CN218917557U - Circuit fault detection system for measurement while drilling system - Google Patents
Circuit fault detection system for measurement while drilling system Download PDFInfo
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- CN218917557U CN218917557U CN202222820317.2U CN202222820317U CN218917557U CN 218917557 U CN218917557 U CN 218917557U CN 202222820317 U CN202222820317 U CN 202222820317U CN 218917557 U CN218917557 U CN 218917557U
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Abstract
The utility model discloses a circuit fault detection system for a measurement while drilling system, which comprises: the detection environment device is used for providing various test environments for the circuit to be detected; the signal acquisition device is used for acquiring operation characteristic signals of each sub-circuit in the circuit to be detected under the corresponding test environment; and the testing device is used for determining a fault sub-circuit in the corresponding testing environment according to the operation characteristic signals. The utility model realizes the performance test of the measurement-while-drilling circuit in the product manufacturing process and the fault detection of the measurement-while-drilling circuit after the product is put into use aiming at different test environments.
Description
Technical Field
The utility model belongs to the technical field of measurement while drilling, and particularly relates to a circuit fault detection system for a measurement while drilling system.
Background
The measurement while drilling system consists of a mechanical system and a circuit system, wherein when the whole function of the circuit system is tested, the whole set of circuit system and the drill collar are required to be combined to manufacture the complete measurement while drilling circuit system, so that the test of the circuit system can be realized. However, the circuitry is required to be mounted on the drill collar by a complex process, and time and materials are wasted if the circuitry fails to be tested.
Disclosure of Invention
To solve the above problems, an embodiment of the present utility model provides a circuit fault detection system for a measurement while drilling system, including: the detection environment device is used for providing various test environments for the circuit to be detected; the signal acquisition device is used for acquiring the operation characteristic signals of each sub-circuit in the circuit to be detected under the corresponding test environment; and the testing device is used for determining a fault sub-circuit in the corresponding testing environment according to the operation characteristic signals.
Preferably, the sub-circuit of the circuit to be detected comprises: the device comprises a transmitting circuit, a receiving circuit, a main control circuit, an azimuth gamma circuit, a gamma sensor and a power supply unit circuit.
Preferably, the circuit fault detection system further comprises: and the stabilized power supply is connected with the power supply unit circuit and is used for providing stabilized power supply for each sub-circuit through the power supply unit circuit.
Preferably, the detection environment device includes: the high-temperature testing unit is used for providing a high-temperature aging testing environment for the circuit to be detected; and the rotation test unit is used for providing a rotation test environment for the circuit to be detected.
Preferably, the circuit fault detection system further comprises: the multi-core slip ring is perpendicular to the extending direction of the information transmission cable and the power supply cable, the information transmission cable is used for connecting each sub-circuit with the signal acquisition device, and the power supply cable is used for connecting the power supply unit circuit with the stabilized voltage supply.
Preferably, the operation characteristic signal includes a signal representing an operation state of each sub-circuit, wherein the operation state characteristic signal of the power supply unit circuit is a voltage actually provided by the power supply unit circuit to other sub-circuits, and the operation state characteristic signals of the remaining sub-circuits are output signals of the corresponding sub-circuits.
Preferably, the signal acquisition device further comprises: the input end of the first array switch is connected with the actual power line end output by the power supply unit circuit to the residual sub-circuit; and the input end of the second array switch is connected with each output signal of the residual sub-circuit.
Preferably, the test environment includes a conventional test environment, a high temperature test environment, a rotational test environment, and a high temperature rotational composite test environment.
Preferably, the matching relationship between the high temperature test unit and the rotation test unit is realized as follows: in the conventional test environment, the high-temperature test unit and the rotary test unit are kept in a standby state; in the high-temperature test environment, only the high-temperature test unit is started; in the rotational test environment, only the rotational test unit is activated; in the high-temperature rotary composite testing environment, the high-temperature testing unit and the rotary testing unit are started simultaneously.
One or more embodiments of the above-described solution may have the following advantages or benefits compared to the prior art:
the utility model provides a circuit fault detection system for a measurement while drilling system, which is provided with different test environments and can perform fault test on a circuit to be detected according to each test environment. In addition, the circuit fault detection system divides the whole circuit system of the measurement while drilling system into a plurality of sub-circuits, and tests are respectively carried out on each sub-circuit independently, so that the fault position in the whole circuit system can be directly locked. According to the utility model, the circuit to be detected is not required to be connected with the drill collar during detection, so that the fault detection can be carried out on the circuit to be detected after the product is put into use, the rapid and accurate positioning of the fault is realized, and the performance test of the measurement-while-drilling circuit in different test environments in the product manufacturing process is realized.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model, without limitation to the utility model. In the drawings:
FIG. 1 is a schematic diagram of the overall architecture of a circuit fault detection system for a measurement while drilling system according to an embodiment of the present application.
FIG. 2 is a schematic circuit connection diagram of a circuit fault detection system for a measurement while drilling system according to an embodiment of the present application.
FIG. 3 is a flow chart of an application of a circuit fault detection system for a measurement while drilling system according to an embodiment of the present application.
Detailed Description
The following will describe embodiments of the present utility model in detail with reference to the drawings and examples, thereby solving the technical problems by applying technical means to the present utility model, and realizing the technical effects can be fully understood and implemented accordingly. It should be noted that, as long as no conflict is formed, each embodiment of the present utility model and each feature of each embodiment may be combined with each other, and the formed technical solutions are all within the protection scope of the present utility model.
Additionally, the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that herein.
The measurement while drilling system consists of a mechanical system and a circuit system, wherein when the whole function of the circuit system is tested, the whole set of circuit system and the drill collar are required to be combined to manufacture the complete measurement while drilling circuit system, so that the test of the circuit system can be realized. However, the circuitry is required to be mounted on the drill collar by a complex process, and time and materials are wasted if the circuitry fails to be tested.
Therefore, in order to solve the above-mentioned problems, the present utility model proposes a circuit fault detection system for a measurement while drilling system, which has different test environments, and performs fault test on a circuit to be detected for each test environment. In addition, the circuit fault detection system divides the whole circuit system of the measurement while drilling system into a plurality of sub-circuits, and tests are respectively carried out on each sub-circuit independently, so that the fault position in the whole circuit system can be directly locked. According to the utility model, the circuit to be detected is not required to be connected with the drill collar during detection, so that the fault detection can be carried out on the circuit to be detected after the product is put into use, the rapid and accurate positioning of the fault is realized, and the performance test of the measurement-while-drilling circuit in different test environments in the product manufacturing process is realized. In addition, the utility model has the advantages of simple operation and low test cost.
FIG. 1 is a schematic diagram of the overall architecture of a circuit fault detection system for a measurement while drilling system according to an embodiment of the present application. The circuit fault detection system for a measurement while drilling system according to the present utility model is described in detail below with reference to fig. 1.
As shown in fig. 1, the circuit fault detection system for the measurement while drilling system at least includes: the environment detection device 10, the signal acquisition device 20, and the test device (not shown). The test environment device 10 provides a variety of test environments for the circuit to be tested. The signal acquisition device 20 acquires the operation characteristic signal of each sub-circuit in the circuit to be detected under the corresponding test environment. The test device determines the fault sub-circuit corresponding to the test environment according to the operation characteristic signals collected by the signal collection device 20.
The following describes in detail the structure and function of a circuit fault detection system for a measurement while drilling system in accordance with embodiments of the present application.
The test environment device 10 provides a plurality of different test environments for the circuit to be tested. The test environment set in the embodiment is mainly used for performing high-temperature aging tests on the circuit to be detected in the manufacturing process of the product so as to perform aging tests on the circuit to be detected at different temperatures; and carrying out a rotation experiment on the circuit to be detected so as to carry out azimuth gamma test on the circuit to be detected at different rotating speeds.
In an embodiment of the present application, a sub-circuit of a circuit to be detected includes: the device comprises a transmitting circuit, a receiving circuit, a main control circuit, an azimuth gamma circuit, a gamma sensor and a power supply unit circuit. FIG. 2 is a schematic circuit connection diagram of a circuit fault detection system for a measurement while drilling system according to an embodiment of the present application. Referring to fig. 2, the measurement while drilling circuit system is formed by interconnecting a plurality of sub-circuits, wherein a transmitting circuit, a receiving circuit, a main control circuit, an azimuth gamma circuit, a gamma sensor and a power supply unit circuit are all the sub-circuits forming a circuit to be detected. In this application embodiment, transmitting circuit, main control circuit and receiving circuit connect gradually in order, and position gamma circuit is connected with main control circuit and gamma sensor respectively, and the power unit circuit is connected with transmitting circuit, receiving circuit, main control circuit, position gamma circuit and gamma sensor respectively.
In the circuit to be detected of the present embodiment, the transmitting circuit is used for outputting a signal; the receiving circuit is used for receiving an output signal of the transmitting signal; the main control circuit is used for controlling the transmitting circuit to output signals, controlling the receiving circuit to receive signals and processing the output signals of the position gamma circuit; the gamma sensor is used for measuring the radioactive isotope and outputting a gamma signal; the azimuth gamma circuit is used for receiving the gamma signals and performing data processing; the power supply unit circuit is used for supplying power to the transmitting circuit, the receiving circuit, the main control circuit, the azimuth gamma circuit and the gamma sensor.
The circuit fault detection system comprises a stabilized power supply connected with a power supply unit circuit, wherein the stabilized power supply is used for providing stabilized power supply for all sub-circuits through the power supply unit circuit. Referring to fig. 2, the regulated power supply is directly connected to the power supply unit circuit and provides a regulated operating voltage of 36V for the power supply unit circuit. The power supply unit circuit converts the 36V working voltage provided by the stabilized power supply into working voltages suitable for all the sub-circuits (the transmitting circuit, the receiving circuit, the main control circuit, the azimuth gamma circuit and the gamma sensor), and supplies power for the corresponding sub-circuits according to the suitable working voltages.
Further, the signal acquisition device 20 is configured to acquire an operation characteristic signal of each sub-circuit in the circuit to be detected under a corresponding test environment. The various test environments of the present embodiments include a conventional test environment, a high temperature test environment, a rotational test environment, and a high temperature rotational composite test environment. The signal acquisition device 20 acquires the operation characteristic signal of each sub-circuit in the circuit to be detected for each test environment to obtain the working state of the corresponding sub-circuit under the corresponding test environment.
The operating characteristic signal, in turn, includes a signal indicative of the operating state of each sub-circuit. The working state characteristic signals of the power supply unit circuit are voltages actually provided for other sub-circuits by the power supply unit circuit, and the working state characteristic signals of the rest sub-circuits are output signals of the corresponding sub-circuits.
Specifically, the operation characteristic signal of each sub-circuit in the corresponding test environment collected by the signal collection device 20 includes a signal representing the operation state of each sub-circuit. According to the embodiment, the corresponding sub-circuit is determined to be in a normal operation state or in a fault state under the corresponding test environment according to the operation characteristic signals. The signal acquisition device 20 extracts signals representing the operating states of the sub-circuits during operation of the circuit to be detected. In the embodiment of the application, the working state characteristic signals of the transmitting circuit, the receiving circuit, the main control circuit, the azimuth gamma circuit and the gamma sensor are output signals of corresponding sub-circuits in the operation process, and the working state characteristic signals of the power unit circuit are different voltages actually provided for other sub-circuits by the power unit circuit.
Further, the signal acquisition device 20 also includes a first array switch and a second array switch. The input end of the first array switch is connected with the actual power line end which is output by the power unit circuit to the residual sub-circuit, and the input end of the second array switch is connected with each output signal of the residual sub-circuit.
In this embodiment, the input terminal of the first array switch is connected to the actual power line terminal outputted from the power unit circuit to the remaining sub-circuits, and the output terminal is connected to a voltage monitoring device (e.g., an oscilloscope). The first array switch switches a transmission path between an actual power line terminal outputted from the power supply unit circuit to the remaining sub-circuits and an input terminal of the voltage monitoring device. In this way, the waveforms of the voltages provided by the power supply unit circuit to the transmitting circuit, the receiving circuit, the main control circuit, the azimuth gamma circuit and the gamma sensor can be independently monitored, and the power supply state of the power supply unit circuit to the corresponding sub-circuit can be independently obtained.
The input of the second array of switches is then connected to the respective output signals of the remaining sub-circuits, and the output is connected to an operating characteristic signal monitoring device (e.g. a computer). The signal input end of the computer adopts a USB-to-485 interface. The second array switch can independently determine the working states of the transmitting circuit, the receiving circuit, the main control circuit, the azimuth gamma circuit and the gamma sensor by switching signal transmission paths between output signals of the transmitting circuit, the receiving circuit, the main control circuit, the azimuth gamma circuit and the gamma sensor and input ends of the operation characteristic signal monitoring device, and can display output signals of corresponding sub-circuits, so that visual monitoring is facilitated.
The inspection environment device 10 is provided with a high-temperature test unit for providing a high-temperature aging test environment for a circuit to be inspected; and a rotation test unit for providing a rotation test environment for the circuit to be tested. Referring to fig. 1, the circuit fault detection system of the present utility model includes a device holder, and a circuit holder is provided above the device holder. The high temperature test unit adopts a temperature control box which is arranged between the device bracket and the circuit fixing frame. The rotary test unit adopts a motor, wherein one side of the circuit fixing frame is connected with the motor, and the other side is connected with the signal acquisition device 20. Before the test starts, the circuit to be tested is fixed on the circuit fixing frame. Then, a stabilized power supply switch is turned on, and the stabilized power supply supplies 36V system working voltage to the power supply unit circuit. Then, the power supply unit circuit supplies corresponding operating voltages to the remaining sub-circuits. According to the embodiment, a high-temperature aging test environment is provided for the circuit to be detected by adjusting the temperature control box, so that aging tests at different temperatures are carried out on the circuit to be detected; the rotation test environment is provided for the circuit to be detected by adjusting the motor to rotate, so that the azimuth gamma test is performed on the circuit to be detected at different rotation speeds.
Further, the testing device determines a fault sub-circuit in the corresponding testing environment according to the operation characteristic signals. In the embodiment of the present application, the testing device determines the failure sub-circuit according to the operation characteristic signal of each sub-circuit collected by the signal collecting device 20, so as to lock the failure position of the circuit to be detected.
The circuit to be detected in the embodiment of the utility model can be checked under different test environments. The test environment comprises a conventional test environment, a high-temperature test environment, a rotary test environment and a high-temperature rotary composite test environment.
The matching relationship between the high-temperature test unit and the rotary test unit is realized in the following manner:
the conventional test environment of this embodiment is used for simulating a normal temperature working environment of a circuit to be tested, and in the normal temperature test environment, both the high temperature test unit and the rotation test unit are kept in a standby state at this time. That is, in the conventional test environment, the high temperature test unit and the rotary test unit are kept in a standby state.
The high-temperature test environment is used for simulating the high-temperature working environment of the circuit to be detected, and the high-temperature test unit is started at the moment. Specifically, in a high temperature test environment, only the high temperature test unit is activated.
The rotary test environment is used for simulating the rotary working environment of the circuit to be detected, and only the rotary test unit is started at the moment. Specifically, in a rotational test environment, only the rotational test unit is activated.
The high-temperature rotating composite testing environment is used for simulating the environment state that the circuit to be detected simultaneously has high temperature and rotates when in work, and the high-temperature testing unit and the rotating testing unit are started simultaneously. Specifically, in a high temperature rotational composite test environment, the high temperature test unit and the rotational test unit are started simultaneously.
FIG. 3 is a flow chart of an application of a circuit fault detection system for a measurement while drilling system according to an embodiment of the present application. Referring to fig. 3, the detection process of the circuit to be detected in the present embodiment is as follows:
in a conventional test environment, the standby state of the motor and the temperature control box is maintained. In the detection process, if the circuit fault is not detected (namely, the circuit is normal), the circuit is continuously detected in a high-temperature test environment; if a failure of one or more sub-circuits is detected, the current detection process is aborted. And after the fault is removed, restarting the circuit detection process in the conventional test environment until the circuit is continuously detected in the high-temperature test environment after the fault is no longer detected in the conventional test environment.
In a high temperature test environment, only the temperature control box is activated. In the detection process, if the circuit fault is not detected (namely, the circuit is normal), the circuit is continuously detected in the rotation test environment; if a failure of one or more sub-circuits is detected, the current detection process is aborted. And after the fault is removed, restarting the circuit detection process in the high-temperature test environment until the fault is no longer detected in the high-temperature test environment, and continuing to detect the circuit in the rotation test environment.
In a rotational test environment, only the motor is started. In the detection process, if no circuit fault is detected (namely, the circuit is normal), the circuit is continuously detected in a high-temperature rotation composite test environment; if a failure of one or more sub-circuits is detected, the current detection process is aborted. And after the fault is removed, restarting the circuit detection process in the rotation test environment until the fault is no longer detected in the rotation test environment, and continuing to detect the circuit in the high-temperature rotation composite test environment.
In a high-temperature rotary composite test environment, a motor and a temperature control box are started simultaneously. In the detection process, if no circuit fault is detected (namely, the circuit is normal), the detection is ended; if a failure of one or more sub-circuits is detected, the current detection process is aborted. And after the fault is removed, restarting the circuit detection process in the high-temperature rotation composite test environment until the fault is no longer detected in the high-temperature rotation composite test environment, and ending the detection.
Further, the circuit fault detection system according to the present utility model further has a multi-core slip ring which is perpendicular to the extending direction of the information transmission cable for connecting each sub-circuit with the signal pickup device 20 and the power supply cable for connecting the power supply unit circuit with the stabilized power supply. Specifically, the information transmission cable includes a transmission circuit power supply signal transmission cable and a transmission circuit data signal transmission cable that connect the transmission circuit and the signal acquisition device 20; a main control circuit power supply signal transmission cable and a main control circuit data signal transmission cable which are connected with the main control circuit and the signal acquisition device 20; a receiving circuit power supply signal transmission cable connecting the receiving circuit and the signal acquisition device 20, and a receiving circuit data signal transmission cable; a gamma circuit power supply signal transmission cable connecting the gamma circuit and the signal acquisition device 20; and a sensor power signal transmission cable and a sensor data signal transmission cable for connecting the gamma sensor and the signal acquisition device 20. The power supply unit circuit is connected with the regulated power supply through a power supply cable (a system power line in fig. 1). The multicore slip ring sets up between every sub-circuit and signal acquisition device 20, and the direction of extension of simultaneously perpendicular to information transmission cable and power supply cable has effectively prevented that the cable from being twisted off in rotatory test environment or high temperature rotatory compound test environment.
In a specific embodiment of the present application, if the circuit to be detected is installed in the measurement while drilling system and has already been put into use, the signal acquisition device 20 and the testing device may be directly utilized to acquire an operation characteristic signal of the current circuit to be detected, so as to further implement positioning of a fault of the current circuit to be detected.
The embodiment of the utility model provides a circuit fault detection system for a measurement while drilling system, which is provided with different test environments, performs fault test on a circuit to be detected aiming at each test environment, and continuously detects other test environments when no fault sub-circuit is detected in the same test environment. In addition, the circuit fault detection system divides the whole circuit system of the measurement while drilling system into a plurality of sub-circuits, and tests are respectively carried out on each sub-circuit independently, so that the fault position in the whole circuit system can be directly locked. According to the utility model, the circuit to be detected is not required to be connected with the drill collar during detection, the fault detection can be carried out on the circuit to be detected after the product is put into use, the rapid and accurate positioning and troubleshooting of the fault are realized, the performance test of the measurement-while-drilling circuit in different test environments in the product manufacturing process is realized, and the manufacturing success rate of the circuit system of the measurement-while-drilling system is improved.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
It is to be understood that the disclosed embodiments are not limited to the specific structures, process steps, or materials disclosed herein, but are intended to extend to equivalents of these features as would be understood by one of ordinary skill in the relevant arts. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the utility model. Thus, the appearances of the phrase "one embodiment" or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.
While the embodiments of the present utility model have been described above, the embodiments are presented for the purpose of facilitating understanding of the utility model and are not intended to limit the utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is still subject to the scope of the appended claims.
Claims (9)
1. A circuit fault detection system for a measurement while drilling system, comprising:
the detection environment device is used for providing various test environments for the circuit to be detected;
the signal acquisition device is used for acquiring the operation characteristic signals of each sub-circuit in the circuit to be detected under the corresponding test environment;
and the testing device is used for determining a fault sub-circuit in the corresponding testing environment according to the operation characteristic signals.
2. The circuit fault detection system of claim 1, wherein the sub-circuit of the circuit to be detected comprises: the device comprises a transmitting circuit, a receiving circuit, a main control circuit, an azimuth gamma circuit, a gamma sensor and a power supply unit circuit.
3. The circuit fault detection system of claim 2, wherein the circuit fault detection system further comprises:
and the stabilized power supply is connected with the power supply unit circuit and is used for providing stabilized power supply for each sub-circuit through the power supply unit circuit.
4. The circuit fault detection system according to any one of claims 1 to 3, wherein the detection environment device includes:
the high-temperature testing unit is used for providing a high-temperature aging testing environment for the circuit to be detected;
and the rotation test unit is used for providing a rotation test environment for the circuit to be detected.
5. The circuit fault detection system of claim 3, further comprising: the multi-core slip ring is perpendicular to the extending direction of the information transmission cable and the power supply cable, the information transmission cable is used for connecting each sub-circuit with the signal acquisition device, and the power supply cable is used for connecting the power supply unit circuit with the stabilized voltage supply.
6. The circuit fault detection system of claim 2, 3 or 5, wherein the operating characteristic signal comprises a signal indicative of an operating state of each sub-circuit, wherein the operating state characteristic signal of the power supply unit circuit is a voltage actually provided by the power supply unit circuit to the other sub-circuits, and the operating state characteristic signal of the remaining sub-circuits is an output signal of the corresponding sub-circuit.
7. The circuit fault detection system of claim 6, wherein the signal acquisition device further comprises:
the input end of the first array switch is connected with the actual power line end output by the power supply unit circuit to the residual sub-circuit;
and the input end of the second array switch is connected with each output signal of the residual sub-circuit.
8. The circuit fault detection system of claim 4, wherein the test environment comprises a conventional test environment, a high temperature test environment, a rotational test environment, and a high temperature rotational composite test environment.
9. The circuit fault detection system of claim 8, wherein the mating relationship of the high temperature test unit and the rotary test unit is implemented as follows:
in the conventional test environment, the high-temperature test unit and the rotary test unit are kept in a standby state;
in the high-temperature test environment, only the high-temperature test unit is started;
in the rotational test environment, only the rotational test unit is activated;
in the high-temperature rotary composite testing environment, the high-temperature testing unit and the rotary testing unit are started simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222820317.2U CN218917557U (en) | 2022-10-25 | 2022-10-25 | Circuit fault detection system for measurement while drilling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222820317.2U CN218917557U (en) | 2022-10-25 | 2022-10-25 | Circuit fault detection system for measurement while drilling system |
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| CN218917557U true CN218917557U (en) | 2023-04-25 |
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| CN202222820317.2U Active CN218917557U (en) | 2022-10-25 | 2022-10-25 | Circuit fault detection system for measurement while drilling system |
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