June 28, 2016 | Reliance SCADA
In 2015, Delta Gas Mobin Group implemented a system for the monitoring and control of the oil metering system at the West Karoun Oil Fields in Iran.
The metering system comprises three meter runs with turbine flow meters, including the meter runs' inlet and outlet. Each meter run has a capacity of 50 % for custody transfer metering.
Meter run = a piece of pipe that is equipped with all necessary instruments
for custody transfer flow metering
Each meter run is equipped with the following elements:
To verify the accuracy of flow measurement (automatically/manually), a bidirectional pipe prover is used.
The elements of each meter run are wired to the flow computing, monitoring, and supervisory cabinet (control cabinet), which is installed in the control room. One server PC and two printers are located in the operator's room. The PC is equipped with Reliance's runtime software and is connected to the control cabinet through a redundant Ethernet link.
The software has different access levels, which protect the system against unwanted access. Required field and calculated signals are transferred to the distributed control system. The system is equipped with a Siemens SIMATIC S7-400H PLC to control the operation of the motor-operated isolation valves. Flow calculations are done by using four Flow-X flow computers. Up to four fiscal signals (those that have a direct effect on measurement, such as oil flow, pressure, temperature) are transferred to a flow computer, the other signals to the PLC. Subsequently, all signals are visualized by Reliance. The Reliance SCADA system communicates with the PLC and the flow computers via a redundant Modbus Ethernet link.
The Reliance SCADA system provides the following functionality:
Try the Reliance SCADA/HMI system on several example projects or download the installer of the trial version for free.
Visualization and control of the West Karoun Oil Fields' oil metering system in Iran
Delta Gas Mobin Group
2 x Siemens SIMATIC S7-400H
4 x Flow-X flow computers
2 x Reliance 4 Control Server with 1,000 data points
Siemens & Modbus communication drivers