CN216792458U - Oil gas fracturing monitoring data acquisition device - Google Patents
Oil gas fracturing monitoring data acquisition device Download PDFInfo
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- CN216792458U CN216792458U CN202220046783.7U CN202220046783U CN216792458U CN 216792458 U CN216792458 U CN 216792458U CN 202220046783 U CN202220046783 U CN 202220046783U CN 216792458 U CN216792458 U CN 216792458U
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Abstract
An oil and gas fracturing monitoring data acquisition device, comprising: a box body; the power supply unit is arranged in the box body; the main control board is arranged in the box body; the N junction boxes are arranged outside the box body, each junction box is provided with M input ends, and the M input ends of the junction boxes are connected with the M potential sensors in a one-to-one correspondence manner; each potential sensor is arranged on the ground surface of the area where the fracturing well is located, and each potential sensor is used for acquiring a potential difference signal between the fracturing well and the potential sensor; n all set up in the board is gathered to the passageway in the box, N the input of board is gathered to the passageway is with N the output one-to-one of terminal box is connected, N the output of board is gathered to the passageway all with the main control board electric connection. The oil-gas fracturing monitoring data acquisition device provided by the embodiment of the utility model realizes the acquisition of oil-gas fracturing monitoring data and can obtain more accurate fracture data.
Description
Technical Field
The utility model belongs to the field of oil-gas fracturing monitoring, and particularly relates to an oil-gas fracturing monitoring data acquisition device.
Background
The fracturing fracture monitoring technology is used for monitoring, testing and evaluating the whole fracturing process of coal bed gas, petroleum, shale gas and the like in real time through certain instruments and technical means, and obtaining the direction, the length, the width, the height and the flow conductivity of a fracture, the filtration coefficient of fracturing fluid, the predicted yield, the calculated fracturing benefit and the like through data processing, so that the fracturing effect is evaluated. The common ground micro-seismic monitoring technology is that a micro-seismic event generated by hydraulic fracturing simultaneously releases compression waves and shear waves, wherein the shear waves have the characteristics of large amplitude and high energy, so that the arrival time of the seismic waves can be monitored by a large number of detectors buried under the ground surface by about 30cm, and related parameters can be calculated. But the microseismic survey data points diverge and the fracture parameters calculated therefrom have a larger error than the actual values.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides an oil-gas fracturing monitoring data acquisition device, which solves the problem of low fracturing fracture monitoring precision.
According to the oil gas fracturing monitoring data acquisition device of the embodiment of the utility model, the oil gas fracturing monitoring data acquisition device comprises:
a box body;
the power supply unit is arranged in the box body;
the main control board is arranged in the box body;
the N junction boxes are arranged outside the box body, each junction box is provided with M input ends, and the M input ends of the junction boxes are connected with the M potential sensors in a one-to-one correspondence manner; each potential sensor is arranged on the ground surface of the area where the fracturing well is located, and each potential sensor is used for collecting a potential difference signal between the fracturing well and the potential sensor;
n all set up in the board is gathered to the passageway in the box, N the input of board is gathered to the passageway is with N the output one-to-one of terminal box is connected, N the output of board is gathered to the passageway all with the main control board electric connection.
The oil and gas fracturing monitoring data acquisition device provided by the embodiment of the utility model at least has the following technical effects: the power supply unit provides the electric energy for oil gas fracturing monitoring data acquisition device, make the device can normally work, potential sensor all arranges in the regional surface in fracturing well place, utilize potential sensor to gather the potential difference signal between fracturing well and the potential sensor, potential sensor passes through the input of terminal box with the potential difference signal who gathers, the terminal box is again with the passageway acquisition board of the potential difference signal input box that obtains, the passageway acquisition board is handled the potential difference signal of input, the passageway acquisition board links to each other with the main control panel, the data input of the potential difference signal that the passageway acquisition board will gather is to the main control panel, realize the collection of oil gas fracturing monitoring data. Compared with the ground micro-seismic monitoring technology, the crack detection method based on the potential difference signal has the advantages that more interference factors can be eliminated, and more accurate crack data can be acquired. Meanwhile, the oil-gas fracturing monitoring data acquisition device provided by the embodiment of the utility model is small in arrangement difficulty and low in implementation difficulty, and is suitable for industrial popularization.
According to some embodiments of the utility model, the main control board comprises:
a first controller;
the communication unit is electrically connected with the first controller and is used for carrying out data transmission with the N channel acquisition boards;
and the storage unit is electrically connected with the first controller.
According to some embodiments of the present invention, the main control board further includes a time service unit, and the time service unit is electrically connected to the first controller.
According to some embodiments of the utility model, the junction box has M outputs, and the channel acquisition board comprises:
the second controller is electrically connected with the main control board;
the input ends of the M channel units are correspondingly connected with the M output ends of the junction box one by one;
the ADC units are electrically connected with the output ends of the M/2 channel units;
and the CPLD unit is electrically connected with the second controller and the 2 ADC units respectively.
According to some embodiments of the utility model, the channel unit comprises:
the input end of the differential amplification unit is electrically connected with the output end of the junction box and is used for amplifying the electric signal output by the junction box;
the input end of the filtering unit is electrically connected with the output end of the differential amplification unit;
and the input end of the program control amplification unit is electrically connected with the output end of the filtering unit, and the output end of the program control amplification unit is electrically connected with the input end of the ADC unit and is used for increasing the power of the electric signal output by the filtering unit. According to some embodiments of the utility model, the oil and gas fracturing monitoring data acquisition device further comprises a display and control assembly, and the display and control assembly is electrically connected with the main control board.
According to some embodiments of the utility model, the oil and gas fracturing monitoring data acquisition device further comprises a status indication unit, and the status indication unit is electrically connected with the main control board.
According to some embodiments of the present invention, the status indication unit employs a status indication panel, and the status indication panel is disposed on an outer surface of the box body and electrically connected to the main control board.
According to some embodiments of the utility model, the oil and gas fracturing monitoring data acquisition device further comprises a storage battery unit, and the storage battery unit is electrically connected with the power supply unit.
According to some embodiments of the utility model, the oil-gas fracturing monitoring data acquisition device further comprises an electric quantity detection unit arranged in the box body, and the electric quantity detection unit is electrically connected with the main control board and used for detecting the electric quantity of the storage battery unit.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an electrical system block diagram of a hydrocarbon fracturing monitoring data acquisition device of an embodiment of the present invention;
FIG. 2 is an electrical system block diagram of a main control board of an embodiment of the present invention;
FIG. 3 is a block diagram of an electrical system for a channel acquisition board according to an embodiment of the present invention;
FIG. 4 is an electrical system block diagram of a channel unit of an embodiment of the present invention;
FIG. 5 is a circuit schematic of a channel cell of an embodiment of the present invention;
FIG. 6 is a schematic view of a fracturing well layout (vertical well) in oil and gas fracturing detection according to an embodiment of the utility model;
FIG. 7 is a schematic diagram of a fracturing well layout (horizontal well) in oil and gas fracturing detection according to an embodiment of the utility model;
FIG. 8 is a schematic front view of the case according to the embodiment of the present invention;
fig. 9 is an isometric view of a case in an embodiment of the utility model.
Reference numerals:
a power supply unit 100,
A main control board 200, a first controller 210, a communication unit 220, a storage unit 230, a time service unit 240,
A junction box 300,
A channel acquisition board 400, a second controller 410, a channel unit 420, a differential amplification unit 421, a filter unit 422, a program control amplification unit 423, an ADC unit 430, a CPLD unit 440, a,
A display and control assembly 500,
A status indication unit 600,
A battery cell 700,
An electric quantity detection unit 800,
The device comprises a box body 900, a voltage input interface 910, a 4G antenna interface 920, a main switch 930, a USB interface 940, a GPS antenna interface 950, a measurement reference point 960, a channel unit interface 970, a status indicator 980 and a buzzer 990.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the directional descriptions, such as the directions of upper, lower, front, rear, left, right, etc., are referred to only for convenience of describing the present invention and for simplicity of description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
An oil and gas fracture monitoring data acquisition device according to an embodiment of the present invention is described below with reference to fig. 1 to 9.
The oil-gas fracturing monitoring data acquisition device comprises a box body 900, a power supply unit 100, a main control board 200, N junction boxes 300 arranged outside the box body 900 and N channel acquisition boards 400 arranged in the box body 900.
The power supply unit 100 is disposed in the case 900; the main control board 200 is disposed in the case 900; the N junction boxes 300 are arranged outside the box body 900, each junction box 300 is provided with M input ends, and the M input ends of the junction boxes 300 are connected with the M potential sensors in a one-to-one correspondence mode; each potential sensor is arranged on the ground surface of the area where the fracturing well is located, and each potential sensor is used for collecting potential difference signals between the fracturing well and the potential sensor; the input ends of the N channel collection boards 400 all disposed in the box 900 are connected to the output ends of the N junction boxes 300 in a one-to-one correspondence, and the output ends of the N channel collection boards 400 are electrically connected to the main control board 200.
The fractured well is divided into a vertical well and a horizontal well, as shown in fig. 6 and 7, fig. 6 is a layout schematic diagram of the vertical well, fig. 7 is a layout schematic diagram of the horizontal well, a wellhead a of the fractured well is used as a base value of a measuring electrode, and the base value is defined to be zero, so that a potential difference Uc can be formed between any point M on the ground (i.e., M1, M2, … shown in fig. 6 and 7) and the wellhead a, and thus a bench array type or a ray type measuring point (i.e., M potential sensors can be arranged in a bench array type or a ray type) can be arranged on the ground above a wellbore trajectory regardless of the vertical well or the horizontal well. The other pole of the measuring points is the basic value of the well head A, so that the underground fracturing condition can be reflected in real time as the electric field is continuously changed and the measured value of the ground measuring point is continuously changed along with the change of the time mass body of the underground fracturing. The oil gas fracturing monitoring system comprises an acquisition device (namely the oil gas fracturing monitoring data acquisition device of the embodiment of the utility model) and a transmitting device, wherein the transmitting device transmits a pseudo-random signal current waveform to a fracturing layer through a shaft, and the oil gas fracturing monitoring data acquisition device induces a pseudo-random signal electric field signal on the ground through a potential sensor (namely the table array type or ray type measuring point) and extracts characteristic parameters of the signal. It should be noted that the transmitting device is mainly used for inputting test electrical signals (for example, square waves in various forms) to the fractured well, during actual operation, one end of the transmitting device is connected to a wellhead of the fractured well (i.e., a shown in fig. 6 and 7), and the other end of the transmitting device is connected to infinity (i.e., a shown in fig. 6 and 7, which can also be understood as grounding).
According to the oil gas fracturing monitoring data acquisition device of the embodiment of the utility model, the power supply unit 100 provides electric energy for the oil gas fracturing monitoring data acquisition device, when the transmitting device inputs test alternating current to a fracturing well, the potential sensors are all arranged on the ground surface of the area where the fracturing well is located, M potential sensors acquire potential difference signals between the fracturing well and the potential sensors, each potential sensor inputs the acquired potential difference signal into the junction box 300 through the input end of the junction box 300 corresponding to the potential sensor one by one, the junction box 300 inputs the acquired potential difference signal into the channel acquisition board 400 in the box body 900 corresponding to the junction box 300, the channel acquisition board 400 processes the input potential difference signal, the channel acquisition board 400 is connected with the main control board 200, and the channel acquisition board 400 inputs the acquired data of the potential difference signal into the main control board 200, and the acquisition of oil-gas fracturing monitoring data is realized. Compared with the ground micro-seismic monitoring technology, the crack detection method based on the potential difference signal has the advantages that more interference factors can be eliminated, and more accurate crack data can be acquired. Meanwhile, the oil-gas fracturing monitoring data acquisition device provided by the embodiment of the utility model is small in arrangement difficulty and low in implementation difficulty, and is suitable for industrial popularization. It should be noted that, in order to assist M potential sensors in completing the acquisition of the potential difference Uc, the oil and gas fracturing monitoring data acquisition device according to the embodiment of the present invention further includes a common electrode (N shown in fig. 6 and 7), and the common electrode is connected to the wellhead a, so that the M potential sensors can acquire the potential difference signal between the fracturing well and the potential sensor with the wellhead a as a reference.
In some embodiments of the present invention, the potential sensor may be a metal sensor, and specifically, a copper sheet or a copper pipe may be used.
In some embodiments of the present invention, the channel collecting portion is composed of 6 channel collecting boards 400, the 6 channel collecting boards 400 are respectively connected to the 6 external junction boxes 300 through panel plugs, each channel collecting board 400 includes 12 channel units 420, and one oil gas fracture monitoring data collecting device includes 12 × 6 — 72 channel units 420.
Referring to fig. 1 to 2, in some embodiments of the present invention, the main control board 200 includes: a first controller 210, a communication unit 220, and a storage unit 230. The communication unit 220 is electrically connected to the first controller 210, and is configured to perform data transmission with the N channel acquisition boards 400; the memory unit 230 is electrically connected to the first controller 210. The M potential sensors are used as measuring points for collecting electric signals above the fracturing well, the electric signals collected by the M potential sensors are further transmitted to the M channel collecting plates 400 through the junction box 300, and finally the electric signals are uniformly transmitted to the communication unit 220 by the M channel collecting plates 400 and are finally transmitted to the first controller 210 through the communication unit 220. The first controller 210 further stores all received electrical signals in the storage unit 230, so that the storage of the collected data is realized, the subsequent data analysis of the collected electrical signals is facilitated, and the data security is improved to prevent data loss. In some embodiments of the present invention, the storage unit 230 may be an external Flash storage or an external EEPROM storage, and may store and export the collected data.
In some embodiments of the present invention, the communication unit 220 may adopt an RS485 communication module, or may adopt other common communication modules according to the use requirement.
In some embodiments of the utility model, the first controller 210 may employ a series of STM32, such as STM32F405RGT 6.
Referring to fig. 2, in some embodiments of the present invention, the main control board 200 further includes a time service unit 240, and the time service unit 240 is electrically connected to the first controller 210. The first controller 210 sends an instruction to the time service unit 240, and the time service unit 240 performs time calibration on the first controller 210 after receiving the instruction, so as to implement synchronous transmission of data. In some embodiments of the utility model, the oil and gas fracturing monitoring data acquisition device and the transmitting device are both provided with GPS modules and GPS antennas, so that the accurate synchronization between the oil and gas fracturing monitoring data acquisition device and the transmitting device can be realized by utilizing a GPS synchronization mode. In some embodiments of the present invention, the synchronous clock source of channel acquisition board 400 is provided by the master control board.
Referring to fig. 3, in some embodiments of the utility model, junction box 300 has M outputs, and channel acquisition board 400 includes: a second controller 410, M channel units 420, 2 ADC units 430, and a CPLD unit 440. The second controller 410 is electrically connected to the main control board 200, the input terminals of the M channel units 420 are correspondingly connected to the M output terminals of the junction box 300, each ADC unit 430 is electrically connected to the output terminals of the M/2 channel units 420, and the CPLD unit 440 is electrically connected to the second controller 410 and the 2 ADC units 430, respectively. Each junction box 300 is connected with M potential sensors, the electric signals of the fracturing well collected by the M potential sensors are output to M channel units 420 through the junction box 300, the channel units 420 process the obtained electric signals and then input to the ADC unit 430, and the processed electric signals are transmitted to the CPLD unit 440 through the ADC unit 430 for buffering and then input to the second controller 410. It should be noted that the number of the ADC units 430 is 2, each ADC unit 430 receives the electrical signals processed by the M/2 channel units 420, the ADC units 430 process the electrical signals, convert the electrical signals into digital signals, and buffer the converted digital signals in the CPLD unit 440, and the CPLD unit 440 is configured to buffer the acquired data of the two ADC units 430, reduce the data transmission pressure of the second controller 410, and provide a clock source for the ADC units 430. In some embodiments of the present invention, the ADC unit 430 is an 8-channel ADC, and the CPLD unit 440 is a chip model EMP570T 100I. It should be noted that more ADC units 430 may be used for conversion, so as to reduce the amount of data conversion of a single ADC unit 430.
In some embodiments of the present invention, the second controller 410 employs a 32-bit high-speed embedded processor, and a RAM memory is externally attached to ensure that data of 12 channels are processed simultaneously. In some embodiments, a 32-bit high-speed embedded processor model number STM32F407ZGT6 is employed.
Referring to fig. 4 and 5, in some embodiments of the above described invention, the channel unit 420 includes a differential amplification unit 421, a filtering unit 422, and a programmed amplification unit 423. The input end of the differential amplification unit 421 is electrically connected to the output end of the junction box 300, and is configured to amplify the electrical signal output by the junction box 300; the input end of the filtering unit 422 is electrically connected to the output end of the differential amplifying unit 421; the input end of the program-controlled amplifying unit 423 is electrically connected to the output end of the filtering unit 422, and the output end is electrically connected to the input end of the ADC unit 430, for increasing the power of the electrical signal output by the filtering unit 422. The junction box 300 inputs the electric signal collected by the potential sensor into the differential amplification unit 421 of the channel unit 420, the differential amplification unit 421 performs differential amplification processing on the collected electric signal, the electric signal processed by the differential amplification unit 421 is input into the filtering unit 422, the filtering unit 422 filters unnecessary wave band frequencies in the electric signal to suppress interference, the filtering unit 422 performs filtering processing on the electric signal, the electric signal is input into the program-controlled amplification unit 423 to perform program-controlled amplification processing on the electric signal, the processed electric signal is output to the ADC unit 430, the differential amplification unit 421, the filtering unit 422 and the program-controlled amplification unit 423 perform processing on the electric signal to enable the electric signal to be more accurate, and accuracy of acquiring oil-gas fracturing monitoring data through the electric signal is improved. In some embodiments of the present invention, the differential amplifying unit 421 uses a precision differential operational amplifier, and the resistor capacitors related to signal amplification and filtering use a precision resistor with high precision and low temperature drift and an NPO capacitor to ensure optimal stability.
Referring to fig. 1, in some embodiments of the present invention, the oil and gas fracturing monitoring data collecting device further includes a display and control assembly 500, and the display and control assembly 500 is electrically connected to the main control board 200. Display and control subassembly 500 and main control panel 200 electric connection, the user can look over the data that obtain the signal of telecommunication at present through display and control subassembly 500 to can look over the operating condition, the electric quantity state etc. of each part of current device through display and control subassembly 500. In some embodiments of the present invention, the whole display and control assembly 500 may be a tablet computer directly, or may be a combination structure of a liquid crystal display and a keyboard.
In some embodiments of the utility model, the oil and gas fracturing monitoring data acquisition device further comprises a 4G module, and the 4G module can realize data interaction with the remote monitoring end, realize a remote monitoring function, and simultaneously facilitate transmission of data acquired by the oil and gas fracturing monitoring data acquisition device to the remote monitoring end for subsequent fracturing data analysis. In addition, remote backup can be realized by transmitting the data to the remote monitoring end, and the situation that the data cannot be restored after the local data are lost is avoided.
Referring to fig. 1, in some embodiments of the present invention, the oil and gas fracture monitoring data collecting apparatus further includes a status indicating unit 600, and the status indicating unit 600 is electrically connected to the main control board 200. The main control panel 200 transmits the current working state to the state indicating unit 600, and the state indicating unit 600 is used for indicating the current working state of the main control panel 200, so that a user can know the current working state of the device conveniently.
Referring to fig. 1 to 9, in some embodiments of the present invention, the status indication unit 600 employs a status indication panel, and the status indication panel is disposed on an outer surface of the box 900 and electrically connected to the main control board 200. The state indicating panel provided on the outer surface of the case 900 indicates the current working state of the main control panel 200, and the state indicating panel provided on the outer surface of the case 900 makes it more convenient to check the working state. In some embodiments of the present invention, the status indication panel is controlled by the main control panel 200 to display the 4G status, the GPS status, and the operating status of the acquisition device. In some embodiments of the present invention, the status indication panel is provided with a plurality of status indicator lights 980 with which the indication of the operational status may be accomplished. In some embodiments of the present invention, the status indication panel may employ a display, and the current working status is visually displayed through the display.
Referring to fig. 1, in some embodiments of the present invention, the oil and gas fracture monitoring data acquisition device further includes a battery unit 700, and the battery unit 700 is electrically connected to the power supply unit 100. The battery unit 700 supplies power to the power supply unit 100. In some embodiments of the present invention, the battery cell 700 may employ a lithium battery pack. In some embodiments of the present invention, the battery cell 700 may be disposed outside the case 900.
Referring to fig. 1, in some embodiments of the present invention, the oil and gas fracturing monitoring data collecting device further includes an electric quantity detecting unit 800 disposed in the box 900, and the electric quantity detecting unit 800 is electrically connected to the main control board 200 and is configured to detect an electric quantity of the battery unit 700. The electric quantity detection unit 800 obtains the electric quantity of the current storage battery unit 700 through the main control board 200, and a user can know the electric quantity condition of the current device through the electric quantity detection unit 800, so as to ensure that the electric quantity can maintain the normal work of the current device. The main control board 200 detects the electric quantity of the storage battery unit 700 in real time, and gives an alarm when undervoltage occurs. In some embodiments of the utility model, the input voltage range of the oil-gas fracturing monitoring data acquisition device is 9-12V, and the current of the whole machine is about 4A when the whole machine works. In some embodiments of the present invention, the power status of the device may be queried through the display and control component 500, and the remaining power of the device and whether an external power source is in a charging state are displayed. It should be noted that the power detection unit 800 may directly adopt a common power detection circuit.
Referring to fig. 1 to 9, in some embodiments of the present invention, a surface of a case 900 is provided with a voltage input interface 910, a 4G antenna interface 920, a main switch 930, a USB interface 940, a GPS antenna interface 950, a measurement reference point 960, a channel unit interface 970, a status indicator 980 and a buzzer 990. And an external power supply is connected with the voltage input interface 910 to input voltage to the oil-gas fracturing monitoring data acquisition device. The external 4G antenna is connected with the 4G module through the 4G antenna interface 920, and the function of data interaction between the 4G module and the remote monitoring end is achieved. The main switch 930 on the surface of the box 900 is connected with the main control board 200 to realize the main control of the working state of the device. The USB interface 940 is connected to the storage unit 230, and may export the collected data through the USB interface by using an external storage device. The GPS antenna is connected with the GPS module through a GPS antenna interface 950, and the precise synchronization between the oil gas fracturing monitoring data acquisition device and the transmitting device is realized by utilizing a GPS synchronization mode. The wellhead of the fracturing well (i.e., a in fig. 6 and 7) is connected to a measurement reference point 960 as the base value for the measurement electrode. The 6 channel acquisition boards 400 are respectively connected with the 6 external junction boxes 300 through the channel unit interfaces 970. The status indicator 980 is used for displaying the current working status of the acquisition device, and when the acquisition device fails, the buzzer 990 is used for alerting a user.
Referring to fig. 8 and 9, in some embodiments of the present invention, a handle is provided on a surface of the box 900 to facilitate movement of the box 900, and a skidproof and crash-proof component is provided on a surface of the box 900 to provide a certain protection for the box 900.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the embodiments, and those skilled in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a hydrocarbon fracturing monitoring data collection system which characterized in that includes:
a box body;
the power supply unit is arranged in the box body;
the main control board is arranged in the box body;
the N junction boxes are arranged outside the box body, each junction box is provided with M input ends, and the M input ends of the junction boxes are connected with the M potential sensors in a one-to-one correspondence manner; each potential sensor is arranged on the ground surface of the area where the fracturing well is located, and each potential sensor is used for collecting a potential difference signal between the fracturing well and the potential sensor;
n all set up in the board is gathered to the passageway in the box, N the input of board is gathered to the passageway is with N the output one-to-one of terminal box is connected, N the output of board is gathered to the passageway all with the main control board electric connection.
2. The hydrocarbon fracture monitoring data acquisition device of claim 1, wherein the main control panel comprises:
a first controller;
the communication unit is electrically connected with the first controller and is used for carrying out data transmission with the N channel acquisition boards;
and the storage unit is electrically connected with the first controller.
3. The oil and gas fracturing monitoring data acquisition device of claim 2, wherein the main control panel further comprises a time service unit, and the time service unit is electrically connected with the first controller.
4. The hydrocarbon fracturing monitoring data acquisition device of claim 1, wherein the junction box has M outputs, the channel acquisition board comprising:
the second controller is electrically connected with the main control board;
the input ends of the M channel units are correspondingly connected with the M output ends of the junction box one by one;
each ADC unit is electrically connected with the output ends of the M/2 channel units;
and the CPLD unit is electrically connected with the second controller and the 2 ADC units respectively.
5. The hydrocarbon fracturing monitoring data acquisition device of claim 4, wherein the channel unit comprises:
the input end of the differential amplification unit is electrically connected with the output end of the junction box and is used for amplifying the electric signal output by the junction box;
the input end of the filtering unit is electrically connected with the output end of the differential amplification unit;
and the input end of the program control amplification unit is electrically connected with the output end of the filtering unit, and the output end of the program control amplification unit is electrically connected with the input end of the ADC unit and used for increasing the power of the electric signal output by the filtering unit.
6. The oil and gas fracturing monitoring data acquisition device of claim 1, further comprising a display and control assembly, wherein the display and control assembly is electrically connected with the main control panel.
7. The oil and gas fracturing monitoring data acquisition device of claim 1, further comprising a status indication unit, wherein the status indication unit is electrically connected with the main control panel.
8. The oil and gas fracturing monitoring data acquisition device of claim 7, wherein the status indication unit employs a status indication panel, and the status indication panel is disposed on the outer surface of the box body and electrically connected with the main control panel.
9. The oil and gas fracturing monitoring data acquisition device of claim 1 further comprising a battery unit, wherein the battery unit is electrically connected to the power supply unit.
10. The oil and gas fracturing monitoring data acquisition device of claim 9, further comprising an electric quantity detection unit arranged in the box body, wherein the electric quantity detection unit is electrically connected with the main control board and used for detecting the electric quantity of the storage battery unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220046783.7U CN216792458U (en) | 2022-01-10 | 2022-01-10 | Oil gas fracturing monitoring data acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220046783.7U CN216792458U (en) | 2022-01-10 | 2022-01-10 | Oil gas fracturing monitoring data acquisition device |
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| CN216792458U true CN216792458U (en) | 2022-06-21 |
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| CN202220046783.7U Active CN216792458U (en) | 2022-01-10 | 2022-01-10 | Oil gas fracturing monitoring data acquisition device |
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- 2022-01-10 CN CN202220046783.7U patent/CN216792458U/en active Active
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