CN113448289A - Oil gas industry internet data processing system based on DMZ - Google Patents
Oil gas industry internet data processing system based on DMZ Download PDFInfo
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Abstract
The invention provides an oil and gas industry internet data processing system based on DMZ, which comprises a plurality of DTU acquisition and transmission units, a DMZ subsystem and an industrial control subsystem, wherein the DTU acquisition and transmission units are used for collecting data signals of a remote well station field of an oil and gas field and carrying out data interaction with the DMZ subsystem through a communication operation network, the DMZ subsystem is deployed in an isolation service area of a communication operator and is communicated with the DTU acquisition and transmission units on one hand and responds to a data acquisition request and a remote control request of an oil and gas field enterprise intranet on the other hand, the industrial control subsystem is deployed in a certain industrial control network of the oil and gas field and is communicated with an office network and the DMZ subsystem through a network gate or a firewall to carry out collection, monitoring and control on all well station data. The system fully considers the network security and the data transmission rate of data processing, and guarantees the information privacy, high speed and industrial control security of remote data acquisition of the oil and gas field.
Description
Technical Field
The invention relates to the technical field of oil and gas field development, in particular to an oil and gas industry internet data processing system based on DMZ.
Background
Oil and gas field enterprises are gradually becoming aware of the importance of communication security when performing information-based construction. Most enterprises strengthen the isolation between the enterprise office network and the industrial control network and between the enterprise network and the internet by deploying measures such as a gatekeeper, a firewall and the like, and strictly control the outlet of the industrial control network server. However, the problems of inadequate supervision, random plugging and unplugging of external equipment, weak remote access authentication and the like exist in the key industrial control server, and the safety of the system is reduced to a certain extent. An isolation area (refined Zone) is established between an oil and gas field enterprise network and a communication operator, so that the safety requirement of part of business of remote data acquisition of the oil and gas field can be fully met, the oil and gas field enterprise network is separated from other networks accessing services, and direct communication between an internal network and an external network is prevented.
Oil And gas field enterprises generally use a Supervisory Control And Data acquisition System (SCADA) System to monitor remote terminal devices with long distribution distances And dispersed production units, And realize Data transmission in a wired or wireless manner. The wired mode generally includes audio cable, carrier cable, optical fiber, etc., and the wireless mode generally includes bluetooth, ZigBee, data radio, GSM short message, GPRS, satellite, etc. When long-distance data transmission is carried out, the GPRS technology becomes a main remote data acquisition and processing scheme when the SCADA system is implemented by virtue of the advantages of high resource utilization rate, sustainable online maintenance, high transmission rate, reasonable charge and the like. However, with the continuous improvement of the requirements on the real-time performance, the density and the mass of data, the mode based on the GPRS communication can not meet the application requirements of oil and gas field enterprises in the aspects of speed, carrying capacity and the like. With the successive 4G/5G era, the application of mature 4G technology for remote data acquisition of oil and gas fields is generally accepted and implemented.
Currently, the following combination mode is generally adopted in the oil and gas field industry for data acquisition of remote well stations. Mode 1: and the field data monitoring unit is used for collecting related sensor data, and the data is uploaded to the inside of the oil and gas field enterprise network by using the GPRS-DTU for application. Mode 2: and the field data monitoring unit is used for collecting related sensor data and transmitting the data to the inside of the oil and gas field enterprise network by using an optical fiber. The method 1 has the problems of low transmission rate, enterprise data exposure, low safety of industrial control equipment and the like, and the scheme 2 has the problems of cost limitation caused by laying optical fibers, erecting wireless bridges and the like, and the cost is too high.
Therefore, a new oil and gas industry internet data processing system based on DMZ is invented, and the technical problems are solved.
Disclosure of Invention
The invention aims to provide a DMZ-based oil and gas industry internet data processing system which can meet the data acquisition and processing application requirements of wide resource distribution of oil and gas fields and severe field mining monitoring environment.
The object of the invention can be achieved by the following technical measures: the oil and gas industry internet data processing system based on the DMZ comprises a plurality of DTU acquisition and transmission units, a DMZ subsystem and an industrial control subsystem, wherein the DTU acquisition and transmission units are installed on the site of a remote well station of an oil and gas field, collect data signals on the site of the remote well station of the oil and gas field, and perform data interaction with the DMZ subsystem through a communication operation network, the DMZ subsystem is deployed in an isolation service area of a communication operator and is in communication with the DTU acquisition and transmission units on the one hand, and responds to a data acquisition request and a remote control request of an inner network of an oil and gas field enterprise on the other hand, and the industrial control subsystem is deployed in a certain industrial control network of the oil and gas field and is in communication with an office network and the DMZ subsystem through a network gate or a firewall to perform collection, monitoring and control of all well station data.
The object of the invention can also be achieved by the following technical measures:
the DTU acquisition and transmission unit comprises a 4G-DTU module, an RTU module and a plurality of sensors, the sensors acquire well site data and transmit the acquired well site data to the RTU module, the RTU module is connected to the sensors and stores the received well site data and transmits the well site data to the 4G-DTU module, the 4G-DTU module is connected to the RTU module, a network card is configured, data transmission is performed by utilizing a communication operator network so as to transmit bidirectional information from the DMZ subsystem and the RTU module, the DMZ subsystem is connected to the 4G-DTU modules and transmits communication protocol control command data streams as required, and the command data streams are transmitted to the RTU module through the 4G-DTU module so as to respond to control.
The plurality of sensors includes: the device comprises a temperature sensor, a pressure sensor, a multifunctional ammeter, a frequency converter, a load sensor, a displacement sensor, a liquid level measuring instrument, a gas concentration detector and a flowmeter.
The industrial control subsystem comprises a first relational database, a first configuration client module, a first acquisition service module, a first real-time database and a monitoring client, wherein the first configuration client module is connected to the first relational database and used for inputting the structural configuration data of the industrial control subsystem and transmitting the structural configuration data to the first relational database, the first relational database is used for storing the structural configuration data of the industrial control subsystem and the historical data of the operating parameters of the oil-gas field well station and is connected to the first acquisition service module, the first acquisition service module is connected to the first real-time database and performs data interaction with an acquisition unit and the DMZ subsystem outside the industrial control subsystem and transmits the latest data to the first real-time database, and writes the historical data into the first relational database according to set intervals, the first real-time database is connected to the monitoring client and stores the latest record of all the acquisition parameters in the industrial control subsystem, and responding to data acquisition requests of other modules of the industrial control subsystem, wherein the monitoring client is connected to the first relational database, acquires well station structural configuration data from the first relational database, acquires latest data of relevant parameters from the first real-time database to perform oil well monitoring, sends a remote control request to the first acquisition service module, transmits the remote control request to the acquisition unit or the DMZ subsystem outside the industrial control subsystem through the first acquisition service module, is installed in a control cabinet of an oil-gas field production field, transmits data to the industrial control subsystem through a certain industrial control network, and acquires data such as temperature, pressure, electric parameters, indicator diagrams, flow and liquid level.
The industrial control subsystem also comprises a dump service module which is connected with the first relational library and the first real-time library, obtains information of dump objects, dump variables and dump target addresses from the first relational library, extracts the latest data of relevant parameters from the first real-time library and dumps the latest data into a target system or an interface.
The industrial control subsystem also comprises a Web configuration service module, wherein the Web configuration service module is connected with the first relational library, acquires configuration variable configuration information and a configuration diagram from the first relational library and issues the configuration variable configuration information and the configuration diagram to a third-party system for use.
The DMZ subsystem comprises a second relational database, a second configuration client, a second acquisition service module and a second real-time database, wherein the second configuration client is connected with the second relational database and used for inputting the structural configuration data of the DMZ subsystem and transmitting the structural configuration data to the second relational database, the second relational database is used for storing the structural configuration data of the DMZ subsystem and the historical data of well station operation and is connected with the second acquisition service module, the second acquisition service module is connected with the second real-time database and performs data interaction with the DTU acquisition and transmission units and transmits the latest data to the second real-time database, meanwhile, the historical data is written into the second relational database according to a set interval, a remote control request sent by the industrial control subsystem is responded, the remote control request is transmitted to the DTU acquisition and transmission units, and the second real-time database is connected with the second acquisition service module, and storing the latest record of all the acquisition parameters in the DMZ subsystem, and responding to the data acquisition request of the industrial control subsystem.
The invention discloses a DMZ-based oil and gas industry internet data processing system, which fully considers the network security and the data transmission rate of data processing in a design architecture and ensures the information privacy, high speed and industrial control security of remote data acquisition of an oil and gas field.
Compared with the prior art, the invention can improve the information privacy of remote data acquisition and the safety of industrial control for the oil-gas field in 3 layers. (1) DTU sampling and transmitting unit: through the transparent transmission 4G module, a field terminal data acquisition strategy which is convenient to implement, high in compatibility and strong in expansibility is provided for the oil-gas field. (2) DMZ subsystem: the method cooperates with a communication operator and purchases a private network, so that the safety and the high speed of a channel are fully guaranteed. Meanwhile, as a media subsystem, the system prevents the internal system of the oil and gas field from directly communicating with the DTU acquisition and transmission unit, and provides the safety of data acquisition and remote control. (3) An industrial control subsystem: the system is responsible for data collection in an oil and gas field industrial control network and a DMZ subsystem, and simultaneously executes efficient and safe data acquisition, configuration release, data dump, alarm push and monitoring control.
According to the oil and gas industry internet data processing system based on the DMZ, on one hand, data interaction is carried out between a 4G-APN private network of a communication operator and a system in a DMZ area, and the high speed and isolation of communication are guaranteed. On the other hand, the DMZ system is used for communicating with other systems of the self-built network in the oil and gas field enterprise, so that the application safety is ensured. And finally, realizing common applications of the oil and gas field, such as data monitoring, alarm monitoring, data dump, configuration release and the like in the industrial control network. A new thought and method are provided for a data transmission and processing framework of an oil and gas field through the comprehensive integration of a sensor, an RTU (Remote Terminal Unit), a DTU (data transfer Unit), an SCADA (supervisory control and data acquisition) system and an application management system.
Drawings
FIG. 1 is a block diagram of one embodiment of a DMZ-based oil and gas industry Internet data processing system of the present invention;
fig. 2 is a schematic structural diagram of a DTU acquisition and transmission unit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an industrial control subsystem in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a DMZ subsystem according to an embodiment of the invention.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
As shown in fig. 1, fig. 1 is a block diagram of a DMZ-based oil and gas industry internet data processing system according to the present invention. The oil and gas industry internet data processing system based on the DMZ comprises a plurality of remote acquisition and transmission units (DTU acquisition and transmission units 1-n for short), a data processing subsystem (DMZ subsystem 20 for short) deployed in a safe isolation area and a data processing subsystem (industrial control subsystem 30 for short) deployed in an industrial control network, wherein the DTU acquisition and transmission units are installed on site.
The DTU acquisition and transmission units 1-n are responsible for collecting data signals of remote well stations of oil and gas fields on site and realizing data interaction with the DMZ subsystem 20 through a 4G-APN network of a communication operator. The DMZ subsystem 20 is deployed in an isolated service area of a communication carrier, and is a communication architecture mode with information security. The system is in charge of communicating with a plurality of DTU acquisition and transmission units 1-n on site on one hand and responding to data requests and control command requirements of an internal network of an oil and gas field enterprise on the other hand. The industrial control subsystem 30 is deployed in an industrial control network of an oil and gas field, and communicates with the office network and the DMZ subsystem 20 through a network gate (or a firewall) for collecting, monitoring and controlling data of all well stations within the coverage range of the system.
In one embodiment, the DTU acquisition and transmission unit is shown in fig. 2 and includes a 4G-DTU module 21, an RTU module 22, and various sensor meters.
Specifically, the field sensors typically include a temperature sensor 23, a pressure sensor 24, a level meter 25, a multifunctional electric meter 26, a frequency converter device 27, a load cell, a displacement sensor, a gas concentration detector, a flow meter, and the like. For well site data acquisition, considering requirements of sensor power supply, installation complexity, continuous production monitoring and the like, an oil well control cabinet is usually erected near a well site, and equipment such as a 4G-DTU module 21, an RTU module 22, a multifunctional electric meter 26, a frequency converter equipment 27 and the like are arranged in the oil well control cabinet. The multifunctional electric meter 26 and the frequency converter device 27 adopt a power supply mode, are communicated with the RTU module 22 through an RS485 interface, and the temperature sensors 23, the pressure sensors 24, the displacement sensors and the load sensors adopt high-efficiency lithium batteries for power supply, are provided with a data calling period (rest time dormancy), and are communicated with the RTU module through a ZigBee wireless interface.
In one embodiment, in a well site of the oil pumping unit, return pressure and casing pressure of a wellhead of the oil well are mainly collected through a pressure sensor, oil temperature of the wellhead is collected through a temperature sensor, indicator diagram data of the oil pumping unit are collected through a load sensor and a displacement sensor, and data such as current, voltage and electric energy are collected through a multifunctional electric meter. Pressure sensors are mainly used in various station storehouses to collect manifold pressure, temperature sensors to collect manifold temperature, flow meters to collect data of outgoing or incoming flow, etc. The various sensors communicate with the RTU module in a wired or wireless manner, and there is usually no connection between the sensors.
Specifically, the RTU module 22 is used for data acquisition, storage, control and remote communication at the production site. In the upstream aspect, 1-way Ethernet port and 1-way RS232 are supported. In the downlink aspect, 3 paths of RS485, 1 path of ZigBee, 5 paths of DC4-20mA analog quantity input, 12 paths of switching value light isolation input and 10 paths of relay control output are supported. In application, sensor data is collected through a related downlink communication interface, and the data is transmitted to the 4G-DTU module through the RS232 interface.
Specifically, the 4G-DTU module 21 is responsible for transmitting the bidirectional information from the DMZ subsystem 20 and the RTU module 22. The 4G-DTU module 21 needs to configure an APN specific network card and perform data transmission using the 4G-APN network of the communications carrier. In terms of the device interface, RS232 is supported to pass messages through with the RTU module. In other aspects, fixed IP, transparent data transmission and protocol conversion, and industrial grade 4G wireless communication functions are supported.
In an embodiment, the industrial control subsystem is shown in fig. 3, and includes a first relational library 31, a first configuration client module 32, a first collection service module 33, a first real-time library 34, a dump service module 35, a Web configuration service module 36, and a monitoring client 37.
Specifically, the first relational database 31 is used to store configuration data and history data (including a data acquisition and transmission unit and a DTU data acquisition and transmission unit) of the system, and a stable and common commercial database, such as Oracle, MySql, and the like, is generally used. The configuration class data stored in the first relational database 31 is acquired by a system user according to the configuration input required by field automatic acquisition. The history data stored in the first relational database 31 is written by the acquisition service according to the storage period of the corresponding data packet. Meanwhile, the first relational database 31 provides a corresponding configuration relational structure for the Web configuration service, the dump service and the monitoring client for analysis and use.
Specifically, the first configuration client module 32 is only in communication with the first relational database 31 and is responsible for entering the structured information of the industrial control subsystem. The method mainly comprises the following steps: the method comprises the functions of node configuration, IP and port configuration, variable template configuration, frame template configuration, configuration drawing of a configuration diagram, dump task configuration, historical data storage interval configuration, project engineering backup and restoration configuration and the like. When a user wants to add a new acquisition object, the user needs to perform related automatic configuration by using the configuration client first, and then can perform other related applications.
Specifically, the first collection service module 33 is a core data interaction and response module of the subsystem. The main functions are as follows: and the function 1 is responsible for finishing data interaction with the acquisition and transmission unit and the DMZ subsystem real-time library. And the function 2 is responsible for writing the latest data into the real-time library inside the subsystem, and simultaneously writing historical data records into the relational library at set intervals. And the function 3 is responsible for responding to a remote control request sent by the monitoring client and sending the request to the acquisition service of the acquisition and transmission unit or the DMZ subsystem according to a related communication protocol.
In one embodiment, the acquisition and transmission unit is installed in a control cabinet of an oil and gas field production field, and transmits data to the industrial control subsystem by using a certain industrial control network, wherein the acquisition and transmission unit comprises a sensor unit and an RTU module and is used for acquiring data such as temperature, pressure, electric parameters, indicator diagrams, flow, liquid level and the like.
Specifically, the first real-time library 34 uses a high-performance key-value database redis as a kernel, and is configured to store a latest record of all acquisition parameters in the system and to respond to data acquisition requests of other modules in the subsystem.
Specifically, the dump service module 35 obtains information such as a dump object, a dump variable, and a dump target address from the first relational database 31, and extracts the latest data of the relevant parameters from the first real-time library 34 to dump into the target system or interface. And transmission modes such as socket, database sharing, Webservice and the like are supported.
Specifically, the Web configuration service module 36 obtains configuration variable configuration information and a configuration diagram from the relational database, extracts the latest data of the relevant parameters from the first real-time database 34, and issues the latest data to the third-party system for use through tomcat.
In particular, the monitoring client 37 obtains well site structured configuration data from the relational database and obtains up-to-date data for relevant parameters from the first real-time database 34. The functions of the monitoring client 37 include: the system comprises an oil well monitoring list, a single well monitoring page, oil well remote start-stop and frequency adjustment, gathering and transportation navigation, water injection navigation, combined station configuration monitoring, water injection station configuration monitoring, transfer station configuration monitoring, configuration page historical data viewing, real-time alarm viewing and handling, historical alarm viewing, alarm threshold value and enabling setting, shift management, user account management and the like.
In one embodiment, the DMZ subsystem, as shown in fig. 4, includes a second relational library 41, a second configuration client 42, a second acquisition service module 43, and a second real-time library 44.
Specifically, the second relational database 41 is used to store configuration data and history data of the DMZ subsystem (only including the DTU acquisition and transmission unit), and the rest of functions are not described again. Specifically, the second configuration client 42 only communicates with the second relational database 41 and is responsible for providing structured analysis data for the acquisition service (only the DTU needs to be configured to acquire relevant content of the transmission unit), and the rest functions are not described again.
Specifically, the second collection service module 43 is a core data interaction and response module of the DMZ subsystem. The main functions are as follows: function 1 is responsible for completing data interaction with the DTU acquisition and transmission unit. And the function 2 is responsible for writing the latest data into the real-time library inside the subsystem, and simultaneously writing historical data records into the relational library at set intervals. And the function 3 is responsible for responding to a remote control request sent by the industrial control subsystem acquisition service and sending the request to the DTU acquisition and transmission unit according to a related communication protocol.
Specifically, the second real-time library 44 is responsible for responding to a data acquisition request of the industrial control subsystem acquisition service, and the rest of functions are not described in detail.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the described form, nor is it to be construed as excluding other embodiments. But is capable of other combinations, environments, and modifications, which may occur to persons skilled in the art and to which the invention pertains, and which may be practiced with modification within the scope of the appended claims. Variations or changes in combination which may be made by those skilled in the art without departing from the scope and spirit of the invention are intended to be within the scope of the invention.
Claims (7)
1. The oil and gas industry internet data processing system based on DMZ is characterized by comprising a plurality of DTU acquisition and transmission units, a DMZ subsystem and an industrial control subsystem, the DTU acquisition and transmission units are arranged on the site of the oil and gas field remote well station, collect data signals of the site of the oil and gas field remote well station and perform data interaction with the DMZ subsystem through a communication operation network, the DMZ subsystem is deployed in an isolation service area of a communication operator, on one hand, the DMZ subsystem is communicated with the DTU acquisition and transmission units, on the other hand, the DMZ subsystem responds to a data acquisition request and a remote control request of an oil and gas field enterprise intranet, the industrial control subsystem is deployed in an industrial control network of an oil and gas field, and is communicated with an office network and the DMZ subsystem through a network brake or a firewall to collect, monitor and control data of all well stations.
2. The DMZ based oil and gas industry Internet data processing system of claim 1, it is characterized in that the DTU acquisition and transmission unit comprises a 4G-DTU module, an RTU module and a plurality of sensors, the sensors collect well site data and transmit the collected well site data to the RTU module, the RTU module is connected with the sensors, stores the received well site data and transmits the well site data to the 4G-DTU module, the 4G-DTU module is connected with the RTU module, is provided with a network card, utilizes a communication operator network to carry out data transmission so as to transmit the two-way information from the DMZ subsystem and the RTU module, the DMZ subsystem is connected with a plurality of 4G-DTU modules and transmits communication protocol control command data streams as required, the command data stream is transmitted to the RTU module through the 4G-DTU module so as to respond to control.
3. The DMZ-based oil and gas industry internet data processing system of claim 2, wherein the plurality of sensors includes: the device comprises a temperature sensor, a pressure sensor, a multifunctional ammeter, a frequency converter, a load sensor, a displacement sensor, a liquid level measuring instrument, a gas concentration detector and a flowmeter.
4. The DMZ-based oil and gas industry Internet data processing system of claim 1, wherein the industrial control subsystem comprises a first relational database, a first configuration client module, a first acquisition service module, a first real-time database and a monitoring client, the first configuration client module is connected to the first relational database for entering the structural configuration data of the industrial control subsystem and transmitting the structural configuration data to the first relational database, the first relational database is used for storing the structural configuration data of the industrial control subsystem and historical data of well station operation parameters of oil and gas fields and is connected to the first acquisition service module, the first acquisition service module is connected to the first real-time database, performs data interaction with an acquisition unit and the DMZ subsystem outside the industrial control subsystem and transmits the latest data to the first real-time database, and writes the historical data into the first relational database at set intervals, the first real-time library is connected with the monitoring client, stores the latest record of all the acquisition parameters in the industrial control subsystem, responds to data acquisition requests of other modules of the industrial control subsystem, the monitoring client is connected with the first relational database, obtains well station structural configuration data from the first relational database, obtains the latest data of relevant parameters from the first real-time database, so as to monitor the oil well, send the remote control request to the first acquisition service module, transmit the remote control request to the acquisition unit or the DMZ subsystem outside the industrial control subsystem by the first acquisition service module, the acquisition and transmission unit is arranged in a control cabinet of an oil and gas field production field, data are transmitted to the industrial control subsystem by utilizing a certain industrial control network, and the acquisition and transmission unit acquires data of temperature, pressure, electric parameters, indicator diagrams, flow and liquid level.
5. The DMZ-based oil and gas industry Internet data processing system of claim 4, wherein the industrial control subsystem further comprises a dump service module, the dump service module is connected to the first relational database and the first real-time database, obtains information of dump objects, dump variables and dump target addresses from the first relational database, extracts the latest data of relevant parameters from the first real-time database, and dumps the latest data into a target system or an interface.
6. The DMZ-based oil and gas industry Internet data processing system of claim 4, wherein the industrial control subsystem further comprises a Web configuration service module, the Web configuration service module is connected to the first relational database, and configuration variable configuration information and configuration diagrams are obtained from the first relational database and are issued to a third-party system for use.
7. The DMZ-based oil and gas industry Internet data processing system of claim 1, wherein the DMZ subsystem comprises a second relational database, a second configuration client, a second acquisition service module and a second real-time database, the second configuration client is connected to the second relational database for entering the structural configuration data of the DMZ subsystem and transmitting the structural configuration data to the second relational database, the second relational database is used for storing the structural configuration data of the DMZ subsystem and the historical data of well station operation and is connected to the second acquisition service module, the second acquisition service module is connected to the second real-time database, performs data interaction with the DTU acquisition units, transmits the latest data to the second real-time database, writes the historical data into the second relational database at set intervals, and responds to a remote control request sent by the industrial control subsystem, and the remote control request is transmitted to the DTU acquisition and transmission units, the second real-time library is connected to the second acquisition service module, stores the latest record of all acquisition parameters in the DMZ subsystem, and responds to the data acquisition request of the industrial control subsystem.
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