Olieveld RTU

The RTU (ZHC492C) developed by Zongheng Intelligent Control is a data collection and transmission unit that specializes in real-time monitoring of oil wells, water source wells, and booster pump stations. It can collect, transmit, and store the production process data of the above three measurement and control objects in real time. , alarm, and control intelligent remote terminal adopts industrial-grade design, can be used in different harsh natural environments and electrical environments, and has strong anti-interference ability. It can work normally at temperatures from -40℃ to 85℃ and at a humidity of 5% to 95%.

Features:

1. Support gateway, which can realize LoRa networking in 4G to meet some special scenarios.

2. Provide rich interfaces, including RS485, AI, DI, DO and other interfaces.

3. Supports multiple protocols, Modbus RTU, tcp/IP, HTTP, etc., and also supports two-way transparent transmission.

4. Supports automatic collection. The device itself can automatically collect sensor data to reduce server pressure.

5. Support local logic control, such as DO remotely following DI/AI.

6. Support scheduled restart and trigger actions. Provide 4-way Socket.

Application of RTU in oil fields

In oil field production, the most important thing is the oil production wells, which are mostly distributed in various oil production well fields far apart. Timely and accurate monitoring and control of the working conditions of each well is one of the most basic and important tasks of the frontline oil production team. At present, the daily inspection method of oil fields still adopts common manual inspection, which is easily affected by external factors, such as rain, snow and other bad weather, resulting in untimely inspections and low accuracy of data collection, making it impossible to grasp the well site in a timely manner. The well conditions of oil production wells and supporting adjustment measures cannot be followed up in time, which affects the normal production of oil fields. As the level of oilfield information construction continues to improve, automated equipment can be used to collect and control the well conditions and production parameters of oil pumping wells.

RTU has powerful computing power, good environmental adaptability, and multiple communication interfaces, making it an irreplaceable product in oilfield production automation equipment. As the control core of the oil pumping unit, RTU plays a real-time role in supervising and controlling the work of the oil pumping unit. RTU in pumping well

The following functions can be achieved.

3.1.1 Realize the drawing of production dynamic diagram

According to the production requirements, various production data at the wellhead of the oil pumping well can be collected in real time and drawn into an oil well performance diagram, which can be used as a basis for analyzing and diagnosing the operating conditions of the pumping well.

3.1.2 Realize intelligent control of production equipment

By automatically collecting real-time data parameters such as oil pressure, casing pressure, and current, the operating status of the pumping unit such as start and stop can be monitored in a timely manner to achieve real-time control of the production site and remotely control the operating status of the pumping unit according to the actual needs of production scheduling.

3.1.3 Achieve efficient and energy-saving equipment operation

According to the water content of the oil produced by the oil well, the rotation speed, stroke frequency and other parameters of the pumping unit can be automatically adjusted and controlled, so that the pumping unit can operate in the most reasonable working condition, reduce losses, improve efficiency, and achieve energy saving effects.

3.1.4 Implement intelligent early warning function

By analyzing the oil well diagram, the current working conditions of the oil well are analyzed, such as leakage, rod detachment, sand production, wax deposits, etc., and the wellhead packing oil leakage, oil rod stuck, broken rod, etc. of the pumping unit are analyzed. Remote shutdown operation realizes the safety protection of equipment such as oil pumping units.

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