Device for detecting output power of self-generating pulser

Abstract

The utility model relates to a device for detecting the output power of a self-generating pulser, which is suitable for the self-generating pulser for logging while drilling and comprises a measuring circuit, a signal processing circuit, a computing circuit, a display, a memory and a communication module, the measuring circuit is electrically connected with the signal processing circuit and is used for acquiring voltage and current signals output by the self-generating pulser; the signal processing circuit is electrically connected with the calculation circuit and is used for receiving the voltage and current signals acquired by the measurement circuit and processing the signals through a digital filter; and the calculation circuit is electrically connected with the display, the memory and the communication module, and is used for calculating the output power of the self-generating pulser in real time according to the voltage and current data processed by the signal processing circuit and generating corresponding waveform data. By arranging the measuring circuit, the signal processing circuit and the computing circuit, the output power of the self-generating pulser can be monitored in real time.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric power detection technical field, especially to a kind of self-powered pulser output power detection device. BACKGROUND

[0002] In the process of logging while drilling, self-powered pulser plays a vital role, self-powered pulser can be driven by mud rotor rotation to realize self-power generation, to provide power for the latter level of probe instrument. Because it needs to work in high temperature and high pressure and other extreme environments for a long time, the stability of self-powered pulser is crucial for real-time signal transmission and normal operation of probe.

[0003] In order to confirm the working state of self-powered pulser, electrical performance detection needs to be carried out on self-powered pulser. The current detection method is to test the voltage generated by self-powered pulser using a voltmeter, but it cannot know whether the power provided by self-powered pulser is enough to drive the circuit of the latter level, and it cannot automatically save the test data. If the power generation of self-powered pulser cannot meet the requirements of the normal operation of probe instrument, the probe instrument will not work, and thus affect the whole operation. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of self-powered pulser output power detection device, to solve the technical problem that the output power of logging while drilling self-powered pulser cannot be obtained in real time.

[0005] In order to solve the above technical problems, the technical scheme provided by the utility model is:

[0006] A kind of self-powered pulser output power detection device, suitable for self-powered pulser of logging while drilling, comprising: measurement circuit, signal processing circuit, calculation circuit, display, memory and communication module;

[0007] The measurement circuit is electrically connected with the signal processing circuit, for collecting the voltage and current signals output by the self-powered pulser;

[0008] The signal processing circuit is electrically connected with the calculation circuit, for receiving the voltage and current signals collected by the measurement circuit, and processing the signals through digital filter;

[0009] The calculation circuit is electrically connected with the display, the memory and the communication module, for calculating the output power of the self-powered pulser in real time according to the voltage and current data processed by the signal processing circuit and generating corresponding waveform data;The display, the memory and the communication module are respectively used for displaying, storing and transmitting detection results.

[0010] In an embodiment, the measurement circuit comprises a voltage isolation acquisition circuit and a current isolation acquisition circuit, both of which are electrically connected to the signal processing circuit.

[0011] In an embodiment, the voltage isolation acquisition circuit adopts an isolation circuit with a photoelectric coupler.

[0012] In an embodiment, the photoelectric coupler is a high-linearity photoelectric coupler of model HCNR201-500E.

[0013] In an embodiment, the current isolation acquisition circuit adopts an isolation circuit with a Hall current sensor.

[0014] In an embodiment, the Hall current sensor is a Hall current sensor of model ACS712.

[0015] In an embodiment, the signal processing circuit comprises a signal processing amplification circuit, an ADC (analog-to-digital converter) sampling circuit, and a single-chip microcomputer, the signal processing amplification circuit being electrically connected to the measurement circuit and the ADC sampling circuit, the ADC sampling circuit being electrically connected to the single-chip microcomputer, and the single-chip microcomputer being configured to perform digital filtering on data provided by the ADC sampling circuit.

[0016] In an embodiment, the calculation circuit comprises a single-chip microcomputer master control circuit, which transmits the detection results to the display, the memory, and the communication module for transmission to a remote control terminal.

[0017] In an embodiment, the memory supports an SD (secure digital) card.

[0018] In an embodiment, the communication module supports wired / wireless data interfaces.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] 1. Real-time power monitoring: by setting the measurement circuit, the signal processing circuit, and the calculation circuit, the detection device can monitor the output power of the self-powered pulse generator in real time, and can determine whether the power provided by the self-powered pulse generator is sufficient to drive the subsequent circuit.

[0021] 2. Real-time result display: the display directly displays the output power and its waveform.

[0022] 3. Isolation circuit design: the design of the voltage isolation acquisition circuit and the current isolation acquisition circuit improves the safety of the system and prevents electrical interference and potential safety risks.

[0023] 4. Signal processing capability: the collected voltage and current signals are processed by digital filters, improving the accuracy and reliability of the signals and ensuring the authenticity of the calculation results.

[0024] 5. Remote communication capability: the communication module supports wired / wireless data interface, so that the detection results can be conveniently transmitted to the remote control end, facilitating remote monitoring and fault diagnosis.

[0025] 6. Data automatic recording: by setting the calculation circuit and the memory, the function of automatically saving the test data is achieved, reducing the tediousness of manual recording, improving the efficiency and accuracy of data management, and also enabling the long-term running state of the self-powered pulser to be tracked and analyzed.

[0026] 7. SD card storage support: the memory supports SD card, which is convenient for long-term data storage and subsequent analysis, and also facilitates data transfer and sharing.

[0027] In summary, the self-powered pulser output power detection device provided by the utility model significantly improves the performance monitoring and detection data management capability of the self-powered pulser in the while-drilling logging, providing strong technical support for the while-drilling logging operation. BRIEF DESCRIPTION OF DRAWINGS

[0028] In the following, the utility model will be described in more detail based on the embodiments and with reference to the accompanying drawings.

[0029] Figure 1 is the structural principle of the self-powered pulser output power detection device provided by the utility model Figure 1 ;

[0030] Figure 2 is the structural principle of the self-powered pulser output power detection device provided by the utility model Figure 2 ;

[0031] Figure 3 is the circuit connection diagram of the voltage isolation acquisition circuit;

[0032] Figure 4 is the circuit connection diagram of the current isolation acquisition circuit;

[0033] Figure 5 is the circuit connection diagram of the ADC sampling circuit.

[0034] REFERENCE NUMERALS:

[0035] 1, measurement circuit; 11, voltage isolation acquisition circuit; 12, current isolation acquisition circuit; 2, signal processing circuit; 21, signal processing amplifier circuit; 22, ADC sampling circuit; 3, calculation circuit; 31, single-chip microcomputer main control circuit; 4, display; 41, display screen; 5, memory; 51, SD card; 6, communication module; 61, wired / wireless data interface. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements, or it can be wireless connection, or it can be wired connection. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0040] In view of the problems in the background art, such as Figure 1 As shown in the drawings, the present application provides a self-powered pulse generator output power detection device, which is suitable for a self-powered pulse generator for logging while drilling, comprising: a measurement circuit 1, a signal processing circuit 2, a calculation circuit 3, a display 4, a memory 5 and a communication module 6.

[0041] The measurement circuit 1 is electrically connected with the signal processing circuit 2, for collecting the voltage and current signals output by the self-generating pulse generator; as Figure 2 shown, the measurement circuit 1 at this time includes a voltage isolation collection circuit 11 and a current isolation collection circuit 12, both of which are electrically connected with the signal processing circuit 2. The voltage isolation collection circuit 11 adopts an isolation circuit with an opto-coupler. The current isolation collection circuit 12 adopts an isolation circuit with a Hall current sensor. The signal processing circuit 2 is electrically connected with the calculation circuit 3, for receiving the voltage and current signals collected by the measurement circuit 1 and processing the signals through a digital filter; by using the digital filter, noise and other interference factors are removed, so as to obtain accurate current and voltage data. The digital filter in the signal processing circuit 2 includes a low-pass filter, for removing high-frequency noise and ensuring the stability of the signals.

[0042] The calculation circuit 3 is electrically connected with the display 4, the memory 5 and the communication module 6, for calculating the output power of the self-generating pulse generator in real time according to the voltage and current data processed by the signal processing circuit 2 and generating corresponding waveform data; the display 4, the memory 5 and the communication module 6 are respectively used for displaying, storing and transmitting the detection results.

[0043] By setting the measurement circuit 1 with the voltage isolation collection circuit 11 and the current isolation collection circuit 12, the output voltage signal and the output current signal of the self-generating pulse generator can be collected by the isolation method, the collection circuit of the measurement circuit 1 is protected, and the safety of the system is improved.

[0044] In one embodiment, as Figure 3 shown, the opto-coupler is a high-linearity opto-coupler of model HCNR201-500E. The opto-coupler is a high-linearity analog opto-coupler, which has high linearity and sensitivity, with a linearity of 0.05%, and can accurately transmit voltage signals in the detection system.

[0045] In one embodiment, as Figure 4 shown, the Hall current sensor is a Hall current sensor of model ACS712. ACS712 has a built-in precise low-bias linear Hall sensor circuit, which can output a voltage proportional to the detected alternating current or direct current, with high output sensitivity (66mV / A~185mV / A), ensuring the accuracy of the measurement.

[0046] In one embodiment, as Figure 2As shown, the signal processing circuit 2 includes a signal processing amplification circuit 21, an ADC (analog-to-digital converter) sampling circuit 22, and a single-chip microcomputer. The signal processing amplification circuit 21 is electrically connected to the measurement circuit 1 and the ADC sampling circuit 22. The ADC sampling circuit 22 is electrically connected to the single-chip microcomputer, which is configured to perform digital filtering on the data provided by the ADC sampling circuit 22. The voltage signal and the current signal collected by the measurement circuit 1 are amplified by the signal processing amplification circuit 21, facilitating subsequent analog-to-digital conversion. The ADC sampling circuit 22 is configured to perform analog-to-digital conversion on the signal. Figure 5 As shown, the ADC sampling circuit 22 uses an ADS8688 sampling chip. The positive and negative voltage output terminals of the voltage isolation collection circuit 11 are respectively connected to the 18th and 19th pins of the ADS8688 sampling chip. The positive and negative current output terminals of the current isolation collection circuit 12 are respectively connected to the 16th and 17th pins of the ADS8688 sampling chip. The calculation circuit 3 includes a single-chip microcomputer main control circuit 31, which is configured to calculate the output power of the self-powered pulse generator in real time based on the voltage and current data processed by the signal processing circuit 2 and generate corresponding waveform data. The single-chip microcomputer main control circuit 31 transmits the detection results to the display 4 for display, to the memory 5 for storage, and to the communication module 6 for transmission to a remote control terminal. The single-chip microcomputer in the single-chip microcomputer main control circuit 31 is the same single-chip microcomputer as in the signal processing circuit 2, thereby saving costs. That is, the single-chip microcomputer is configured to perform digital filtering on the data provided by the ADC sampling circuit 22 and to calculate the output power of the self-powered pulse generator in real time based on the voltage and current data processed by the signal processing circuit 2 and generate corresponding waveform data. At this time, the display 4 is a liquid crystal display screen 41, which can display the output power of the self-powered pulse generator and its waveform image simultaneously, thereby facilitating real-time monitoring of the operating state of the self-powered pulse generator.

[0047] In one embodiment, as shown in Figure 2 The memory 5 supports an SD (Secure Digital) card 51, in which the detection results can be stored. The memory 5 supports the SD card 51, thereby facilitating long-term storage and subsequent analysis of data, as well as data transfer and sharing.

[0048] In one embodiment, as shown in Figure 2 The communication module 6 supports a wired / wireless data interface 61, which is configured to export the data in the memory 4 to an external device. The communication module 6 supports the wired / wireless data interface 61, thereby enabling the detection results to be conveniently transmitted to a remote control terminal, facilitating remote monitoring and fault diagnosis.

[0049] In one embodiment, the computing circuit 3 further comprises an alarm module for monitoring the output power, and when the output power of the self-powered pulser is lower than the preset power required by the subsequent circuit, the alarm module sends an alarm information to the display 4, the memory 5 and the communication module 6.

[0050] By setting the measuring circuit 1, the signal processing circuit 2 and the computing circuit 3, the detection device can monitor the output power of the self-powered pulser in real time, can know whether the power provided by the self-powered pulser can be sufficient to drive the subsequent circuit, and can directly display the output power and its waveform through the display 4, can automatically save the test data through the memory 5, and can remotely transmit the detection information through the communication module 6, so that the detection result can be conveniently transmitted to the remote control end, and remote monitoring and fault diagnosis can be facilitated. The self-powered pulser output power detection device provided by the utility model significantly improves the performance monitoring and detection data management ability of the self-powered pulser in the while-drilling logging, and provides strong technical support for the while-drilling logging operation.

[0051] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and the components therein can be replaced with equivalents without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A self-powered pulser output power detection apparatus, characterized by, The application discloses a self-powered pulser suitable for logging while drilling, which comprises a measurement circuit, a signal processing circuit, a calculation circuit, a display, a memory and a communication module. The measurement circuit is electrically connected with the signal processing circuit and is used for collecting voltage and current signals output by the self-powered pulser. The signal processing circuit is electrically connected with the calculation circuit, is used for receiving the voltage and current signals collected by the measurement circuit and is used for processing signals through a digital filter. The calculation circuit is electrically connected with the display, the memory and the communication module, is used for calculating output power of the self-powered pulser in real time according to voltage and current data processed by the signal processing circuit and is used for generating corresponding waveform data; and the display, the memory and the communication module are respectively used for displaying, storing and transmitting detection results.

2. The self-generating pulser output power detection apparatus of claim 1, wherein, The measurement circuit comprises a voltage isolation collection circuit and a current isolation collection circuit, and the voltage isolation collection circuit and the current isolation collection circuit are both electrically connected with the signal processing circuit.

3. The self-generating pulser output power detection apparatus of claim 2, wherein, The voltage isolation collection circuit adopts an isolation circuit with a photoelectric coupler.

4. The self-generating pulser output power detection apparatus of claim 3, wherein, The photoelectric coupler is a high-linearity photoelectric coupler with a model number of HCNR201-500E.

5. The self-generating pulser output power detection apparatus of claim 2, wherein, The current isolation collection circuit adopts an isolation circuit with a Hall current sensor.

6. The self-generating pulser output power detection apparatus of claim 5, wherein, The Hall current sensor is a Hall current sensor with a model number of ACS712.

7. The self-generating pulser output power detection apparatus of claim 1, wherein, The signal processing circuit comprises a signal processing amplification circuit, an ADC sampling circuit and a single-chip microcomputer, the signal processing amplification circuit is electrically connected with the measurement circuit and the ADC sampling circuit, the ADC sampling circuit is electrically connected with the single-chip microcomputer, and the single-chip microcomputer is used for digitally filtering data provided by the ADC sampling circuit.

8. The self-generating pulser output power detection apparatus of claim 1, wherein, The calculation circuit comprises a single-chip microcomputer master control circuit, the single-chip microcomputer master control circuit transmits the detection results to the display for display, to the memory for storage and to the communication module so as to be transmitted to a remote control end.

9. The self-generating pulser output power detection apparatus of claim 1, wherein, The memory supports an SD card.

10. The self-powered pulser output power detection apparatus of claim 1, wherein, The communication module supports a wired / wireless data interface.

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