CN210178341U - Intelligent shale gas single-well skid-mounted system based on WIA-PA technology - Google Patents
Intelligent shale gas single-well skid-mounted system based on WIA-PA technology Download PDFInfo
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Abstract
The utility model discloses an intelligent shale gas single well skid-mounted system based on WIA-PA technology, which comprises a field instrument, a wireless gateway, a firewall, a well station control PLC and a remote controller; the field instrument is respectively connected with the wireless gateway and the well station control PLC, the wireless gateway is connected with the well station control PLC through a firewall, and the well station control PLC is connected with the remote controller through an industrial Ethernet. On the premise of meeting the requirement of gas field safety production, the industrial wireless WIA-PA technology is popularized and used in skid-mounted equipment monitoring and low-frequency control application scenes to complete real-time acquisition and control of parameters of a skid-mounted equipment production process, and a traditional 4-20 milliampere signal is still adopted in a safety system to be accessed into a control system through a cable hard wire, so that wireless, unmanned and intelligent skid-mounted equipment control is realized.
Description
Technical Field
The utility model belongs to the technical field of sled dress ization equipment, concretely relates to intelligence shale gas individual well sled dress system based on WIA-PA technique.
Background
The shale gas single well standard process is divided into 6 modules such as a well mouth installation module, a high-pressure desanding module, a single well separation metering module, an outbound valve bank module, a sewage tank module and an emptying vertical pipe module, and skid-mounted modules are adopted for improving the design efficiency, the purchase efficiency and the construction efficiency. The skid-mounted equipment is configured with an intelligent wired instrument, and a monitoring and control system is configured according to different technological production processing requirements of the skid-mounted equipment, so that the real-time acquisition and control of parameters in the production process of the skid-mounted equipment are realized.
The industrial wireless transmission technology is a novel wireless communication technology with short-distance interaction, which is extended to the field of industrial data acquisition and acquires process data which cannot be acquired by a wired mode or can be acquired by house charge or acquires process parameters with lower investment and more economy. The WIA-PA standard is a WIA (wireless Networks for Industrial automation) sub-standard which is set by the wireless alliance in china first aiming at the urgent need in the field of process automation, and defines the WIA system structure and communication specification for process automation. The WIA-PA network is an industrial wireless network specification with proprietary intellectual property rights in China, the standard passes the vote of the IEC all member countries of the International electrotechnical Commission in 10 and 31 months in 2008, and the standard is officially released as a standard file of the public available specification IEC/PAS 62601, and the national standard is formed.
Each pry of the shale gas single well at the present stage is designed in an unattended mode, a wired intelligent detection instrument and a prying control system are configured according to different technological production processing requirements of prying equipment, the intelligent instrument adopts 4-20 mA analog signals or RS232 serial communication, and technological process control parameters are collected to the control system through instrument cables. Because the field environment is often severe, the space in the prying machine is limited, the process pipeline is provided with an instrument threading pipe, the engineering wiring is difficult, the workload is large, and the prying machine is messy; the maintenance cost is high, most system faults are caused by damage of cables or connecting devices of the cables, and the following technical problems exist in the project implementation process:
1) based on the urgent need of guaranteeing national energy safety, shale gas well stations need to compress the production construction period as much as possible and put into operation as soon as possible, but are limited by the inherent defects of the traditional wired instrument system, and a large amount of precious time needs to be consumed to establish the wired instrument system.
2) The use of wired instrumentation requires high post-maintenance and repair costs.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough among the prior art, the utility model provides an intelligence rock page or leaf gas individual well sled dress system based on WIA-PA technique has solved the problem that current wired rock page or leaf gas individual well wired instrument sled dress system installation consumption time is long, later maintenance cost is high.
In order to achieve the purpose of the invention, the utility model adopts the technical scheme that: an intelligent rock-gas single-well skid-mounted system based on WIA-PA technology comprises an on-site instrument, a wireless gateway, a firewall, a well station control PLC and a remote controller;
the field instrument is respectively connected with the wireless gateway and the well station control PLC, the wireless gateway is connected with the well station control PLC through a firewall, and the well station control PLC is connected with the remote controller through an industrial Ethernet.
Furthermore, the field instruments comprise field instruments in a single-well separation metering group pry, field instruments in an outbound valve group pry, field instruments in a single-well high-pressure sand removal group pry and field instruments in a wellhead process group pry;
the in-situ instrument in the single-well separation metering group prying comprises a WIA-PA wireless magnetostrictive liquid level transmitter, a WIA-PA wireless combustible gas detector, a differential pressure flow transmitter, a temperature transmitter, a pneumatic cut-off valve, a pneumatic regulating valve and a precession vortex flowmeter;
the on-site instrument in the outbound valve bank prying device comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter and a pneumatic cut-off valve;
the in-situ instrument in the single-well high-pressure sand removal group prying comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter, a WIA-PA wireless magnetostrictive liquid level transmitter and a wireless WIA-PA wireless temperature transmitter;
the on-site instrument in the wellhead process group prying comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter, a wireless WIA-PA wireless temperature transmitter and a pneumatic cut-off valve.
Furthermore, the differential pressure flow transmitter, the temperature transmitter, the pneumatic cut-off valve, the pneumatic regulating valve and the precession vortex flowmeter are all connected with a well station control PLC through wired cables;
the WIA-PA wireless magnetostrictive liquid level transmitter, the WIA-PA wireless combustible gas detector, the wireless WIA-PA wireless pressure transmitter and the WIA-PA wireless temperature transmitter are directly connected with the wireless gateway;
and the pneumatic stop valve, the pneumatic regulating valve and the precession vortex flowmeter are connected with the wireless gateway through a WIA-PA wireless I/O adapter.
Further, the wireless gateway is a wireless gateway with a protection level of IP 65;
the wireless gateway is also connected with the power supply module through a twisted pair.
Further, the power supply module is a POE-MH module.
Further, the firewall is an industrial-grade firewall.
Further, the well station control PLC is also connected with a UPS power supply.
Further, the well station control PLC is also connected with the switchboard through an industrial Ethernet.
Further, the remote controller is a PC.
The utility model has the advantages that: the utility model discloses outside to handling the interlocked instrument of safety on the single well sled dress equipment, wireless transmission technology is taken to intelligent instrument data, utilize low cost that industry wireless network WIA technique has, characteristics such as low-power consumption and short-range communication, realize each equipment of dispersion, intercommunication and network deployment between the instrument, utilize the network to accomplish the collection and the summary back of monitoring data, rethread high bandwidth and powerful long-range wireless communication equipment data transfer to total surveillance center, realize the all-round monitoring to the sled, wiring and running cost have been saved by a wide margin and real-time data information is monitored effectively, the safety in gas field has been guaranteed. The application of wireless technology on sled dress equipment for arranging in the sled dress device becomes more succinctly smooth, owing to reduced laying of measuring equipment pipelines such as unwrapping wire, protection tube, junction box, makes whole sled dress equipment production cycle shorten, simultaneously according to shale gas field development characteristics, the quick installation and the dismantlement of sled dress ization equipment can be realized to intelligent instrument data wireless transmission technology, and nimble combination can adapt to shale gas output and change. Particularly, in the later stage of production and development, development of the encrypted well needs to be added, and under the condition that large-area construction and excavation are inconvenient when the encrypted well is put into operation in a station, the application of the intelligent instrument data wireless transmission technology to skid-mounted equipment improves the convenience of installation and expansion of the intelligent instrument, can shorten the construction period of ground engineering, and improves the development efficiency of a gas field.
Drawings
Fig. 1 is the utility model discloses in intelligent rock page or leaf gas individual well sled dress system structure picture based on WIA-PA technique.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.
As shown in fig. 1, an intelligent rock-gas single-well skid-mounted system based on the WIA-PA technology comprises a field instrument, a wireless gateway, a firewall, a well station control PLC and a remote controller;
the field instrument is respectively connected with the wireless gateway and the well station control PLC, the wireless gateway is connected with the well station control PLC through the firewall, and the well station control PLC is connected with the remote controller through the industrial Ethernet.
The field instruments comprise field instruments in a single-well separation metering group pry, field instruments in an outbound valve group pry, field instruments in a single-well high-pressure sand removal group pry and field instruments in a wellhead process group pry;
the in-situ instrument in the single-well separation metering group prying comprises a WIA-PA wireless magnetostrictive liquid level transmitter, a WIA-PA wireless combustible gas detector, a differential pressure flow transmitter, a temperature transmitter, a pneumatic cut-off valve, a pneumatic regulating valve and a precession vortex flowmeter;
the field instrument in the outbound valve bank prying device comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter and a pneumatic cut-off valve;
the in-situ instrument in the single-well high-pressure sand removal group prying comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter, a WIA-PA wireless magnetostrictive liquid level transmitter and a wireless WIA-PA wireless temperature transmitter;
the field instrument in the wellhead process group prying comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter, a wireless WIA-PA wireless temperature transmitter and a pneumatic cut-off valve.
When the field instruments are connected, according to the parameter standard set for a wireless network by the process industry and the importance of corresponding information transmission speed, the condition of different types of skid-mounted equipment of a single well station is combined, the orifice plate flowmeter and the temperature and pressure transmitter which are used for measurement are separated and measured, the safety and the stability of data transmission are considered, a wired transmission mode is adopted to enter a built-in measurement module of a process control system PLC, temperature and pressure compensation calculation is carried out, and the data of the intelligent instruments except the functions are transmitted in a wireless mode.
The system comprises a differential pressure flow transmitter, a temperature transmitter, a pneumatic cut-off valve, a pneumatic regulating valve and a precession vortex flowmeter, wherein the differential pressure flow transmitter, the temperature transmitter, the pneumatic cut-off valve, the pneumatic regulating valve and the precession vortex flowmeter are all connected with a well station control PLC through wired cables;
the WIA-PA wireless magnetostrictive liquid level transmitter, the WIA-PA wireless combustible gas detector, the wireless WIA-PA wireless pressure transmitter and the WIA-PA wireless temperature transmitter are directly connected with the wireless gateway;
and the pneumatic cut-off valve, the pneumatic regulating valve and the precession vortex flowmeter are connected with the wireless gateway through a WIA-PA wireless I/O adapter.
It should be noted that the differential pressure flow transmitter and the temperature transmitter belong to local indicating instruments and do not need to be connected with a wireless gateway.
The meters form a field data acquisition subsystem which is connected with a wireless gateway directly or through a WIA-PA wireless O/A adapter and transmits periodically acquired data to the wireless gateway through radio waves. The WIA wireless I/O adapter is developed by adopting an embedded Linux real-time operating system, and one wireless IO or adapter can be connected with 8-16 instruments.
The main function of the wireless gateway is to manage and maintain the whole data acquisition subsystem, and provide system analysis, diagnosis and real-time data transmission for users. The wireless gateway is a short-range wireless communication device integrated with an industrial wireless network core protocol, needs an external power supply for power supply, works in a global free 2.4GHz frequency band based on an industrial standard 802.15.4, and can reach a maximum distance of 1000 meters under the condition of no repeater. The wireless gateway is responsible for managing, scheduling and optimizing the whole network, setting and maintaining network communication parameters, uniformly distributing communication resources and routes for network equipment, configuring the operation of the network, scheduling the communication among the network equipment, monitoring and reporting the operation state of the network. The wireless gateway also serves as a time synchronization source of the whole network and balances network load, provides message buffering and storage, bridges all network equipment, and has a very important function and is the core of the whole wireless network. The WIA wireless gateway supports one or more network access points and service access points. The network access point provides interfaces for connecting other networks, such as a factory automation network, and provides a plurality of connection modes such as a serial port and an Ethernet, and the service access point provides interfaces for accessing and managing the network for the upper computer application.
The utility model provides a wireless gateway adopts 32 high performance ARM9 processors, runs the embedded real-time operating system of Linux, and outer abundant storage resource and external interface of expanding support Modbus TCP communication protocol and customization agreement. In consideration of the field environment, an explosion-proof wireless gateway with the protection level of IP65 is adopted. The data transmission rate of the wireless gateway is 250kbps, and one wireless gateway can support up to 40 wireless instruments or wireless IO modules in a downlink manner, so that the data acquisition requirement of the field instruments is completely met. In order to improve the safety of equipment and facilitate the installation of a wireless gateway, the latest POE technology is adopted in the aspect of gateway power supply, and through a POE-MH module, redundant twisted-pair wires are used for transmitting direct current voltage to supply to the gateway without additionally accessing 220V alternating current. Meanwhile, the POE-MH module also has a lightning protection function, and can ensure that network equipment is prevented from being damaged by overvoltage and overcurrent caused by lightning, industrial interference and the like.
In order to improve the safety of a production private network, an industrial firewall is additionally arranged between a field data acquisition subsystem and a well station control PLC, the firewall adopts an industrial firewall, the industrial firewall which is independently researched and developed by Shenyang automation is adopted as the firewall, and the firewall is an industrial firewall facing the field of industrial control. According to the safety principle of depth defense, the data communication pipeline between different areas is established by dividing the safety area of the industrial control system, the pipeline data is comprehensively analyzed and controlled, the data packet can be deeply inspected, and the method is mainly embodied in that: firstly, only allowing an OPC standard format DCE/RPC access request; secondly, only allowing communication between a specific client and the server; thirdly, only allowing the client to use the appointed port for communication; and fourthly, only allowing the TCP communication to occur in a specific OPC connection time.
The utility model discloses in for functions such as completion system monitoring, alarm record, state trend analysis, database management, system management, network management, data upload. The well station control PLC belongs to important well station production facilities, the classification of the power load of the well station control PLC needs to be divided into loads which are particularly important in primary loads according to the national unified standard, in order to meet the requirements of the power load of the well station control PLC, the safety of the system is improved, and the system can still continuously and normally work after the interruption of the mains supply power, the utility model provides a well station control PLC is connected with a UPS power supply, and the continuous power supply time is longer than 30 minutes; in addition, the station control PLC is also connected with a switch through an industrial Ethernet, the switch is used for establishing a process control local area network, and the industrial Ethernet switch is adopted.
The remote controller is a PC and is used for sending instructions to the well station control PLC and enabling the controller to work.
In addition, the well station control PLC is also connected with a data viewing terminal, the data viewing terminal comprises a smart phone and other equipment capable of receiving data sent by the smart phone, and a user can remotely view real-time monitoring information and perform real-time monitoring on the production process.
The utility model provides a well station accuse PLC main computer network system, process control unit, operator workstation, data communication interface and system software etc. constitute. The process control unit usually adopts a Programmable Logic Controller (PLC), which has high reliability and is adapted to the field environment, and all the templates selected by the PLC are hot-pluggable templates, and each template has a self-diagnostic function. The method mainly comprises the following steps: processor modules, redundant power supplies, redundant communication modules, I/O modules (analog input module, analog output module, switching value input module, switching value output module), installation accessories (PLC cabinets, wiring), and the like. The utility model discloses plan in the needs of considering actual need and later stage system expansion, choose for use SIMATIC S7-1200 small-size programmable controller (or the PLC RTU system of other models of equal configuration) of Siemens company production, this system has characteristics such as integrated PROFINET interface, powerful integrated technology function and nimble scalability, provides simple communication and effectual solution for various process tasks, especially satisfies the different automation demand completely in the multiple application. The PLC system is used as a well station control system to complete the functions of management, scheduling, centralized operation, monitoring, system function configuration, automatic logic control, data alarming, online modification and setting of control parameters, recording, generating an alarm information report, printing and the like of a whole station. The station control PLC is integrally installed in a metal cabinet, the cabinet can be selectively arranged in an outdoor well station process area or in a station room control room according to the actual arrangement condition of a well station, and the cabinet arranged in the open air adopts an appropriate explosion-proof and protection product selected according to the environment. The real-time running state of the main technological process of the total station and the trend picture of each technological parameter can be directly monitored by the monitoring computer of the operating station of the station control system, so that the operator can master the running condition of the total station in time; the station control PLC sets 1 touch screen at the front door of the cabinet or independently according to the operation requirement of the well station, so that the requirements of field operation and monitoring are met.
In an embodiment of the present invention, a working process of the system is provided: the system comprises a bottom field data acquisition subsystem, a wireless gateway, a well station control PLC, a GPRS wireless terminal and a data viewing terminal, wherein the bottom field data acquisition subsystem acquires real-time data and transmits the real-time data to the wireless gateway through radio waves, the whole WIA network is maintained and configured through the wireless gateway, data information of an acquisition instrument is collected and transmitted to the well station control PLC, the well station control PLC can receive and process instructions sent by a remote controller through the GPRS wireless terminal arranged in the well station control PLC, the data in the field data acquisition subsystem can be transmitted to the data viewing terminal through a GPRS wireless network, and a user can view real-time monitoring information and perform real-time monitoring on.
The utility model discloses in, outside the instrument to handling safety chain on the single well sled dress ization equipment, wireless transmission technology is taken to intelligent instrument data, utilize low cost that industry wireless network WIA technique has, characteristics such as low-power consumption and short-range communication, realize each equipment of dispersion, intercommunication and network deployment between the instrument, utilize the network to accomplish the collection and the summary back of monitoring data, rethread high bandwidth and powerful long-range wireless communication equipment are data transfer to total supervisory control center, realize the all-round monitoring to the sled, wiring and running cost have been saved by a wide margin and real-time data information is monitored effectively, the safety in production of gas field has been guaranteed. The application of wireless technology on sled dress equipment for arranging in the sled dress device becomes more succinctly smooth, owing to reduced laying of measuring equipment pipelines such as unwrapping wire, protection tube, junction box, makes whole sled dress equipment production cycle shorten, simultaneously according to shale gas field development characteristics, the quick installation and the dismantlement of sled dress ization equipment can be realized to intelligent instrument data wireless transmission technology, and nimble combination can adapt to shale gas output and change. Particularly, in the later stage of production and development, development of the encrypted well needs to be added, and under the condition that large-area construction and excavation are inconvenient when the encrypted well is put into operation in a station, the application of the intelligent instrument data wireless transmission technology to skid-mounted equipment improves the convenience of installation and expansion of the intelligent instrument, can shorten the construction period of ground engineering, and improves the development efficiency of a gas field.
Therefore, the utility model has the advantages that:
1) save cost, shorten engineering construction cycle: the traditional wired instrument system is built by erecting cables or digging cable trenches, and comprises links of type selection, purchase, laying and the like of cables, junction boxes and the like, and testing, inspection and other work after system wiring and construction are finished, particularly when remote stations with the distance of several kilometers to tens of kilometers are communicated with each other, a wired mode is adopted, a large amount of manpower and material resources are needed, and the engineering period can take several months; compared with the prior art, the wireless data transmission mode saves manpower and material resources and greatly shortens the engineering period.
2) The maintenance cost is saved: the use of wired instrumentation requires high post-maintenance and repair costs. And by adopting the wireless instrument, the operation and maintenance cost can be reduced. The maintenance of the wired instrument link needs to be checked along the line, when a fault occurs, the fault point is generally difficult to find out in time, and the wireless data transmission mode is adopted, only the data transmission module needs to be maintained, so that the reason can be quickly found out when the fault occurs, and the normal operation of the line is recovered.
3) The adaptability is good: the wired instrument is greatly limited by adopting a wired scheme in special application environments with high implementation difficulty, such as limited space in a pry, numerous cables, large cable laying engineering quantity, and difficult wiring such as mobile/rotary equipment, and the wireless data transmission mode has high flexibility. Therefore, the wireless data transmission mode established by the wireless meter has better and wider adaptability than that of a wired meter and is hardly limited by the environment.
4) The expansibility is good: the wired instrument system has high expansion cost, poor flexibility and poor expandability. After a wired instrument system is built, if a new instrument or a monitoring point needs to be added to the system, if a wired mode is adopted, new wiring is needed, the construction is troublesome, and the original instrument line can be damaged.
5) Wireless meters are more suitable for use in hazardous areas: the wired instrument system has high construction and installation requirements in a dangerous environment, large project investment, poor adaptability and high installation and operation cost. The wireless mode is more suitable than the wired mode when being installed in severe environment, particularly toxic, fire, explosive and other dangerous environments.
For industrial sites, the simplest strategy to reduce the risk of a hazardous area is to install instrumentation outside the hazardous area, or take other measures to reduce the risk level of the area. The practical situation is that some instruments inevitably need to be installed in dangerous areas, meanwhile, cables, conduits, cable bridges, field junction boxes and cabinets, all wiring systems need to meet the certification requirements of explosion protection, fire protection and the like of dangerous environments, equipment investment, installation and maintenance are high, the explosion protection and fire protection level needs to be kept in the later stage, regular maintenance is needed, and the cost is high.
The used wireless equipment can reduce intermediate links such as wiring, matched protective tubes, bridges, wiring boxes and the like. Wireless process meters are typically battery powered, eliminating the need for power wiring (PS: using battery power is safe in most hazardous areas).
6) Energy conservation and emission reduction: energy conservation and emission reduction can be realized in a wireless mode. The wireless instrument can greatly reduce the electric energy consumed on an instrument line, and research and estimation show that the wireless sensor network can save 10% of energy and reduce emission or leakage by 15% for an industrial field.
Claims (9)
1. An intelligent shale gas single-well skid-mounted system based on WIA-PA technology is characterized by comprising an on-site instrument, a wireless gateway, a firewall, a well station control PLC and a remote controller;
the field instrument is respectively connected with the wireless gateway and the well station control PLC, the wireless gateway is connected with the well station control PLC through a firewall, and the well station control PLC is connected with the remote controller through an industrial Ethernet.
2. The WIA-PA technology-based intelligent shale gas single-well skid-mounted system of claim 1, wherein the field instruments comprise single-well separation metering group skid-mounted field instruments, outbound valve group skid-mounted field instruments, single-well high-pressure sand removal group skid-mounted field instruments and wellhead process group skid-mounted field instruments;
the in-situ instrument in the single-well separation metering group prying comprises a WIA-PA wireless magnetostrictive liquid level transmitter, a WIA-PA wireless combustible gas detector, a differential pressure flow transmitter, a temperature transmitter, a pneumatic cut-off valve, a pneumatic regulating valve and a precession vortex flowmeter;
the on-site instrument in the outbound valve bank prying device comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter and a pneumatic cut-off valve;
the in-situ instrument in the single-well high-pressure sand removal group prying comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter, a WIA-PA wireless magnetostrictive liquid level transmitter and a wireless WIA-PA wireless temperature transmitter;
the on-site instrument in the wellhead process group prying comprises a WIA-PA wireless combustible gas detector, a wireless WIA-PA wireless pressure transmitter, a wireless WIA-PA wireless temperature transmitter and a pneumatic cut-off valve.
3. The WIA-PA technology-based intelligent shale gas single-well skid-mounted system according to claim 2, wherein the differential pressure flow transmitter, the temperature transmitter, the pneumatic cut-off valve, the pneumatic regulating valve and the precession vortex flowmeter are all connected with a well station control PLC through wired cables;
the WIA-PA wireless magnetostrictive liquid level transmitter, the WIA-PA wireless combustible gas detector, the wireless WIA-PA wireless pressure transmitter and the WIA-PA wireless temperature transmitter are directly connected with the wireless gateway;
and the pneumatic stop valve, the pneumatic regulating valve and the precession vortex flowmeter are connected with the wireless gateway through a WIA-PA wireless I/O adapter.
4. The intelligent shale gas single well skid-mounted system based on WIA-PA technology of claim 1, wherein the wireless gateway is an IP65 protection level wireless gateway;
the wireless gateway is also connected with the power supply module through a twisted pair.
5. The WIA-PA technology-based intelligent shale gas single well skid-mounted system of claim 4, wherein the power supply module is a POE-MH module.
6. The intelligent shale gas single well skid-mounted system based on WIA-PA technology of claim 1, wherein the firewall is an industrial-grade firewall.
7. The intelligent shale gas single well skid-mounted system based on WIA-PA technology of claim 1, wherein the well station control PLC is further connected with a UPS power supply.
8. The intelligent shale gas single well skid-mounted system based on WIA-PA technology of claim 1, wherein the well station control PLC is further connected with a switchboard through industrial Ethernet.
9. The intelligent single well skid-mounted system for shale gas based on WIA-PA technology of claim 1, wherein the remote controller is a PC.
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