Control scheme of monitoring system of oilfield joint station

Joint station is the abbreviation of joint operation station for centralized oil and gas processing. It mainly includes especially centralized treatment (crude oil dehydration, natural gas purification, crude oil stabilization, light hydrocarbon recovery, etc.), oilfield water injection, sewage treatment, power supply and transformation and auxiliary production facilities.

① NA400PLC can provide a variety of single CPU solutions, CPU integrated Ethernet interface.

② CMM401-0411 serial server can provide 4 RS485 interfaces, support standard MODBUS protocol and user-defined protocol, and can communicate with various smart devices on site.　

Pumping unit control scheme

NA-RTU series remote control terminal NARTUCPU401-1101 is an oil field SCADA system proposed by Nanda Auto Technology Co., Ltd. Real-time monitoring, remote control and remote parameter adjustment on site are realized through RTU, and unified scheduling and intelligent management of oilfield production are realized.

NA-RTU function introduction  >>>

① Support RTU alarm data to actively upload SCADA system function (uplink communication protocol: IEC60870-5-104 or MODBUS TCP).

② Support multiple data collection methods of dynamometer graph.

③ Support electric power chart measurement and auxiliary analysis: indirect real-time measurement of “power chart” using motor electrical data to assist analysis of oil well working conditions.

④ It has a calendar clock and supports network communication time correction (calendar clock is powered off for 3 months).

⑤ Support the upstream network interrupt RTU monitoring data with clock large-capacity data buffer (10 days).

⑥ Support laptop computer or handheld operator to conduct on-site measurement, control, configuration and debugging of RTU.

⑦ Built-in temperature measurement module, real-time monitoring of ambient temperature.

⑧ With PT100 temperature interface, real-time monitoring of ambient temperature.

Programmable NARTU scheme for small water injection station, metering room and water distribution room

Scheme description >>>

◎ The RTU body integrates 12DI, 10DO, 5AI, 3 channels 485, 1 channel Ethernet (Modbus TCP/IP or IEC104 optional).

◎ Support various I/O expansion modules, serial communication modules, DP communication modules.

◎ Support configuration mode to program RS485 instrument of Modbus RTU protocol, very simple.

◎ PLC language, such as ladder diagram programming, has low requirements for the skills of debuggers, which is convenient for integrators to master programming and debugging skills.