CN116774312A - Remote explosion synchronous system testing device for automatic excitation collection - Google Patents
Remote explosion synchronous system testing device for automatic excitation collection Download PDFInfo
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Abstract
The utility model provides a remote explosion synchronous system testing device capable of automatically triggering and collecting, which comprises an encoder test signal interface circuit, a decoder test signal interface circuit, a signal pickup circuit, a data collecting module, a time sequence measuring module and a data analyzing module, wherein the encoder test signal interface circuit collects TB signals of an encoder, the decoder test signal interface circuit collects CTB signals and high-voltage output signals of a decoder, the signal pickup circuit converts the three signals into digital signals from analog signals, the data collecting module completes data collecting work, the time sequence measuring module measures time sequence values and output high-voltage signals according to collected data, and the data analyzing module calculates synchronization accuracy and output voltage. The remote explosion synchronous system testing device for the automatic excitation collection can test and calibrate the synchronous precision of the remote explosion system, the test precision reaches 1 mu s, the excitation time interval is controlled at the millisecond level, and the reliability of the system is improved.
Description
Technical Field
The utility model relates to the technical field of oilfield development, in particular to a remote explosion synchronous system testing device capable of automatically controlling excitation and acquisition.
Background
The remote control explosion synchronization system (hereinafter referred to as remote explosion synchronization system) refers to a system for controlling the excitation and receiving synchronization of seismic waves when the well cannon operation is adopted in the seismic exploration. The remote explosion equipment generally needs to test the synchronization precision in the synchronization system before use or after maintenance, and the index directly influences the accuracy of the seismic data, and the precision range is 0-100 mu s. The prior art has the following test techniques:
(1) The seismic data acquisition system is used for acquisition, and the sampling rate is usually 0.5ms at the minimum, so that the synchronization accuracy is 500 mu s at the maximum, and the test accuracy requirement is obviously not met.
(2) And (5) performing grabbing test by displaying the time sequence relation of the signals through the oscilloscope, and obtaining a result. The method has the advantages of no automatic control of the excitation time, high sampling precision, difficult graph grabbing and incapability of digitizing conclusions.
(3) And (3) adopting professional data acquisition equipment, and obtaining the synchronization precision by calibrating the time of the encoder and decoder signals. The method is not visual in conclusion due to the fact that the excitation time is not self-controlled and data analysis is lacked.
In the chinese application of application number CN201110364182.7, a special geophysical prospecting synchronization system testing device is provided, which is a special geophysical prospecting synchronization system testing device for detecting and calibrating the explosion starting time of a remote control explosion synchronization system and the recording starting time of a seismic instrument in petroleum exploration. The explosion machine high-voltage signal is stabilized at 12V by using two voltage stabilizing tubes after being subjected to resistor voltage division, and then is connected with TB and ANALOG signals through a signal extraction circuit, a microprocessor sends sine waves to be output to the wellhead simulation circuit, when the explosion machine is detonated, the simulation detonator is detonated, a verification TB is generated, a result is displayed, and the test precision is within 5 mu s.
In application number: the Chinese patent application of CN200920082999.3 relates to a detection device of a remote explosion system, which belongs to detection equipment of the remote explosion system in the technical field of geophysical exploration, and comprises an encoder detection box, an encoder signal detection cable, a decoder detection box, a high-voltage detection cable and a decoder wellhead cable, wherein the encoder detection box detects and records a clock-to-clock signal, a verification clock signal and a wellhead signal, and the decoder detection box detects and records a high-voltage explosion signal and generates an analog detector signal; the utility model solves the problem of time precision in the digital remote explosion system by using the traditional detection method, does not use detonators in the detection, is safer and more reliable in detection, can directly detect the high-voltage explosion starting signal, can test under the condition that the encoder and the decoder are separated by a sufficient distance, and ensures that the test result is more rigorous and reliable.
In application number: in the Chinese patent application of CN201310230824.3, a double-set instrument asynchronous excitation control device and a double-set instrument asynchronous excitation control method are related, and belong to the technical field of automatic control of earthquake instrument excitation in two adjacent work areas in the geophysical prospecting industry. The first ARIES seismic instrument is connected with a first controller, a line of the first ARIES seismic instrument, which is connected with a SHOTPRO coder, is an ignition line, the SHOTPRO coder is connected with the first controller, the first controller is connected with a first antenna, the SHOTPRO coder is connected with a ninth antenna, the SHOTPRO explosion machine is connected with a fourth antenna, the second ARIES seismic instrument is connected with a second controller, the second controller is connected with a BOOM-BOX coder, a line of the second ARIES seismic instrument, which is connected with the BOOM-BOX coder, is an ignition line, the second controller is connected with a second antenna, the BOOM-BOX coder is connected with a tenth antenna, and the BOOM-BOX explosion machine is connected with an eighth antenna.
The prior art is greatly different from the utility model, the technical problem which is needed to be solved by the user cannot be solved, and the utility model provides a novel remote explosion synchronous system testing device for automatic control excitation acquisition.
Disclosure of Invention
The utility model aims to provide a remote explosion synchronous system testing device which can automatically control excitation and acquisition, test and calibrate the time difference between the generation time of an encoder clock TB and the excitation time of a pulse source and automatically control excitation and acquisition of output voltage.
The aim of the utility model can be achieved by the following technical measures: the remote explosion synchronous system testing device comprises an encoder test signal interface circuit, a decoder test signal interface circuit, a signal pickup circuit, a data acquisition module, a time sequence measuring module and a data analysis module, wherein the encoder test signal interface circuit is used for acquiring TB signals of an encoder, the decoder test signal interface circuit is used for acquiring CTB signals and high-voltage output signals of the decoder, the signal pickup circuit is connected with the encoder test signal interface circuit and the decoder test signal interface circuit, the three signals are converted into digital signals from analog signals, the data acquisition module is connected with the signal pickup circuit to complete data acquisition, the time sequence measuring module is connected with the data acquisition module and is used for measuring time sequence values and output high-voltage signals according to acquired data, and the data analysis module is connected with the time sequence acquisition module and used for calculating synchronous accuracy and output voltage values.
The aim of the utility model can be achieved by the following technical measures:
the decoder test signal interface circuit adopts a group of high-power resistors to replace the simulated detonator, is respectively connected with the decoder CTB circuit and the high-voltage wiring column of the decoder, collects CTB signals of the decoder during detonation, and simultaneously collects and samples voltage signals output by the high-voltage wiring column end in a voltage division and current division mode.
The data acquisition module adopts a sampling rate of 1MHz, data per second reaches one million, and the test precision is 1 mu s.
The signal pick-up circuit transmits the TB signal to the data acquisition module via channel 1 and the CTB signal and the high voltage output signal to the data acquisition module via channel 2.
The data acquisition module is channel synchronous sampling, namely, each of a channel 1 and a channel 2 is provided with an independent AD conversion unit, when signals are acquired, analog signals output by TB, CTB and high voltage are converted into digital signals, and the digital signals enter the time sequence measurement module through the channel 1 and the channel 2.
The time sequence measuring module collects the TB signal of the encoder in the channel 1, judges the collected data in real time, observes whether the corresponding pulse is detected in the signal, the pulse value is defined as 3 times of average background noise, and starts a counter once the corresponding pulse is detected, and the value of the counter is T0; the process then jumps to channel 2 for detection, and once the corresponding pulse is detected in channel 2, the counter stops counting, the value in the counter is T1, and the measured time sequence value and the output high-voltage signal enter the data analysis module.
The data analysis module uses the measured time sequence value to calculate the time sequence value according to the formula: and calculating a synchronous time difference value T of the remote explosion system by using the T=T1-T0.
The data analysis module also screens out the maximum voltage as U1 according to the collected high-voltage signals, and calculates the voltage U0 of the high-voltage output of the decoder by utilizing a partial pressure formula U0 = U1 (R1 + R2)/R1, wherein R1 and R2 are high-power resistors connected in series with the high-voltage terminal.
The remote explosion synchronous system testing device for the automatic excitation collection further comprises a display screen, wherein the display screen is connected with the data analysis module to display synchronous precision values, images and high-voltage wire column output high-voltage values.
The remote explosion synchronous system testing device for the automatic excitation collection further comprises an automatic excitation interface circuit, wherein the automatic excitation interface circuit is connected with an initiation signal and a +5V power supply and sends an excitation instruction to the decoder.
The remote explosion synchronous system testing device for the automatic excitation collection further comprises a serial port control module, wherein the serial port control module is connected with the automatic excitation interface circuit, the data collection module and the encoder test signal interface circuit, when the automatic excitation interface circuit receives an explosion signal, a +5V power supply is connected, the encoder is started to be in a waiting command state, meanwhile, the serial port control module is connected, the data collection module is started firstly after the serial port control module is connected, then when the triggering delay is finished, an explosion signal is sent to the encoder through the encoder test signal interface circuit, the encoder starts to work, and the explosion signal is sent to a decoder which is already charged through a radio station, so that the automatic excitation and signal collection of the remote explosion system are realized.
The serial port control module controls three times; the click delay is the delay time acquired by the data acquisition module; the trigger delay is the delay time of the serial port control module, namely the excitation delay time of the encoder; the triggering time refers to the continuous conduction time of the serial port control module.
The remote explosion synchronous system testing device for the automatic excitation and collection adopts the data collection module with the sampling rate of 1MHz, the time sequence measurement module and the data analysis module, can improve the testing precision to 1 mu s, and also adopts the automatic excitation system, so that a coder and a data collection module can perform logic control according to the time sequence to perform excitation and collection, and the reliability of collected data is improved. The utility model can realize the synchronous precision of the accurate test and calibration of the remote explosion system of the encoder and the decoder, the precision reaches 1 mu s, the output voltage value is tested, and the test data and the image can be directly displayed; the automatic excitation system can enable the encoder and the data acquisition module to perform logic control according to time sequence, excitation and acquisition are performed, and acquired data are accurate and reliable. Compared with the prior art, the utility model has the following advantages:
(1) The synchronous precision of the remote explosion system can be tested and calibrated, and the test precision reaches 1 mu s.
(2) The automatic control excitation technology can control the excitation of the remote explosion system and the acquisition of the data acquisition module, so that the excitation time interval is controlled at the millisecond level, and the reliability of the system is improved.
(3) The synchronization accuracy value and the output voltage value, and the images of both items are directly displayed.
Drawings
FIG. 1 is a block diagram of a remote burst synchronization system testing device for self-controlled excitation acquisition according to an embodiment of the present utility model.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular forms also are intended to include the plural forms unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, and/or combinations thereof.
The utility model relates to a remote explosion synchronous system testing device for automatic excitation and acquisition, which comprises an encoder testing signal interface circuit, a decoder testing signal interface circuit, a signal pickup circuit, a data acquisition module, a time sequence measuring module, a data analysis module, a serial port control module, an automatic excitation interface circuit and a display screen.
The encoder test signal interface circuit collects TB signals, the decoder test signal interface circuit collects CTB signals and high-voltage output signals, the three analog signals are converted into digital signals through the signal pickup circuit, and the digital signals are sent into the data acquisition module through the channel 1 and the channel 2 to complete data acquisition. The acquired data enter a data analysis module through a time sequence measurement module, the measured time sequence value and the output high-voltage signal, the synchronous precision and the output voltage are calculated, and finally the test data and the image are displayed through a display screen.
The encoder test signal interface circuit of the synchronous precision testing device is used for collecting encoder TB signals, the decoder test signal interface circuit of the synchronous precision testing device adopts a group of high-power resistors to replace a simulated detonator, a detonator explosion signal released during detonation is collected, and meanwhile, voltage and current signals output by a sampling high-voltage wiring column end are collected in a voltage division and current division mode.
The three paths of signals are converted into digital signals through a signal pickup circuit, a multi-way switch (MUX), an amplifier, a sampling and holding circuit and A/D conversion, and the digital signals are sent to a data acquisition module to complete data acquisition.
The acquired data is passed through a time sequence measuring module, firstly, the acquired TB data is judged in a channel 1, the acquired value is defined to be 3 times of average background noise and is an effective signal value, once the corresponding effective signal value is detected, a counter is started, and the value of the counter is T0 (the counter is set to be in a downward counting mode); the jump is then made to channel 2 for further detection, and the counter stops counting as soon as the corresponding value is detected in channel 2, the value in the counter being T1.
And the measured time sequence value and the output high-voltage signal enter a data analysis module to calculate and obtain the synchronous precision and the output voltage, and finally the synchronous precision value, the image and the high-voltage terminal are displayed through a display screen to output the high-voltage value.
Because the data acquisition amount is large, the time is short, the manual operation difficulty is high, and an automatic control acquisition and excitation system is designed. When the serial control module is conducted, the data acquisition module is started first, then when the trigger delay is finished, the detonation signal is sent to the encoder through the encoder test signal interface circuit, the encoder starts to work, and the detonation signal is sent to the charged decoder through the radio station, so that the self-control excitation and signal acquisition of the remote explosion system are realized.
The following are several specific examples of the application of the present utility model.
Example 1:
in a specific embodiment 1 to which the present utility model is applied, as shown in fig. 1, an encoder test signal interface circuit 1 is connected to an encoder CLKTB circuit for collecting the TB signal of the encoder; connected with the signal pickup circuit 3, can send the TB signal of the acquisition encoder to the signal pickup circuit 3; and the excitation time of the self-control encoder is connected with the serial port control module 8.
The decoder test signal interface circuit 2 adopts a group of high-power resistors to replace the simulated detonator, is respectively connected with the decoder CTB circuit and the high-voltage wiring column of the decoder, collects CTB signals of the decoder during detonation, and simultaneously collects and samples voltage signals output by the high-voltage wiring column end in a voltage division and current division mode; and is connected with the signal pickup circuit 3, and can send the collected two paths of signals to the signal pickup circuit 3.
The signal pickup circuit 3 is connected with the encoder test signal interface circuit 1, the decoder test signal interface circuit 2 and the data acquisition module 4. Three paths of analog signals acquired by the encoder test signal interface circuit 1 and the decoder test signal interface circuit 2 enter the data acquisition module 4 through the channel 1 and the channel 2 after passing through a multi-path switch (MUX), an amplifier and a sample hold circuit, so that data acquisition work is completed.
The data acquisition module 4 is connected with the time sequence measurement module 5. The data acquisition module adopts a sampling rate of 1MHz, data per second reaches one million, and the test precision is 1 mu s. The module is used for channel synchronous sampling, namely, each of the channel 1 and the channel 2 is provided with an independent AD conversion unit, and when signals are acquired, the data acquired by each channel can be ensured to be synchronous in time. The TB, CTB and high voltage output analog signals are converted into digital signals, and enter the timing measurement module 5 through the channels 1 and 2.
The timing measurement module 5 is connected to the data analysis module 6. The data enter a time sequence measuring module 5, firstly, an encoder analog signal TB is acquired in a channel 1, the acquired data is judged in real time, whether corresponding pulses are detected in the signals or not is observed, the pulse value is defined as 3 times of average background noise, once the corresponding pulses are detected, a counter is started, and the value of the counter is T0 (the counter is set to be in a downward counting mode); the jump is then made to channel 2 for further detection, and the counter stops counting as soon as the corresponding pulse is detected in channel 2, the value in the counter then being T1. The measured time sequence value and the output high-voltage signal enter a data analysis module 6.
The data analysis module 6 is connected to a display screen 9. In the data analysis module, the measured time sequence value is calculated by the formula: calculating a synchronous time difference value T of the remote explosion system by T=T1-T0; in the data analysis module, the collected high-voltage signals are also screened out to obtain a maximum voltage U1, and the voltage U0 (R1 and R2 are high-power resistors connected in series with a high-voltage terminal and the power of the high-power resistors is 10W, R1=0.5Ω and R2=21Ω) of the high-voltage output of the decoder is calculated by using a partial pressure formula U0=U1 (R1+R2)/R1. The test data and images are finally displayed by means of a display screen 9.
Because of the limitation of the maximum writing quantity of the data analysis module, each channel is provided with 1048576 collecting points at most, and the exceeding data is not recorded, namely the effective collecting time is 1s, so that the difficulty of manually exciting the remote explosion system and then collecting is high, and the self-control collecting and exciting system is designed.
The self-control excitation interface circuit 7 is connected with an initiation signal and a +5V power supply and sends an excitation instruction to the decoder.
The self-control excitation interface circuit 7 is connected with the serial port control module 8, when the self-control excitation interface circuit 7 receives an initiation signal, the +5V power supply is connected, the encoder is started to be in a waiting command state, and the serial port control module 8 is connected. After the communication, the data acquisition module 4 is started firstly, then when the trigger delay is finished, the initiation signal is sent to the encoder through the encoder test signal interface circuit 1, the encoder starts to work, and the initiation signal is sent to the charged decoder through the radio station, so that the self-control excitation and signal acquisition of the remote explosion system are realized, and the excitation interval precision can be controlled at millisecond level.
The serial control module 8 can control three times. The click delay is the delay time acquired by the data acquisition module 4; the trigger delay is the delay time of the serial port control module 8, namely the excitation delay time of the encoder; the trigger time refers to the time that the serial port control module 8 is continuously turned on.
Example 2:
in a specific embodiment 2 to which the present utility model is applied, the serial control module 8 sets three times as follows: the click delay is set to 0ms, the trigger delay is set to 400ms, and the trigger time is set to 300ms, so that the effective automatic control excitation acquisition can be realized.
Example 3:
in a specific embodiment 3 of the present utility model, the serial control module 8 sets three times as follows: the click delay is set to 0ms, the trigger delay is set to 600ms, and the trigger time is set to 300ms, so that the effective automatic control excitation acquisition can be realized.
Therefore, the serial port control module 8 sets three times as follows: the click delay is set to be 0ms, the trigger delay setting interval is 400-600ms, the trigger time setting interval is 300ms, and the automatic control excitation acquisition can be effectively realized.
The utility model adopts the data acquisition module with the sampling rate of 1MHz to acquire three signals of TB, CTB and output voltage, and can test and calibrate the synchronous precision of the remote explosion system to 1 mu s. The acquired data are screened and analyzed through the time sequence measuring module and the data analyzing module, the test result is displayed in the form of 'test data of synchronous precision and output voltage' and 'test pattern of synchronous precision and output voltage', and the operation is simple and visual. Because of large data collection amount, short time and great manual operation difficulty, the utility model designs an automatic control collection and excitation system. The automatic excitation circuit and the serial port control module are adopted to logically control the encoder and the decoder and the data acquisition module according to time sequence, excitation and acquisition are carried out, the excitation time interval is controlled at millisecond level, and the reliability of the system is improved. The self-control excitation technology can be popularized and applied to the research of the node excitation system.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but although the present utility model has been described in detail with reference to the foregoing embodiment, it will be apparent to those skilled in the art that modifications may be made to the technical solution described in the foregoing embodiment, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Other than the technical features described in the specification, all are known to those skilled in the art.
Claims (12)
1. The remote explosion synchronous system testing device is characterized by comprising an encoder test signal interface circuit, a decoder test signal interface circuit, a signal pickup circuit, a data acquisition module, a time sequence measurement module and a data analysis module, wherein the encoder test signal interface circuit acquires TB signals of an encoder, the decoder test signal interface circuit acquires CTB signals and high-voltage output signals of a decoder, the signal pickup circuit is connected with the encoder test signal interface circuit and the decoder test signal interface circuit, the three signals are converted into digital signals from analog signals, the data acquisition module is connected with the signal pickup circuit to complete data acquisition, the time sequence measurement module is connected with the data acquisition module, and according to acquired data, the time sequence values and the output high-voltage signals are measured, and the data analysis module is connected with the time sequence acquisition module to calculate synchronization accuracy and output voltage values.
2. The test device for the remote explosion synchronous system for automatic excitation and collection according to claim 1, wherein the test signal interface circuit of the decoder adopts a group of high-power resistors to replace the simulation detonator, the test signal interface circuit is respectively connected with the CTB circuit of the decoder and the high-voltage wiring column of the decoder, the CTB signal of the decoder during the detonation is collected, and meanwhile, the voltage signal output by the end of the sampling high-voltage wiring column is collected in a voltage division and current division mode.
3. The remote explosion synchronous system testing device for self-control excitation collection according to claim 1, wherein the data collection module adopts a sampling rate of 1MHz, data per second reaches one million, and the testing precision is 1 mu s.
4. The apparatus of claim 1, wherein the signal pick-up circuit transmits TB signals to the data acquisition module via channel 1 and CTB signals and high voltage output signals to the data acquisition module via channel 2.
5. The device for testing a remote explosion synchronization system for self-control excitation and acquisition according to claim 4, wherein the data acquisition module is a channel synchronous sampling, that is, each of the channel 1 and the channel 2 has an independent AD conversion unit, and when signals are acquired, analog signals output by TB, CTB and high voltage are converted into digital signals, and the digital signals enter the time sequence measurement module through the channel 1 and the channel 2.
6. The apparatus for testing a remote burst synchronization system by self-controlled excitation and acquisition according to claim 5, wherein the timing measurement module acquires the encoder TB signal in channel 1, determines the acquired data in real time, observes whether a corresponding pulse is detected in the signal, the pulse value is defined as 3 times of the mean background noise, and starts a counter once the corresponding pulse is detected, and the value of the counter is T0; the process then jumps to channel 2 for detection, and once the corresponding pulse is detected in channel 2, the counter stops counting, the value in the counter is T1, and the measured time sequence value and the output high-voltage signal enter the data analysis module.
7. The apparatus for testing a remote burst synchronization system for self-controlled excitation acquisition according to claim 6, wherein the data analysis module is configured to measure the time sequence value by the formula: and calculating a synchronous time difference value T of the remote explosion system by using the T=T1-T0.
8. The device for testing a remote explosion synchronization system for self-control excitation and collection according to claim 7, wherein the data analysis module is further configured to screen out a maximum voltage U1 according to the collected high voltage signal, calculate a voltage U0 outputted by the decoder at a high voltage by using a partial pressure formula u0=u1 (r1+r2)/R1, wherein R1 and R2 are high power resistors connected in series to the high voltage terminal.
9. The remote explosion synchronization system testing device for self-control excitation collection according to claim 8, further comprising a display screen connected to the data analysis module for displaying the synchronization accuracy value, the image and the high voltage terminal output high voltage value.
10. The remote burst synchronization system testing device for self-controlled excitation collection according to claim 1, further comprising a self-controlled excitation interface circuit connected to the initiation signal and +5v power supply and sending an excitation command to the decoder.
11. The remote explosion synchronous system testing device for self-control excitation collection according to claim 1, further comprising a serial port control module, wherein the serial port control module is connected with the self-control excitation interface circuit, the data collection module and the encoder test signal interface circuit, when the self-control excitation interface circuit receives an initiation signal, the +5V power supply is connected, the encoder is started to be in a waiting command state, meanwhile, the serial port control module is connected, after the connection, the data collection module is started first, then when the trigger delay is finished, an initiation signal is sent to the encoder through the encoder test signal interface circuit, the encoder starts to work, and the initiation signal is sent to an already charged decoder through a radio station, so that the self-control excitation and signal collection of the remote explosion system are realized.
12. The remote explosion synchronization system testing device for self-control excitation collection according to claim 11, wherein the serial port control module controls three times; the click delay is the delay time acquired by the data acquisition module; the trigger delay is the delay time of the serial port control module, namely the excitation delay time of the encoder; the triggering time refers to the continuous conduction time of the serial port control module.
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| CN202210223759.0A CN116774312A (en) | 2022-03-07 | 2022-03-07 | Remote explosion synchronous system testing device for automatic excitation collection |
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| CN202210223759.0A CN116774312A (en) | 2022-03-07 | 2022-03-07 | Remote explosion synchronous system testing device for automatic excitation collection |
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