Online monitoring device and method, electronic equipment, storage medium and chip

Abstract

The invention provides an online monitoring device and method, electronic equipment, a storage medium and a chip, and relates to the technical field of oilfield produced water multi-index monitoring. The reference electrode is connected with the sealed metal shell; the aluminum alloy electrode is connected with the reference electrode; the silver chloride electrode is connected with the reference electrode; a conductivity sensor; a corrosion rate sensor; the data acquisition core plate is connected with the sealed metal shell, the reference electrode, the aluminum alloy electrode, the silver chloride electrode, the conductivity sensor and the corrosion rate sensor, and the data acquisition core plate determines the pipeline potential through the sealed metal shell and the reference electrode; the data acquisition core plate determines a first calculation parameter of a pH value through the aluminum alloy electrode and the reference electrode, determines a second calculation parameter of a chloride ion content value through the silver chloride electrode and the reference electrode, determines a conductivity parameter through the conductivity sensor, and determines a corrosion rate through the corrosion rate sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of oilfield produced water multi-indicator monitoring, and in particular to an oilfield produced water multi-indicator online monitoring device, an oilfield produced water multi-indicator online monitoring method, an electronic device, a computer-readable storage medium and a chip. Background Art

[0002] In the industrial water quality monitoring methods of related technologies, the titration comparison method is mainly used to judge whether the water quality meets the standard. However, this method requires manual testing through corresponding titration equipment after manual sampling, which has problems such as long inspection cycle and cumbersome sampling process. Summary of the invention

[0003] In order to solve or improve at least one of the above technical problems, an object of the present invention is to provide an oilfield produced water multi-indicator online monitoring device.

[0004] Another object of the present invention is to provide a method for online monitoring of multiple indicators of oilfield produced water.

[0005] Another object of the present invention is to provide an electronic device.

[0006] Another object of the present invention is to provide a computer-readable storage medium.

[0007] Another object of the present invention is to provide a chip.

[0008] To achieve the above-mentioned purpose, the first aspect of the present invention provides an oilfield produced water multi-indicator online monitoring device, including: a sealed metal shell; a reference electrode connected to the sealed metal shell; an aluminum alloy electrode connected to the reference electrode; a silver chloride electrode connected to the reference electrode; a conductivity sensor; a corrosion rate sensor; a data acquisition core board connected to the sealed metal shell, the reference electrode, the aluminum alloy electrode, the silver chloride electrode, the conductivity sensor and the corrosion rate sensor, the data acquisition core board determines the pipeline potential through the sealed metal shell and the reference electrode, the data acquisition core board determines the first calculation parameter of the pH value through the aluminum alloy electrode and the reference electrode, the data acquisition core board determines the second calculation parameter of the chloride ion content value through the silver chloride electrode and the reference electrode, the data acquisition core board determines the conductivity parameter through the conductivity sensor, and the data acquisition core board determines the corrosion rate through the corrosion rate sensor.

[0009] According to the technical solution of the multi-indicator online monitoring device for oilfield produced water provided by the present invention, the multi-indicator online monitoring device for oilfield produced water integrates a variety of sensors (cathodic protection data sensor, pH sensor, chloride ion sensor, conductivity sensor and corrosion rate sensor), and the data acquisition core board can complete the data acquisition of pipeline potential, the first calculation parameter of pH value, the second calculation parameter of chloride ion content value, conductivity parameter and corrosion rate. The multi-indicator online monitoring device for oilfield produced water can monitor the changes of various data in water quality in real time online, thereby solving the non-real-time and random problems of manual monitoring, which is conducive to reducing the labor intensity of staff, improving work efficiency and the accuracy of monitoring data. In addition, the data acquisition core board can transmit the monitored real-time data to the information platform or management system platform to achieve the overall management of water quality monitoring data.

[0010] Specifically, the oilfield produced water multi-index online monitoring device includes a sealed metal shell, a reference electrode, an aluminum alloy electrode, a silver chloride electrode, a conductivity sensor, a corrosion rate sensor and a data acquisition core board. Among them, the data acquisition core board is connected with the sealed metal shell, the reference electrode, the aluminum alloy electrode, the silver chloride electrode, the conductivity sensor and the corrosion rate sensor.

[0011] Optionally, the sealed metal shell and the reference electrode constitute a cathodic protection data sensor. The data acquisition core board determines the pipeline potential through the sealed metal shell and the reference electrode. Optionally, the sealed metal shell has a first potential, the reference electrode has a second potential, and the data acquisition core board determines the pipeline potential according to the potential difference between the second potential and the first potential. Optionally, the reference electrode is a high-purity zinc electrode.

[0012] Optionally, the aluminum alloy electrode and the reference electrode form a pH sensor (PH sensor). The data acquisition core board determines the first calculation parameter of the pH value through the aluminum alloy electrode and the reference electrode. Optionally, the reference electrode has a second potential, the aluminum alloy electrode has a third potential, and the data acquisition core board determines the first calculation parameter of the pH value of the measured water quality according to the potential difference between the second potential and the third potential.

[0013] Optionally, the silver chloride electrode and the reference electrode form a chloride ion sensor. The data acquisition core board determines the second calculation parameter of the chloride ion content value through the silver chloride electrode and the reference electrode. Optionally, the reference electrode has a second potential, the silver chloride electrode has a fourth potential, and the data acquisition core board determines the second calculation parameter of the chloride ion content value of the measured water quality according to the potential difference between the second potential and the fourth potential.

[0014] Further, the data acquisition core board determines the conductivity parameter through a conductivity sensor. Optionally, the conductivity sensor includes a first stainless steel electrode and a second stainless steel electrode connected to each other. The data acquisition core board determines the conductivity parameter through the first stainless steel electrode and the second stainless steel electrode. Optionally, a first voltage is applied to the first stainless steel electrode and the second stainless steel electrode, and the first stainless steel electrode and the second stainless steel electrode determine that the current of the measured water quality is a first current, and the first voltage divided by the first current is the conductivity parameter of the measured water quality.

[0015] Furthermore, the data acquisition core board determines the corrosion rate through a corrosion rate sensor. Optionally, the corrosion rate sensor includes a first corrosion test piece and a second corrosion test piece connected to each other. The data acquisition core board determines the corrosion rate through the first corrosion test piece and the second corrosion test piece. Optionally, the first corrosion test piece and the second corrosion test piece are connected in series in the circuit. The parameters of the first corrosion test piece and the second corrosion test piece before leaving the factory are basically the same. In the corrosion rate sensor, the first corrosion test piece is provided with a protective coating and is basically not corroded; the second corrosion test piece has no protective coating and is usually corroded by the environment, and its resistance value will increase after corrosion. After measuring the resistance values ​​of the two corrosion test pieces by the current method, the corrosion rate can be calculated through the time interval.

[0016] It should be noted that the multiple monitoring electrodes (reference electrode, aluminum alloy electrode and silver chloride electrode), conductivity sensor and corrosion rate sensor of the multi-indicator online monitoring device for oilfield produced water need to be completely immersed in the water environment being measured when working. Optionally, the multi-indicator online monitoring device for oilfield produced water is installed inside the produced water treatment pipeline of the oilfield production and development joint station, and can monitor various data changes in water quality in real time online, thereby solving the non-real-time and randomness problems of manual monitoring. Optionally, the data acquisition core board includes a data communication port. The data communication port is used to connect to an information platform or a management system platform. The data acquisition core board can transmit the monitored real-time data to the information platform or the management system platform so as to realize the overall management of water quality monitoring data.

[0017] Optionally, the multi-indicator online monitoring device for oilfield produced water integrates a variety of sensors (cathode protection data sensor, pH sensor, chloride ion sensor, conductivity sensor and corrosion rate sensor). Optionally, the cathodic protection data sensor is connected to the data acquisition core board via a connecting cable. Optionally, the pH sensor is connected to the data acquisition core board via a connecting cable. Optionally, the chloride ion sensor is connected to the data acquisition core board via a connecting cable. Optionally, the conductivity sensor is connected to the data acquisition core board via a connecting cable. Optionally, the corrosion rate sensor is connected to the data acquisition core board via a connecting cable. Optionally, the connecting cable is a multi-core cable. Optionally, the data acquisition core board is integrated with an isolation acquisition circuit, a data storage circuit, a watchdog circuit, a clock circuit and a data communication circuit. The data acquisition core board can complete the data acquisition of the pipeline potential, the first calculation parameter of the pH value, the second calculation parameter of the chloride ion content value, the conductivity parameter and the corrosion rate. Since the data acquisition core board includes a data communication port, the data acquisition core board can be connected to an external device for communication to achieve data transmission. Optionally, the data includes the above collected data and modifiable parameters, etc.

[0018] Optionally, the data acquisition core board is arranged inside the sealed metal shell to ensure that the oilfield produced water multi-indicator online monitoring device can be suitable for different application scenarios.

[0019] In the technical solution defined in the present invention, the multi-index online monitoring device for oilfield produced water integrates a variety of sensors (cathodic protection data sensor, pH sensor, chloride ion sensor, conductivity sensor and corrosion rate sensor), and the data acquisition core board can complete the data acquisition of pipeline potential, the first calculation parameter of pH value, the second calculation parameter of chloride ion content value, conductivity parameter and corrosion rate. The multi-index online monitoring device for oilfield produced water can monitor the changes of various data in water quality in real time online, thereby solving the non-real-time and random problems of manual monitoring, which is conducive to reducing the labor intensity of staff, improving work efficiency and the accuracy of monitoring data. In addition, the data acquisition core board can transmit the monitored real-time data to the information platform or management system platform to achieve the overall management of water quality monitoring data.

[0020] In addition, the above technical solution provided by the present invention may also have the following additional technical features:

[0021] In some technical solutions, optionally, the sealed metal shell has a first potential, the reference electrode has a second potential, and the data acquisition core board determines the pipeline potential according to the potential difference between the second potential and the first potential.

[0022] In this technical solution, the data acquisition core board determines the pipeline potential through a sealed metal shell and a reference electrode.

[0023] In some technical solutions, optionally, the aluminum alloy electrode has a third potential, and the data acquisition core board determines the first calculation parameter according to the potential difference between the second potential and the third potential.

[0024] In this technical solution, the data acquisition core board determines the first calculation parameter of the pH value through the aluminum alloy electrode and the reference electrode.

[0025] In some technical solutions, optionally, the silver chloride electrode has a fourth potential, and the data acquisition core board determines the second calculation parameter according to the potential difference between the second potential and the fourth potential.

[0026] In this technical solution, the data acquisition core board determines the second calculation parameter of the chloride ion content value through the silver chloride electrode and the reference electrode.

[0027] In some technical solutions, optionally, the conductivity sensor includes a first stainless steel electrode and a second stainless steel electrode connected to each other, and the data acquisition core board determines the conductivity parameter through the first stainless steel electrode and the second stainless steel electrode.

[0028] In this technical solution, a first voltage is applied to the first stainless steel electrode and the second stainless steel electrode, the first stainless steel electrode and the second stainless steel electrode determine the current of the measured water quality as the first current, and the first voltage divided by the first current is the conductivity parameter of the measured water quality.

[0029] In some technical solutions, optionally, the corrosion rate sensor includes a first corrosion test piece and a second corrosion test piece connected to each other, and the data acquisition core board determines the corrosion rate through the first corrosion test piece and the second corrosion test piece.

[0030] In this technical solution, the first corrosion test piece and the second corrosion test piece are connected in series in the circuit. The parameters of the first corrosion test piece and the second corrosion test piece before leaving the factory are basically the same. In the corrosion rate sensor, the first corrosion test piece is provided with a protective coating and is basically not corroded; the second corrosion test piece has no protective coating and is usually corroded by the environment, and its resistance value will increase after corrosion. After measuring the resistance values ​​of the two corrosion test pieces by the current method, the corrosion rate can be calculated by the time interval.

[0031] The second aspect of the present invention provides a multi-indicator online monitoring method for oilfield produced water, which is applied to the data acquisition core board of the multi-indicator online monitoring device for oilfield produced water in any of the above-mentioned technical solutions. The multi-indicator online monitoring method for oilfield produced water includes: determining the pipeline potential through a sealed metal shell and a reference electrode; determining a first calculation parameter of the pH value through an aluminum alloy electrode and a reference electrode; determining a second calculation parameter of the chloride ion content value through a silver chloride electrode and a reference electrode; determining a conductivity parameter through a conductivity sensor; and determining a corrosion rate through a corrosion rate sensor.

[0032] According to the technical solution of the multi-indicator online monitoring method of oilfield produced water of the present invention, the multi-indicator online monitoring method of oilfield produced water is applied to the data acquisition core board of the multi-indicator online monitoring device of oilfield produced water in any of the above technical solutions. The steps of the multi-indicator online monitoring method of oilfield produced water include:

[0033] The pipeline potential is determined by the sealed metal shell and the reference electrode; the first calculation parameter of the pH value is determined by the aluminum alloy electrode and the reference electrode; the second calculation parameter of the chloride ion content value is determined by the silver chloride electrode and the reference electrode; the conductivity parameter is determined by the conductivity sensor; the corrosion rate is determined by the corrosion rate sensor. Optionally, the sealed metal shell and the reference electrode constitute a cathodic protection data sensor. The data acquisition core board determines the pipeline potential through the sealed metal shell and the reference electrode. Optionally, the sealed metal shell has a first potential, the reference electrode has a second potential, and the data acquisition core board determines the pipeline potential according to the potential difference between the second potential and the first potential. Optionally, the reference electrode is a high-purity zinc electrode. Optionally, the aluminum alloy electrode and the reference electrode constitute a pH value sensor (PH value sensor). The data acquisition core board determines the first calculation parameter of the pH value through the aluminum alloy electrode and the reference electrode. Optionally, the reference electrode has a second potential, the aluminum alloy electrode has a third potential, and the data acquisition core board determines the first calculation parameter of the pH value of the measured water quality according to the potential difference between the second potential and the third potential. Optionally, the silver chloride electrode and the reference electrode form a chloride ion sensor. The data acquisition core board determines the second calculation parameter of the chloride ion content value through the silver chloride electrode and the reference electrode. Optionally, the reference electrode has a second potential, the silver chloride electrode has a fourth potential, and the data acquisition core board determines the second calculation parameter of the chloride ion content value of the measured water quality according to the potential difference between the second potential and the fourth potential. Optionally, the data acquisition core board determines the conductivity parameter through the first stainless steel electrode and the second stainless steel electrode. Optionally, a first voltage is applied to the first stainless steel electrode and the second stainless steel electrode, and the first stainless steel electrode and the second stainless steel electrode determine that the current of the measured water quality is the first current, and the first voltage divided by the first current is the conductivity parameter of the measured water quality. Optionally, the data acquisition core board determines the corrosion rate through the first corrosion test piece and the second corrosion test piece. Optionally, the first corrosion test piece and the second corrosion test piece are connected in series in the circuit. The parameters of the first corrosion test piece and the second corrosion test piece before leaving the factory are basically the same. In the corrosion rate sensor, the first corrosion test piece is provided with a protective coating and is basically not corroded; the second corrosion test piece is not provided with a protective coating and is usually corroded by the environment, and its resistance value will increase after corrosion. The corrosion rate can be calculated by measuring the resistance values ​​of the two corrosion test pieces using the current method and the time interval.

[0034] The third aspect of the present invention provides an electronic device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the multi-indicator online monitoring method for oilfield produced water in the above-mentioned technical solution are implemented.

[0035] A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the multi-indicator online monitoring method for oilfield produced water in the above technical solution.

[0036] A fifth aspect of the present invention provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the multi-indicator online monitoring method of oilfield produced water in the above technical solution.

[0037] Additional aspects and advantages of the technical solutions of the present invention will become apparent in the following description or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of a multi-index online monitoring device for oilfield produced water according to an embodiment of the present invention is shown;

[0039] Figure 2 A flow chart of a method for online monitoring of multiple indicators of oilfield produced water according to an embodiment of the present invention is shown.

[0040] in, Figure 1 The corresponding relationship between the reference numerals and the component names is as follows:

[0041] 100: multi-index online monitoring device for oilfield produced water; 110: sealed metal shell; 120: reference electrode; 130: aluminum alloy electrode; 140: silver chloride electrode; 150: conductivity sensor; 151: first stainless steel electrode; 152: second stainless steel electrode; 160: corrosion rate sensor; 161: first corrosion test piece; 162: second corrosion test piece; 170: data acquisition core board. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0044] Refer to the following Figure 1 and Figure 2 The invention describes an oilfield produced water multi-indicator online monitoring device 100, an oilfield produced water multi-indicator online monitoring method, an electronic device, a computer-readable storage medium and a chip provided according to some embodiments of the invention.

[0045] In one embodiment according to the present invention, Figure 1 As shown, the oilfield produced water multi-index online monitoring device 100 includes a sealed metal shell 110, a reference electrode 120, an aluminum alloy electrode 130, a silver chloride electrode 140, a conductivity sensor 150, a corrosion rate sensor 160 and a data acquisition core board 170. Among them, the data acquisition core board 170 is connected to the sealed metal shell 110, the reference electrode 120, the aluminum alloy electrode 130, the silver chloride electrode 140, the conductivity sensor 150 and the corrosion rate sensor 160.

[0046] Optionally, the sealed metal housing 110 and the reference electrode 120 form a cathodic protection data sensor. The data acquisition core board 170 determines the pipeline potential through the sealed metal housing 110 and the reference electrode 120. Optionally, the sealed metal housing 110 has a first potential, the reference electrode 120 has a second potential, and the data acquisition core board 170 determines the pipeline potential according to the potential difference between the second potential and the first potential. Optionally, the reference electrode 120 is a high-purity zinc electrode.

[0047] Optionally, the aluminum alloy electrode 130 and the reference electrode 120 form a pH sensor (pH sensor). The data acquisition core board 170 determines a first calculation parameter of the pH value through the aluminum alloy electrode 130 and the reference electrode 120. Optionally, the reference electrode 120 has a second potential, and the aluminum alloy electrode 130 has a third potential. The data acquisition core board 170 determines the first calculation parameter of the pH value of the measured water quality according to the potential difference between the second potential and the third potential.

[0048] Optionally, the silver chloride electrode 140 and the reference electrode 120 form a chloride ion sensor. The data acquisition core board 170 determines the second calculation parameter of the chloride ion content value through the silver chloride electrode 140 and the reference electrode 120. Optionally, the reference electrode 120 has a second potential, the silver chloride electrode 140 has a fourth potential, and the data acquisition core board 170 determines the second calculation parameter of the chloride ion content value of the measured water quality according to the potential difference between the second potential and the fourth potential.

[0049] Further, the data acquisition core board 170 determines the conductivity parameter through the conductivity sensor 150. Optionally, the conductivity sensor 150 includes a first stainless steel electrode 151 and a second stainless steel electrode 152 connected to each other. The data acquisition core board 170 determines the conductivity parameter through the first stainless steel electrode 151 and the second stainless steel electrode 152. Optionally, a first voltage is applied to the first stainless steel electrode 151 and the second stainless steel electrode 152, and the first stainless steel electrode 151 and the second stainless steel electrode 152 determine that the current of the measured water quality is the first current, and the first voltage divided by the first current is the conductivity parameter of the measured water quality.

[0050] Further, the data acquisition core board 170 determines the corrosion rate through the corrosion rate sensor 160. Optionally, the corrosion rate sensor 160 includes a first corrosion test piece 161 and a second corrosion test piece 162 connected to each other. The data acquisition core board 170 determines the corrosion rate through the first corrosion test piece 161 and the second corrosion test piece 162. Optionally, the first corrosion test piece 161 and the second corrosion test piece 162 are connected in series in the circuit. The parameters of the first corrosion test piece 161 and the second corrosion test piece 162 before leaving the factory are basically the same. In the corrosion rate sensor 160, the first corrosion test piece 161 is provided with a protective coating and is basically not corroded; the second corrosion test piece 162 has no protective coating and is usually corroded by the environment. After corrosion, its resistance value will increase. After measuring the resistance values ​​of the two corrosion test pieces by the current method, the corrosion rate can be calculated through the time interval.

[0051] It should be noted that the multiple monitoring electrodes (reference electrode 120, aluminum alloy electrode 130 and silver chloride electrode 140), conductivity sensor 150 and corrosion rate sensor 160 of the oilfield produced water multi-index online monitoring device 100 need to be completely immersed in the measured water environment when working. Optionally, the oilfield produced water multi-index online monitoring device 100 is installed inside the produced water treatment pipeline of the oilfield production and development joint station, and can monitor the various data changes in water quality in real time online, thereby solving the non-real-time and randomness problems of manual monitoring. Optionally, the data acquisition core board 170 includes a data communication port. The data communication port is used to connect to an information platform or a management system platform. The data acquisition core board 170 can transmit the monitored real-time data to the information platform or the management system platform so as to achieve the overall management of water quality monitoring data.

[0052] Optionally, the oilfield produced water multi-indicator online monitoring device 100 integrates a variety of sensors (cathode protection data sensor, pH sensor, chloride ion sensor, conductivity sensor 150 and corrosion rate sensor 160). Optionally, the cathodic protection data sensor is connected to the data acquisition core board 170 via a connecting cable. Optionally, the pH sensor is connected to the data acquisition core board 170 via a connecting cable. Optionally, the chloride ion sensor is connected to the data acquisition core board 170 via a connecting cable. Optionally, the conductivity sensor 150 is connected to the data acquisition core board 170 via a connecting cable. Optionally, the corrosion rate sensor 160 is connected to the data acquisition core board 170 via a connecting cable. Optionally, the connecting cable is a multi-core cable. Optionally, the data acquisition core board 170 is integrated with an isolation acquisition circuit, a data storage circuit, a watchdog circuit, a clock circuit and a data communication circuit. The data acquisition core board 170 can complete the data acquisition of the pipeline potential, the first calculation parameter of the pH value, the second calculation parameter of the chloride ion content value, the conductivity parameter and the corrosion rate. Since the data acquisition core board 170 includes a data communication port, the data acquisition core board 170 can communicate with external devices to achieve data transmission. Optionally, the data includes the above collected data and modifiable parameters.

[0053] Optionally, the data acquisition core board 170 is disposed inside the sealed metal housing 110 to ensure that the oilfield produced water multi-index online monitoring device 100 can be suitable for different application scenarios.

[0054] In the technical solution defined in the present invention, the multi-index online monitoring device 100 for produced water in oilfields integrates a variety of sensors (cathodic protection data sensor, pH sensor, chloride ion sensor, conductivity sensor 150 and corrosion rate sensor 160), and the data acquisition core board 170 can complete the data acquisition of pipeline potential, the first calculation parameter of pH value, the second calculation parameter of chloride ion content value, conductivity parameter and corrosion rate. The multi-index online monitoring device 100 for produced water in oilfields can monitor the changes of various data in water quality in real time online, thereby solving the non-real-time and random problems of manual monitoring, which is conducive to reducing the labor intensity of staff, improving work efficiency and the accuracy of monitoring data. In addition, the data acquisition core board 170 can transmit the monitored real-time data to an information platform or a management system platform to achieve the overall management of water quality monitoring data.

[0055] In some embodiments, optionally, the sealed metal housing 110 has a first potential, the reference electrode 120 has a second potential, and the data acquisition core board 170 determines the pipeline potential according to the potential difference between the second potential and the first potential. The data acquisition core board 170 determines the pipeline potential through the sealed metal housing 110 and the reference electrode 120.

[0056] In some embodiments, the aluminum alloy electrode 130 has a third potential, and the data acquisition core board 170 determines the first calculation parameter according to the potential difference between the second potential and the third potential. The data acquisition core board 170 determines the first calculation parameter of the pH value through the aluminum alloy electrode 130 and the reference electrode 120.

[0057] In some embodiments, the silver chloride electrode 140 has a fourth potential, and the data acquisition core board 170 determines the second calculation parameter according to the potential difference between the second potential and the fourth potential. The data acquisition core board 170 determines the second calculation parameter of the chloride ion content value through the silver chloride electrode 140 and the reference electrode 120.

[0058] In some embodiments, optionally, Figure 1 As shown, the conductivity sensor 150 includes a first stainless steel electrode 151 and a second stainless steel electrode 152 connected to each other, and the data acquisition core board 170 determines the conductivity parameter through the first stainless steel electrode 151 and the second stainless steel electrode 152. A first voltage is applied to the first stainless steel electrode 151 and the second stainless steel electrode 152, and the first stainless steel electrode 151 and the second stainless steel electrode 152 determine that the current of the measured water quality is the first current, and the first voltage divided by the first current is the conductivity parameter of the measured water quality.

[0059] In some embodiments, optionally, Figure 1 As shown, the corrosion rate sensor 160 includes a first corrosion test piece 161 and a second corrosion test piece 162 connected to each other, and the data acquisition core board 170 determines the corrosion rate through the first corrosion test piece 161 and the second corrosion test piece 162. The first corrosion test piece 161 and the second corrosion test piece 162 are connected in series in the circuit. The parameters of the first corrosion test piece 161 and the second corrosion test piece 162 before leaving the factory are basically the same. In the corrosion rate sensor 160, the first corrosion test piece 161 is provided with a protective coating and is basically not corroded; the second corrosion test piece 162 has no protective coating and is usually corroded by the environment, and its resistance value will increase after corrosion. After measuring the resistance values ​​of the two corrosion test pieces using the current method, the corrosion rate can be calculated through the time interval.

[0060] In one embodiment of the present invention, the oilfield produced water multi-index online monitoring method is applied to the data acquisition core board 170 of the oilfield produced water multi-index online monitoring device 100 in any of the above embodiments. Figure 2 As shown, the steps of the multi-index online monitoring method for oilfield produced water include:

[0061] S202, determine the pipeline potential through the sealed metal shell and the reference electrode; determine the first calculation parameter of the pH value through the aluminum alloy electrode and the reference electrode; determine the second calculation parameter of the chloride ion content value through the silver chloride electrode and the reference electrode; determine the conductivity parameter through the conductivity sensor; determine the corrosion rate through the corrosion rate sensor. Optionally, the sealed metal shell and the reference electrode constitute a cathodic protection data sensor. The data acquisition core board determines the pipeline potential through the sealed metal shell and the reference electrode. Optionally, the sealed metal shell has a first potential, the reference electrode has a second potential, and the data acquisition core board determines the pipeline potential according to the potential difference between the second potential and the first potential. Optionally, the reference electrode is a high-purity zinc electrode. Optionally, the aluminum alloy electrode and the reference electrode constitute a pH sensor (PH value sensor). The data acquisition core board determines the first calculation parameter of the pH value through the aluminum alloy electrode and the reference electrode. Optionally, the reference electrode has a second potential, the aluminum alloy electrode has a third potential, and the data acquisition core board determines the first calculation parameter of the pH value of the measured water quality according to the potential difference between the second potential and the third potential. Optionally, the silver chloride electrode and the reference electrode form a chloride ion sensor. The data acquisition core board determines the second calculation parameter of the chloride ion content value through the silver chloride electrode and the reference electrode. Optionally, the reference electrode has a second potential, the silver chloride electrode has a fourth potential, and the data acquisition core board determines the second calculation parameter of the chloride ion content value of the measured water quality according to the potential difference between the second potential and the fourth potential. Optionally, the data acquisition core board determines the conductivity parameter through the first stainless steel electrode and the second stainless steel electrode. Optionally, a first voltage is applied to the first stainless steel electrode and the second stainless steel electrode, and the first stainless steel electrode and the second stainless steel electrode determine that the current of the measured water quality is the first current, and the first voltage divided by the first current is the conductivity parameter of the measured water quality. Optionally, the data acquisition core board determines the corrosion rate through the first corrosion test piece and the second corrosion test piece. Optionally, the first corrosion test piece and the second corrosion test piece are connected in series in the circuit. The parameters of the first corrosion test piece and the second corrosion test piece before leaving the factory are basically the same. In the corrosion rate sensor, the first corrosion test piece is provided with a protective coating and is basically not corroded; the second corrosion test piece is not provided with a protective coating and is usually corroded by the environment, and its resistance value will increase after corrosion. The corrosion rate can be calculated by measuring the resistance values ​​of the two corrosion test pieces using the current method and the time interval.

[0062] In one embodiment of the present invention, the electronic device includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the multi-indicator online monitoring method for oilfield produced water in the above-mentioned embodiment are implemented.

[0063] In one embodiment of the present invention, a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for online monitoring of multiple indicators of oilfield produced water in the above embodiment are implemented.

[0064] In one embodiment of the present invention, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the multi-indicator online monitoring method for oilfield produced water in the above embodiment.

[0065] According to the embodiments of the oilfield produced water multi-index online monitoring device, oilfield produced water multi-index online monitoring method, electronic device, computer readable storage medium and chip of the present invention, the oilfield produced water multi-index online monitoring device integrates multiple sensors (cathodic protection data sensor, pH value sensor, chloride ion sensor, conductivity sensor and corrosion rate sensor), and the data acquisition core board can complete the data acquisition of pipeline potential, the first calculation parameter of pH value, the second calculation parameter of chloride ion content value, conductivity parameter and corrosion rate. The oilfield produced water multi-index online monitoring device can monitor the multiple data changes in water quality in real time online, thereby solving the non-real-time and randomness problems of manual monitoring, which is conducive to reducing the labor intensity of staff, improving work efficiency and the accuracy of monitoring data. In addition, the data acquisition core board can transmit the monitored real-time data to the information platform or management system platform to realize the overall management of water quality monitoring data.

[0066] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0068] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oilfield produced water multi-index online monitoring device, characterized in that: include: A sealed metal housing (110); A reference electrode (120) connected to the sealed metal housing (110); an aluminum alloy electrode (130), connected to the reference electrode (120); A silver chloride electrode (140) connected to the reference electrode (120); Conductivity sensor (150); Corrosion rate sensor (160); A data acquisition core board (170) is connected to the sealed metal shell (110), the reference electrode (120), the aluminum alloy electrode (130), the silver chloride electrode (140), the conductivity sensor (150) and the corrosion rate sensor (160); the data acquisition core board (170) determines the pipeline potential through the sealed metal shell (110) and the reference electrode (120); the data acquisition core board (170) determines a first calculation parameter of the pH value through the aluminum alloy electrode (130) and the reference electrode (120); the data acquisition core board (170) determines a second calculation parameter of the chloride ion content value through the silver chloride electrode (140) and the reference electrode (120); the data acquisition core board (170) determines the conductivity parameter through the conductivity sensor (150); and the data acquisition core board (170) determines the corrosion rate through the corrosion rate sensor (160).

2. The oilfield produced water multi-index online monitoring device according to claim 1 is characterized in that: The sealed metal shell (110) has a first potential, the reference electrode (120) has a second potential, and the data acquisition core board (170) determines the pipeline potential according to the potential difference between the second potential and the first potential.

3. The oilfield produced water multi-index online monitoring device according to claim 2 is characterized in that: The aluminum alloy electrode (130) has a third potential, and the data acquisition core board (170) determines the first calculation parameter according to the potential difference between the second potential and the third potential.

4. The oilfield produced water multi-index online monitoring device according to claim 2, characterized in that: The silver chloride electrode (140) has a fourth potential, and the data acquisition core board (170) determines the second calculation parameter according to the potential difference between the second potential and the fourth potential.

5. The multi-index online monitoring device for oilfield produced water according to any one of claims 1 to 4, characterized in that: The conductivity sensor (150) comprises a first stainless steel electrode (151) and a second stainless steel electrode (152) which are connected to each other, and the data acquisition core board (170) determines the conductivity parameter through the first stainless steel electrode (151) and the second stainless steel electrode (152).

6. The multi-index online monitoring device for oilfield produced water according to any one of claims 1 to 4, characterized in that: The corrosion rate sensor (160) comprises a first corrosion test piece (161) and a second corrosion test piece (162) which are connected to each other, and the data acquisition core board (170) determines the corrosion rate through the first corrosion test piece (161) and the second corrosion test piece (162).

7. A multi-index online monitoring method for oilfield produced water, characterized in that: A data acquisition core board applied to a multi-index online monitoring device for oilfield produced water according to any one of claims 1 to 6, wherein the multi-index online monitoring method for oilfield produced water comprises: The pipeline potential is determined by the sealed metal shell and the reference electrode; the first calculation parameter of the pH value is determined by the aluminum alloy electrode and the reference electrode; the second calculation parameter of the chloride ion content value is determined by the silver chloride electrode and the reference electrode; the conductivity parameter is determined by the conductivity sensor; and the corrosion rate is determined by the corrosion rate sensor.

8. An electronic device, characterized in that: It includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the multi-indicator online monitoring method for oilfield produced water as described in claim 7 are implemented.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the multi-indicator online monitoring method for oilfield produced water according to claim 7 are implemented.

10. A chip, characterized in that: The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the multi-indicator online monitoring method for oilfield produced water as described in claim 7.

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