First, the development background:
The number of wells in oil fields is large and the distribution range is from tens to hundreds of square kilometers. The distribution is relatively fragmented. At present, artificial patrol wells are mostly used. Manual operation of equipments is regularly checked and oil production data are recorded. This approach 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 the electric pump fail, they cannot be discovered in time and cannot be effectively monitored, prevented and controlled.
In response to the above problems, Beijing Altai provided GPRS 1080 series products for an oil company. It can monitor oil well parameters current, voltage, wellhead temperature, and pressure in real time online. It can diagnose real-time faults of pumping units, detect faults and alarm in time. . It can remotely control the start and stop of the pumping unit. The oil well operation parameters are queried at any time, and remote transmission of parameters and online resource sharing are realized.
Second, the basic structure of the system:
Equipment used in system engineering:
GPRS1080: 4 differential or 8 single-ended analog inputs (optional voltage and current input methods); 4 analog outputs, a total of 32 channels, each digital input and output can be configured for 8 channels;
DAM-30503: Three-phase full-parameter AC power collection module
Third, system function:
The system mainly uses DAM-3503 to collect pumping unit three-phase voltage, current, active power, power factor, daily power, and cumulative power; RTU-6100 is used to collect oil wellhead pressure, wellhead temperature, polished rod load, and shutdown parameters. The alarm information is given for abnormal conditions such as pumping well shutdown, parameter over-limit, sucker rod disconnection, and sucker rod stuck. With data power-off protection, long-term preservation of setting parameters and historical data. Remote overload control of the pumping unit through the GPRS network, timing start control.
Fourth, the configuration software application
Altai Technology has close cooperation with many excellent configuration software companies and provides our customers with free drivers for Altai's full range of products. Through the configuration software, it can automatically record the working process of the pumping unit, accumulate the start-up time and downtime, and save historical information. With static data browsing and editing functions: including pumping unit model, configuration motor model, oil well number, stroke, line name, range, alarm upper and lower limit, well well status, etc., and can add new open wells , Delete the production wells and modify the basic data of the wells. It also has real-time trend and historical trend monitoring functions such as dynamometer diagram, current diagram (or power diagram), current, voltage, temperature, pressure, etc., which can easily understand long-term parameter changes and facilitate rapid analysis. According to user needs protection design
The real-time trend and historical trend monitoring function of power diagram, current diagram (or power diagram), current, voltage, temperature, pressure, etc., can easily understand the long-term parameter changes and facilitate quick analysis. According to user needs protection design
Application effect:
Well remote monitoring and control system mainly consists of wellhead monitoring terminal and monitoring center computer system. Its function is through the real-time detection of the wellhead parameters, the detected well state parameters are transmitted to the real-time database server of the oil production plant through GPRS wireless, so that each department of production management can grasp the working state of the well in time and shorten the failure processing time of the well. Improve the rate of opening wells, increase crude oil production, improve work efficiency, provide a new means for the fine management of pumping wells, and it is an ideal production automation product for oil fields.