Pulser testing device, system and pulser testing method

Abstract

The present invention provides a testing device for a pulser, comprising: a simulated main valve; the simulated main valve comprises a connection part for connecting with the pulser to be tested, and a pressure feedback part installed on the connection part so as to be movable up and down; a simulated load is arranged on the pressure feedback part, and an acceleration sensor and a collection and communication component connected to the acceleration sensor are fixed on the simulated load, and the collection and communication component is used to receive the signal collected by the acceleration sensor and then output it to a terminal device; an air source supply component is connected to the simulated main valve, and is used to deliver high-pressure gas to the simulated main valve to simulate the pressure of the drilling fluid downhole. The simulation of the downhole environment is realized by the simulated load and the air source supply component, and the accuracy of the test results is improved; and the high-pressure gas will not cause pollution to the pulser, and the damage to the pulser to be tested caused by the test process is avoided; in addition, by setting the simulated main valve, the problem that the influence of the main valve on the test results is difficult to eliminate is also solved.

Description

Technical Field

[0001] The present invention relates to the field of pulser testing, and in particular to a pulser testing device, a pulser testing system and a pulser testing method. Background Art

[0002] In the field of oil exploration and drilling, the use of drilling equipment is very common. The core of drilling equipment is the drill bit, so it is necessary to monitor the drilling status of the drill bit at any time. However, as the drilling goes deeper, the drill bit will go deeper into the formation, and it is difficult for the staff on the ground to directly observe the status of the drill bit; currently, the way of communication between the ground and the underground is generally to use a pulse generator to control the drilling fluid delivery pipeline. The principle is to set a pulse generator in the mud flow channel. The pulse generator opens / blocks the drilling fluid flow channel according to a certain rule, so that the mud flow channel produces regular pulses. The ground staff detects and decodes these pulses on the ground to obtain detection data.

[0003] The existing pulse generator 1 generally includes a valve port 11, a leakage hole 12, a plug 13, a push rod 14, an electromagnetic drive device 15 and a return spring 16. The valve port 11 is connected to the leakage hole 12. The electromagnetic drive device 15 drives the push rod 14 to move toward the valve port 11 according to the received control signal, so that the plug 13 blocks / opens the valve port 11. One end of the return spring 16 is connected to the push rod 14, and the other end is connected to the plug 13. The push rod 14 deforms the return spring 16 and then drives the plug 13 to block the valve port 11. When the plug 13 blocks the valve port 11, the force of the return spring 16 on the push rod 14 and the plug 13 is greater than the pressure of the fluid on the valve port 11 plug 13, so that the plug 13 is reset. Considering the performance of the material of the pulse generator 1, the accuracy of assembly, and the errors in the dimensions of the components, the pulse generator 1 may not provide sufficient thrust to allow the plug 13 to block the valve port 11 under high drilling fluid pressure, or there may be a demagnetization delay of the electromagnetic drive device 15, which may cause the main valve driven by the pulse generator 1 to fail to respond and there is a delay. It is often necessary to calibrate the dimensions of the components and test the thrust before the pulse generator 1 leaves the factory. In addition, there are also statistical methods for sampling field tests. However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the inventors of the present application found that the above technology has at least the following technical problems:

[0004] Since the existing testing method fails to simulate the pressure environment of the downhole drilling fluid, the test results can only represent the working performance of the pulse generator 1 under normal pressure, and the test results have low accuracy. In addition, the pulse generator 1 alone cannot be tested in the field. Even if the pulse generator 1 is combined with the main valve for field testing, it is difficult to eliminate the influence of the main valve on the test results. When the test results cannot be passed, it is difficult to determine whether the problem occurs in the main valve or the pulse generator 1. Summary of the invention

[0005] In view of the problems of low accuracy of the test results and difficulty in eliminating the influence of the main valve on the test results, the present invention is proposed to provide a pulser testing device, system and pulser testing method that overcome the above problems or at least partially solve the above problems.

[0006] According to one aspect of the present invention, a testing device for a pulser is provided, comprising: a simulated main valve; the simulated main valve comprises a connecting portion for connecting to a pulser to be tested, and a pressure feedback portion mounted on the connecting portion so as to be movable up and down; a simulated load is arranged on the pressure feedback portion, and an acceleration sensor and a data acquisition and communication component connected to the acceleration sensor are fixed on the simulated load, the data acquisition and communication component is used for receiving a signal collected by the acceleration sensor and then outputting it to a terminal device; a gas source supply component is connected to the simulated main valve, and is used for delivering high-pressure gas to the simulated main valve to simulate the pressure of downhole drilling fluid.

[0007] Preferably, the connecting part includes a main valve base; a positioning cavity is provided through the upper and lower end surfaces of the main valve base for the pulser to be tested to be inserted from the lower end, so that the valve port of the pulser to be tested is connected with the positioning cavity; a main valve stem is inserted into the positioning cavity from the upper end, and a main gas channel is provided in the main valve stem, the input end of the main gas channel is connected to the gas source supply assembly, and the output end of the main gas channel is connected to the positioning cavity.

[0008] Preferably, a gas containing chamber is provided in the pressure feedback portion, a first sealing guide sleeve is fixed outside the main valve stem, and the pressure feedback portion is arranged on the first sealing guide sleeve through the gas containing chamber sleeve; a dividing block for dividing the gas containing chamber into an upper gas containing chamber and a lower gas containing chamber is provided on the first sealing guide sleeve; and a plurality of gas diversion channels connected to the main gas channel and the upper gas containing chamber are also provided in the main valve stem.

[0009] Preferably, it also includes a pulse drive component; the pulse drive component includes a connector seat, and the connector seat is used to connect to the pulser to be tested; a conductive positioning groove is provided through the upper and lower end surfaces of the connector seat, and a conductive connector for connecting to the pulser to be tested is inserted in the conductive positioning groove.

[0010] Preferably, the outer ring of the simulated main valve is provided with a plurality of fixed parallel guide pillars; the simulated load is provided with guide pillar through holes for the parallel guide pillars to pass through, and the parallel guide pillars are inserted into the guide pillar through holes and movably connected with the simulated load.

[0011] Preferably, the pulse drive component also includes a pulse drive circuit connected to the conductive connector and used to provide operating power to the pulser to be tested through the conductive connector; and a pulse control circuit connected to the pulse drive circuit and used to control the periodic start-up of the pulse drive circuit.

[0012] Preferably, the acquisition communication component includes an analog-to-digital conversion circuit connected to the acceleration sensor, for converting the acceleration analog signal collected by the acceleration sensor into an acceleration digital signal; and a terminal communication circuit connected to the analog-to-digital conversion circuit, for sending the acceleration digital signal to the terminal.

[0013] According to another aspect of the present invention, a pulser test system is also provided, comprising: a terminal, a mounting bracket, and a pulser test device as described above; the mounting bracket comprises a main valve mounting portion and a pulser mounting portion connected in sequence from top to bottom; the main valve mounting portion is provided with a connecting through hole, the simulated main valve is mounted on the main valve mounting portion corresponding to the connecting through hole, and the pulse drive component is mounted on the pulser mounting portion corresponding to the connecting through hole; the input and output ends of the terminal are respectively connected to the acquisition and communication component and the pulse drive component, so as to control the start-up of the pulse drive component and output the test result after receiving the acceleration digital signal output by the acquisition and communication component.

[0014] According to another aspect of the present invention, there is also provided a pulse generator testing method, comprising:

[0015] The gas source supply component delivers high-pressure gas to the gas main channel of the simulated main valve to simulate the pressure of the downhole drilling fluid;

[0016] The pulse drive component drives the pulser to be tested to start periodically, driving the simulated load to rise and fall so as to drive the acceleration sensor to reciprocate up and down;

[0017] The acquisition and communication component sends the acceleration information acquired by the acceleration sensor to the terminal, and the terminal obtains the test result according to the acceleration information.

[0018] Preferably, when the simulated load is driven to rise and fall to drive the acceleration sensor to reciprocate up and down, the method further includes:

[0019] The pulser to be tested is periodically started to drive its own valve port to be periodically blocked / opened;

[0020] The valve port of the pulser to be tested is blocked, and the high-pressure gas in the main gas channel enters the upper gas chamber along the gas branch channel, driving the pressure feedback part to rise and push out, and driving the acceleration sensor to rise through the simulated load;

[0021] The valve port of the pulser to be tested is opened, and the high-pressure gas in the upper gas chamber is discharged from the pulser to be tested through the valve port along the main gas channel, driving the pressure feedback part to descend and reset, and driving the acceleration sensor to descend through the simulated load.

[0022] The beneficial effects of the present invention are as follows: the present invention simulates the workpiece loaded on the main valve component in the downhole environment through a simulated load, and transmits high-pressure gas to the simulated main valve through the gas source supply component to simulate the pressure of the downhole drilling fluid, thereby realizing the simulation of the downhole environment, so that the operating state of the pulser to be tested can be regarded as the actual operation, and then the acceleration value of the pressure feedback part of the simulated main valve is collected by the acceleration sensor, and the test result obtained is more accurate; and compared with the real downhole environment and the drilling fluid whose composition is mud, the high-pressure gas will not cause contamination of the pulser, thereby avoiding damage to the pulser to be tested; in addition, by simulating the setting of the main valve, the problem of difficulty in eliminating the influence of the main valve on the test result is solved.

[0023] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 is a cross-sectional view of a pulse generator in the prior art;

[0026] Figure 2 is a schematic structural diagram of a pulser testing device according to an embodiment of the present invention;

[0027] Figure 3 is a cross-sectional view of a simulated main valve in an embodiment of the present invention;

[0028] Figure 4 yes Figure 3 A partial enlarged view of the middle A part;

[0029] Figure 5 is a schematic diagram of the structure of a pulse drive component in an embodiment of the present invention;

[0030] Figure 6 1 is a schematic diagram of the structure of the mounting bracket in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 2 to 5 The embodiment of the present invention provides a testing device 2 for a pulser, comprising: a simulated main valve 21; the simulated main valve 21 comprises a connecting portion 211 for connecting to the pulser to be tested, and a pressure feedback portion 212 mounted on the connecting portion 211 movably mounted up and down; a simulated load 22 is arranged on the pressure feedback portion, and an acceleration sensor (not shown) and a data acquisition and communication component 23 connected to the acceleration sensor are fixed on the simulated load 22, and the data acquisition and communication component 23 receives the signal collected by the acceleration sensor and outputs it to a terminal device; a gas source supply component (not shown) is connected to the simulated main valve 21, and is used to deliver high-pressure gas to the simulated main valve 21 to simulate the pressure of the downhole drilling fluid.

[0033] Specifically, the gas source supply assembly includes a high-pressure gas pump and a pressure regulating valve connected to the high-pressure gas pump and the main channel of the simulated main valve 21. The pressure regulating valve may be an electronic pressure regulating valve to achieve accurate gas pressure supply. The pulser to be tested is a pulse generator.

[0034] Furthermore, the drilling fluid can be divided into clean water, mud, clay-free flushing fluid, and emulsion according to its composition. Mud is widely used in drilling; the simulated main valve 21 is used to simulate the main valve component driven by a pulser in the downhole working environment. The main valve component is a structural component used to connect with the pulser and to push out / retract as the pulser plug blocks / opens the valve port 11; generally, a drill bit / sensor is connected to the main valve component to achieve movement or communication of the drill bit; since the purpose is to achieve detection of the pulser, the simulated main valve 21 only needs to ensure that the air pressure does not leak and that its pressure feedback part 212 can move the same stroke as the standard main valve under the same pressure. Therefore, the simulated main valve 21 can be either a standard main valve or a simplified main valve-like structure, which is conducive to cost reduction; it should be noted that a high-precision main valve that meets the detection requirements can also directly replace the simulated main valve 21 of the test device.

[0035] Furthermore, the purpose of setting the simulated load 22 is to simulate the workpiece loaded on the main valve component in the downhole environment, such as a drill bit, etc.; in this embodiment, a plurality of simulated loads 22 with a certain mass span are also provided; specifically, they are in the shape of discs or dumbbell-like sheets, so that the total mass of the simulated load 22 can be adjusted by stacking to simulate a more accurate downhole environment.

[0036] In short, the test device simulates the workpiece loaded on the main valve component in the downhole environment through the simulated load 22, and delivers high-pressure gas to the simulated main valve 21 through the gas source supply component to simulate the pressure of the downhole drilling fluid, thereby realizing the simulation of the downhole environment, so that the operating state of the pulser to be tested can be regarded as the actual operation, and then the acceleration of the pressure feedback part 212 of the simulated main valve 21 is collected by the acceleration sensor at this time, and the test result obtained is more accurate; and compared with the real downhole environment and the drilling fluid whose composition is mud, the high-pressure gas will not cause contamination of the pulser, thereby avoiding damage to the pulser to be tested; at the same time, by simulating the setting of the main valve 21, the problem of difficulty in eliminating the influence of the main valve on the test results is solved.

[0037] The connecting portion 211 includes a main valve base 211a; a positioning cavity 211b is provided through the upper and lower end surfaces of the main valve base 211a for the pulser to be tested to be inserted from the lower end, so that the valve port of the pulser to be tested is connected with the positioning cavity 211b; a main valve stem 211c is inserted into the positioning cavity 211b from the upper end, and a main gas channel 211d is provided in the main valve stem 211c, the input end of the main gas channel 211d is connected to the gas source supply component, and the output end of the main gas channel 211d is connected to the positioning cavity 211b.

[0038] Specifically, the input end of the main gas channel 211d is arranged at the head end of the main valve stem 211c, and the head end of the main valve stem 211c is provided with an air pipe joint 24, and the air source supply assembly is connected to the air pipe joint 24 through a pipeline, so that the air source supply assembly is connected to the main gas channel 211d. When the valve port of the pulser to be tested is inserted into the main valve base 211a, the valve port of the pulser to be tested is connected to the main gas channel 211d; when the plug of the pulser to be tested blocks the valve port and opens the valve port, the leakage hole is connected to the main gas channel 211d, and when the plug of the pulser to be tested blocks the valve port, the leakage hole is not connected to the main gas channel 211d.

[0039] A gas chamber 212a is provided in the pressure feedback part 212, and a first sealing guide sleeve 213 is fixed to the outside of the main valve stem 211c. The pressure feedback part 212 is sleeved on the first sealing guide sleeve 213 through the gas chamber 212a; a partition block 213a is provided on the first sealing guide sleeve 213 to divide the gas chamber 212a into an upper gas chamber and a lower gas chamber; a plurality of gas diversion channels 211e connected to the main gas channel 211d and the upper gas chamber are also provided in the main valve stem 211c.

[0040] Specifically, the partition block 213a divides the gas chamber 212a into an upper gas chamber and a lower gas chamber. When the pulser receives a positive pulse signal, the plug blocks the valve port, the leakage hole is not connected to the main gas channel 211d, and the high-pressure gas supplied by the gas source supply component to the main gas channel 211d enters the upper gas chamber through a plurality of gas diversion channels 211e to drive the volume of the upper gas chamber to increase, thereby pushing the pressure feedback part 212 to rise and push out; when the pulser receives a negative pulse signal or stops the input of the positive pulse signal, the plug blocks and opens the valve port, the leakage hole is connected to the main gas channel 211d, the high-pressure gas can be decompressed from the leakage hole, and the high-pressure gas in the upper gas chamber is discharged, thereby driving the pressure feedback part 212 to descend and reset.

[0041] Furthermore, a second sealing guide sleeve is provided outside the main valve stem 211c, and the head end of the pressure feedback part 212 is movably mounted on the second sealing guide sleeve. The sliding of the pressure feedback part 212 is more stable, thereby avoiding the impact of the sliding offset of the pressure feedback part 212 on the test results, thereby further improving the test accuracy of the device.

[0042] The pulse generator test device 2 further comprises a pulse drive assembly 25; the pulse drive assembly 25 comprises a connector seat 251, and the connector seat 251 is used to connect with the pulse generator to be tested;

[0043] A conducting positioning groove 251 a is formed through the upper and lower end surfaces of the connector seat 251 , and a conducting connector 252 for communicating with the pulse generator to be tested is inserted into the conducting positioning groove 251 a .

[0044] Specifically, the connector seat 251 is used to locate the input end of the pulser to be tested, so as to avoid the pulser to be tested and the pulse driving assembly 25 falling off during the process of pushing out / resetting the pressure feedback part 212, thereby affecting the test result.

[0045] The outer ring of the simulated main valve 21 is provided with a plurality of fixed parallel guide pillars 26 ; the simulated load 22 is provided with guide pillar through holes for the parallel guide pillars 26 to pass through, and the parallel guide pillars 26 are inserted into the guide pillar through holes and movably connected to the simulated load 22 .

[0046] Specifically, the parallel guide pillars 26 are arranged so that the simulated load 22 can keep its own posture stable while following the movement of the pressure feedback unit 212 without tilting, thereby avoiding interference with the sampling of the acceleration sensor.

[0047] The pulse driving component 25 also includes a pulse driving circuit connected to the conductive connector 252 for providing operating power to the pulser to be tested through the conductive connector 252; and a pulse control circuit connected to the pulse driving circuit for controlling the periodic start-up of the pulse driving circuit.

[0048] Specifically, the pulse driving circuit is a power supply circuit, which provides a stable voltage output to the pulser to be tested; in this embodiment, the power supply circuit includes a power management IC connected to the power supply and the conductive connector 252 respectively, and the pulse control circuit controls the periodic start of the pulse driving circuit generally by adjusting the time ratio of the on and off signals output by the power management IC, that is, adjusting the output duty cycle of the pulse driving circuit.

[0049] The acquisition communication component 23 includes an analog-to-digital conversion circuit connected to the acceleration sensor for converting the acceleration analog signal collected by the acceleration sensor into an acceleration digital signal; a terminal communication circuit connected to the analog-to-digital conversion circuit for sending the acceleration digital signal to the terminal.

[0050] Specifically, the terminal can be an information processing terminal such as a PC or a mobile phone; the analog-to-digital conversion circuit includes an analog-to-digital conversion chip, and the terminal communication circuit can be a Bluetooth transmission circuit / LoRa transmission circuit / wired communication transmission or other widely used signal transmission modules.

[0051] See also Figure 6 , a pulser test system is also provided, comprising: a terminal, a mounting bracket 3, and the above-mentioned pulser test device 2; the mounting bracket 3 comprises a main valve mounting part 31 and a pulser mounting part 32 connected in sequence from top to bottom; the main valve mounting part 31 is provided with a connecting through hole 311, the simulated main valve 21 is mounted on the main valve mounting part 31 corresponding to the connecting through hole 311, and the pulse drive component 25 is mounted on the pulser mounting part 32 corresponding to the connecting through hole 311; the input and output ends of the terminal are respectively connected to the acquisition communication component 23 and the pulse drive component 25, for controlling the start of the pulse drive component 25, and outputting the test result after receiving the acceleration digital signal output by the acquisition communication component 23.

[0052] Specifically, in addition to simulating the downhole environment, the test system also provides a convenient installation experience for the pulser to be tested through the setting of the mounting bracket 3 and the connecting through hole 311. When installing the pulser to be tested, it is only necessary to insert the valve port of the pulser to be tested into the positioning cavity 211b corresponding to the connecting through hole 311, and then install the output end of the pulser to be tested corresponding to the conductive connector 252 on the pulse drive assembly 25.

[0053] A pulser testing method is also provided, comprising:

[0054] The gas source supply component delivers high-pressure gas to the gas main channel 211d of the simulated main valve 21 to simulate the pressure of the downhole drilling fluid;

[0055] The pulse driving component 25 drives the pulser to be tested to start periodically, driving the simulated load 22 to rise and fall, thereby driving the acceleration sensor to reciprocate up and down;

[0056] The acquisition and communication component 23 sends the acceleration information acquired by the acceleration sensor to the terminal, and the terminal obtains the test result according to the acceleration information.

[0057] Furthermore, the acquisition communication component 23 sends the acceleration information collected by the acceleration sensor to the terminal, and at the same time, sends the time when the acceleration information is acquired to the terminal; in this embodiment, the time when the acceleration information is acquired is not sent, and when the terminal receives the acceleration information, the current time is bound to the data packet of the acceleration information.

[0058] When driving the simulated load 22 to rise and fall so as to drive the acceleration sensor to reciprocate up and down, the method further includes:

[0059] The pulser to be tested is periodically started to drive its own valve port to be periodically blocked / opened;

[0060] The valve port of the pulser to be tested is blocked, and the high-pressure gas in the main gas channel 211d enters the upper gas chamber along the gas branch channel 211e, driving the pressure feedback part 212 to rise and push out, and driving the acceleration sensor to rise through the simulated load 22;

[0061] The valve port of the pulser to be tested is opened, and the high-pressure gas in the upper gas chamber is discharged from the pulser to be tested through the valve port along the main gas channel 211d, driving the pressure feedback part 212 to descend and reset, and driving the acceleration sensor to descend through the simulated load 22.

[0062] When the terminal obtains the test result according to the acceleration information, it also includes:

[0063] The terminal obtains the force, position and time data of the simulated load 22 driven by the pulser to be tested according to the acceleration information, and compares the force, position and time data of the simulated load 22 driven by the standard pulser to obtain the test result.

[0064] Specifically, the process of the terminal obtaining the corresponding force, position and time data according to the acceleration information is through the formula of Newton's second law and the acceleration definition formula. Under the premise that the mass of the simulated load 22 is certain, the acceleration of the simulated load 22 at multiple consecutive moments from the beginning of displacement to the end of displacement is obtained through the acceleration sensor, and the magnitude of the force and the displacement distance of the simulated load 22 can be calculated; by establishing a virtual coordinate system, taking the initial acquisition of acceleration information as the origin, the position of the simulated load 22 can be obtained through the calculated displacement distance. The time data refers to the time required for the simulated load 22 to reset from displacement. The force, position and time data of the simulated load 22 driven by the standard pulser can be manually input or a test record of the standard pulser.

[0065] In this embodiment, when obtaining the test results, on the one hand, the acceleration at continuous moments can be collected, and the continuous moments represent all moments included in the process from displacement to displacement resetting of the simulated load 22, to obtain acceleration information at multiple different moments, and then obtain the corresponding force, position and time data, and obtain the force and position data of the simulated load 22 driven by the pulser to be tested at different moments. At least one moment is selected to determine whether the force and position data driven by the pulser to be tested at this moment are the same as the force and position data of the simulated load 22 driven by the standard pulser; if so, output a passing test result to determine that the pulser to be tested has passed; if not, output a failing test result to determine that the pulser to be tested has failed.

[0066] It should be noted that, considering the test error, the force and position data of the simulated load 22 driven by the standard pulser should be set with an allowable fluctuation range; further, when judging whether the force and position data of the simulated load 22 driven by the pulser to be tested at this moment are the same as the force and position data of the simulated load 22 driven by the standard pulser, it should be judged whether the force and position data driven by the pulser to be tested at this moment are within the force and position data range of the simulated load 22 driven by the standard pulser; if so, output a passing test result to determine that the pulser to be tested is passed; if not, output a failing test result to determine that the pulser to be tested is failed. The force and position data of the simulated load 22 driven by the standard pulser can be pre-input before the test.

[0067] On the other hand, after obtaining the acceleration information at multiple different moments by waveform calculation, the force-time relationship of the simulated load 22 driven by the pulser to be tested and the position-time relationship of the simulated load 22 driven by the pulser to be tested can be generated; it can be determined whether the force-time relationship of the simulated load 22 driven by the pulser to be tested and the position-time relationship of the simulated load 22 driven by the pulser to be tested are the same as the force-time relationship of the simulated load 22 driven by the standard pulser and the position-time relationship of the simulated load 22 driven by the standard pulser; if so, a passing test result is output to determine that the pulser to be tested has passed; if not, a failing test result is output to determine that the pulser to be tested has failed.

[0068] It should be noted that, considering the test error, the force-time relationship of the simulated load 22 driven by the pulser to be tested, and the position-time relationship of the simulated load 22 driven by the pulser to be tested should be set with an allowable fluctuation range; further, to determine whether the force-time relationship of the simulated load 22 driven by the pulser to be tested, and the position-time relationship of the simulated load 22 driven by the pulser to be tested are the same as the force-time relationship of the simulated load 22 driven by the standard pulser, and the position-time relationship of the simulated load 22 driven by the standard pulser, it should be determined whether the force-time relationship of the simulated load 22 driven by the pulser to be tested, and the position-time relationship of the simulated load 22 driven by the standard pulser are within the range of the force-time relationship of the simulated load 22 driven by the standard pulser, and the position-time relationship of the simulated load 22 driven by the standard pulser; if so, output a qualified test result to determine that the pulser to be tested is qualified; if not, output a failed test result to determine that the pulser to be tested is unqualified. The force and position data of the simulated load 22 driven by the standard pulser can be pre-input before the test.

[0069] When in use, firstly insert the valve port of the pulser to be tested into the positioning cavity 211b corresponding to the connecting through hole 311, and then install the output end of the pulser to be tested corresponding to the conducting connector 252 on the pulse driving component 25;

[0070] The gas source supply component delivers high-pressure gas to the simulated main valve 21 and the pulser to be tested inserted into the positioning cavity 211b to simulate the pressure of the downhole drilling fluid;

[0071] The pulse control circuit receives the control signal output by the terminal, and controls the pulse driving circuit for providing operating power to the pulse generator to be tested through the conductive connector 252 to start periodically, so as to provide a periodic positive pulse signal to the pulse generator to be tested;

[0072] When the pulser to be tested receives a positive pulse signal, the plug seals the valve port, the leakage hole is disconnected from the main gas channel 211d, and the high-pressure gas supplied from the gas source supply assembly to the main gas channel 211d enters the upper gas chamber through a plurality of gas branch channels 211e, so as to increase the volume of the upper gas chamber, thereby pushing the pressure feedback unit 212 to rise and be pushed out; when the pulser to be tested does not receive a positive pulse signal, the plug seals and opens the valve port, the leakage hole is connected to the main gas channel 211d, the high-pressure gas can be decompressed from the leakage hole, and the high-pressure gas in the upper gas chamber is discharged, thereby driving the pressure feedback unit 212 to descend and reset;

[0073] In the process of the pressure feedback part 212 rising and pushing out to falling and resetting, the acceleration sensor continuously collects the acceleration analog signal of the simulated load 22, and sends it to the terminal through the terminal communication circuit after conversion by the analog-to-digital conversion circuit; obtains the force and position data of the simulated load 22 driven by the pulser to be tested at different times, selects at least one moment, and determines whether the force and position data driven by the pulser to be tested at this moment are the same as the force and position data of the simulated load 22 driven by the standard pulser; if so, outputs a passing test result to determine that the pulser to be tested is passed; if not, outputs a failing test result to determine that the pulser to be tested is failed.

[0074] The structural design of the present invention is reasonable and ingenious. The simulated load 22 simulates the workpiece loaded on the main valve component in the downhole environment, and the high-pressure gas is delivered to the simulated main valve 21 through the gas source supply component to simulate the pressure of the downhole drilling fluid, thereby realizing the simulation of the downhole environment, so that the operating state of the pulser to be tested can be regarded as the actual operation, and then the acceleration value of the pressure feedback part 212 of the simulated main valve 21 is collected by the acceleration sensor, so that the test result obtained is more accurate; and compared with the real downhole environment and the drilling fluid whose composition is mud, the high-pressure gas will not cause pollution to the pulser, thereby avoiding damage to the pulser to be tested; in addition, by simulating the setting of the main valve 21, the problem of difficulty in eliminating the influence of the main valve on the test result is solved.

[0075] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0076] It should also be understood that in the embodiments of the present invention, the term "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0077] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0078] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0079] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or it can be an electrical, mechanical or other form of connection.

[0080] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

[0081] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0082] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program code.

[0083] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A pulse generator test device, characterized in that: include: Simulate the main valve; The simulated main valve comprises a connecting portion for connecting with the pulser to be tested, and a pressure feedback portion mounted on the connecting portion movably up and down; The pressure feedback part is provided with a simulated load, and an acceleration sensor and a collection and communication component connected to the acceleration sensor are fixed on the simulated load, and the collection and communication component is used to receive the signal collected by the acceleration sensor and then output it to the terminal device; A gas source supply assembly is connected to the simulated main valve and is used to deliver high-pressure gas to the simulated main valve to simulate the pressure of the downhole drilling fluid; The connecting portion includes a main valve seat; A positioning cavity is provided through the upper and lower end surfaces of the main valve base for inserting the pulser to be tested from the lower end, so that the valve port of the pulser to be tested is communicated with the positioning cavity; A main valve stem is inserted into the positioning cavity from the upper end, a main gas channel is provided in the main valve stem, an input end of the main gas channel is connected to the gas source supply assembly, and an output end of the main gas channel is connected to the positioning cavity; A gas chamber is provided inside the pressure feedback part, a first sealing guide sleeve is fixed outside the main valve stem, and the pressure feedback part is sleeved on the first sealing guide sleeve through the gas chamber; The first sealing guide sleeve is provided with a partition block for dividing the gas chamber into an upper gas chamber and a lower gas chamber; A plurality of gas flow distribution channels connected to the main gas channel and the upper gas chamber are also arranged in the main valve stem.

2. The pulse generator testing device according to claim 1, characterized in that: It also includes a pulse drive component; The pulse drive assembly includes a connector seat, and the connector seat is used to connect with the pulser to be tested; A conduction positioning groove is provided through the upper and lower end surfaces of the connector seat, and a conduction connector for communicating with the pulser to be tested is inserted in the conduction positioning groove.

3. The pulse generator testing device according to claim 1, characterized in that: The outer side of the simulated main valve is ring-shaped with a plurality of fixed parallel guide pillars; The simulated load is provided with guide post through holes for the parallel guide posts to pass through, and the parallel guide posts are inserted into the guide post through holes and are movably connected to the simulated load.

4. The pulse generator test device according to claim 2, characterized in that: The pulse drive assembly further comprises a pulse drive circuit connected to the conductive connector and used for providing operating power to the pulser to be tested through the conductive connector; The pulse control circuit is connected to the pulse driving circuit and is used to control the periodic start of the pulse driving circuit.

5. The pulse generator testing device according to claim 1, characterized in that: The acquisition and communication component includes an analog-to-digital conversion circuit connected to the acceleration sensor and used to convert the acceleration analog signal collected by the acceleration sensor into an acceleration digital signal; The terminal communication circuit is connected to the analog-to-digital conversion circuit and is used to send the acceleration digital signal to the terminal.

6. A pulse generator test system, characterized in that: include: A terminal, a mounting bracket, and a testing device for a pulser as claimed in any one of claims 2 to 5; The mounting bracket comprises a main valve mounting portion and a pulser mounting portion which are sequentially connected from top to bottom; The main valve mounting portion is provided with a connecting through hole, the simulated main valve is mounted on the main valve mounting portion corresponding to the connecting through hole, and the pulse drive assembly is mounted on the pulser mounting portion corresponding to the connecting through hole; The input and output ends of the terminal are connected to the acquisition and communication component and the pulse drive component respectively, and are used to control the start-up of the pulse drive component and output the test result after receiving the acceleration digital signal output by the acquisition and communication component.

7. A pulse generator testing method, characterized in that: The testing method is implemented based on the testing device of the pulser according to any one of claims 2 to 5, and comprises: The gas source supply component delivers high-pressure gas to the gas main channel of the simulated main valve to simulate the pressure of the downhole drilling fluid; The pulse drive component drives the pulser to be tested to start periodically, driving the simulated load to rise and fall so as to drive the acceleration sensor to reciprocate up and down; The acquisition and communication component sends the acceleration information acquired by the acceleration sensor to the terminal, and the terminal obtains the test result according to the acceleration information.

8. The pulse generator testing method according to claim 7, characterized in that: When driving the simulated load up and down to drive the acceleration sensor to reciprocate up and down, it also includes: The pulser to be tested is periodically started to drive its own valve port to be periodically blocked / opened; The valve port of the pulser to be tested is blocked, and the high-pressure gas in the main gas channel enters the upper gas chamber along the gas branch channel, driving the pressure feedback part to rise and push out, and driving the acceleration sensor to rise through the simulated load; The valve port of the pulser to be tested is opened, and the high-pressure gas in the upper gas chamber is discharged from the pulser to be tested through the valve port along the main gas channel, driving the pressure feedback part to descend and reset, and driving the acceleration sensor to descend through the simulated load.

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