill rod female plug (7-4) to the female end of the drill rod (7-1). Then, remove the steel cable hook (4-4) and return the automatic suspension module (4) to its original position. Step 4: Check each module for potential safety hazards and eliminate them promptly. Then, turn on the main power switch (8-8) and the hydraulic pump III switch (8-7) to pressurize the drill pipe (7-1) (simulating the internal pressure of the drill pipe during a blowout). After pressurizing to the set value, maintain the pressure. Then, turn on the hydraulic pump II switch (8-6) to push the piston rod (2-2-3), which will cause the two semi-sealing gates to move towards each other and encircle the drill pipe (7-1) until they completely encircle the drill pipe (7-1). Then, turn off the hydraulic pump II (5-2) and hydraulic pump III (5-3) promptly. Step 5: Turn on the hydraulic pump I switch (8-5) to pressurize the inside of the casing (2-1-1) to the set pressure value and maintain the pressure for a certain period of time to check the sealing performance after the semi-sealed gate plate surrounds the drill rod (7-1). The miniature camera (6-4) monitors and records the images and transmits them to the data display screen (8-1) to display the observation process. Then turn off the hydraulic pump I switch (8-5) and turn on the hydraulic pump II switch (8-6) to separate the semi-sealed gate plate. The worker operates the remote control (4-5) to remotely control the automatic suspension module (4) to move the drill rod (7-1) specimen. At this point, one test process is completed. Throughout the test, the data acquisition module (6) will acquire images, pressure and time signals and transmit them to the control interaction display module (8) and display them on the corresponding instruments. Different models of gate assemblies (2-6) from different companies and different sizes of drill rods (7-1) can be replaced as needed to verify the shearing performance of different gate assemblies (2-6) on different drill rods and the sealing performance after the gate assembly is closed.

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