Oilfield remote monitoring system

　　Case background

　　In recent years, with the progress of society and the development of economy, science and technology, people's living, working and production levels have been greatly improved. Oil plays a vital role in people's production and life. The efficient collection and production of oil will help to promote the harmonious progress of society. There are a large number of oil wells in China's oilfields and their distribution range is relatively scattered. At present, most of them adopt the manual well patrol method, which manually checks the operation of the equipment and records the oil production data every day. This way will inevitably increase the labor intensity of workers, and affect the real-time and even accuracy of equipment monitoring and oil production data. When the pumping unit and electric pump fail, they can not be found in time and can not be effectively monitored, prevented and controlled. Considering these situations, GPRS monitoring is the most appropriate.

　　Scope of application

　　The system is suitable for remote monitoring and management of oil fields and oil wells.

　　system composition

　　The oil field and oil well remote monitoring system is mainly composed of dispatching center, oil field and oil well monitoring center, communication platform, oil field and oil well remote measurement and control terminal, metering and measurement (three-phase voltage transformer, three-phase current transformer, temperature sensor, etc.) equipment and control equipment (AC contactor).

　　Composition of oilfield remote monitoring system

　　System functional features

　　Oil field and oil well remote monitoring system remotely collects three-phase voltage, current, active power, power factor, daily power consumption and accumulated power of pumping unit; Remotely collect the wellhead back pressure, wellhead temperature, polished rod load, shutdown and other parameters of the oil well, and give alarm information for abnormal conditions such as shutdown of the pumping well, parameter out of limit, disconnection of the pumping rod, jamming of the pumping rod and so on.

　　Hardware Introduction (rtu6100)

　　1) Wide voltage power supply range: 7v-30v, suitable for industrial occasions;

　　2) With RS232 and RS485 (when 232 is also converted to 485, there can be two 485 channels), it can be easily configured and RS485 network can be established;

　　3) 6 channels of ad analog input (12 bits), the input voltage is 0-30V, and it can also measure 4-20mA industrial current signal. Ad analog is suitable for collecting various sensor signals;

　　4) 6-way relay output control and 4-way optocoupler input and output control (the number of input and output bits is optional), which can be used for input and output occasions, such as motor startup;

　　5) Transmission supports a variety of protocols. Our company's self-defined protocol and Modbus Protocol (ASCII, RTU, Modbus TCP) perfectly support, and Modbus protocol perfectly supports configuration;

　　6) Data transmission adopts GSM module, which can realize the following functions:

　　GPRS disconnection automatic reconnection;

　　Up to 6 central servers can be connected at the same time as required;

　　Support the addressing mode of fixed IP, domain name resolution and APN private network;

　　Support TCP, UDP, PPP, ICMP, DNS, FTP and other protocols;

　　Reduce the cost of wiring and the trouble of construction;

　　Support SMS data transmission and SMS parameter configuration;

　　Support phone and SMS wake-up function;

　　7) Support special software for local and remote parameter configuration and maintenance;

　　8) Support local and remote firmware upgrade;

　　Software screenshot

　　real-time display

　　1) The device list on the left shows the information of current online and offline devices. When the device is connected to the network, it will enter the "online device list" from the "offline device list". If the device is not online for a long time, it will enter the "offline device list" from the "online device list";

　　2) The upper right corner displays the equipment number, user name, contact person, operation date, system service expiration date, telephone, fax, mobile phone, address, SIM card number and other information;

　　3) The upper left corner displays the three-phase voltage, current, active power, power factor, daily power consumption, accumulated power, wellhead back pressure, wellhead temperature, polished rod load, working state and other information of the pumping unit;

　　4) Under the window, the three-phase voltage, current, active power, power factor, daily power consumption, accumulated power, wellhead back pressure, wellhead temperature, polished rod load and other curves of the pumping unit are displayed in real time;

　　5) The middle text prompts the current equipment login time and the last time of collecting and returning data;

　　Management interface of oilfield remote monitoring system

　　Historical records

　　Users can search history according to time period;

　　The history record will be drawn on the window in the form of curve, and the history record can be displayed under the window in the form of list. Through the history record, the equipment operation status and relevant trend can be viewed;

　　The history records queried at the same time can be exported to excel;

　　Effect drawing of configuration software

　　Users can customize the program through configuration software according to their needs, so that the interface expression form is more flexible;

　　Advantage characteristics

　　◆ in case of voltage, current, temperature overrun, equipment protection and other conditions on site, the site controller can send alarm text messages to inform relevant personnel.