Assessment And Upgrading of SCADA System For Petroleum Pipelines

Abstract

In this thesis, assessment and upgrading of SCADA system in Petroleum pipelines is proposed, the Pipeline of Petro energy Company (Sudan branch) was considering as a case study to show the advantage of SCADA system in Petroleum pipelines and how can Achieve steady state operation. The Pipeline Control System uses SCADA to provide information to the operator in the control centre. SCADA systems displays the data transmitted from all the sensors on the pipeline and pump stations to the video monitor and displays the parameters and devices status at each location on the pipeline and pump stations. To make a project easy to understand we used the SCADA Software (wincc6) to simulate the pump station and make connection between a PLC software and SCADA software by using communication drive. the PLC provide information to the SCADA system about the animations of pump station equipments (pump,valve,motor..), by using the ladder program which downloaded in a PLC memory and the SCADA system displays these equipments and parameters. Sudden changes in the pipeline pressure can indicate malfunctioning equipment, a leak or other undesirable condition. In order to maintain the whole pipeline in safe and smooth operation state and achieve steady state pipeline operation we have to upgrading of SCADA systems by adding more dynamic pressure and flow observation points along the pipeline, where the relevant signals will be acquired and delivered to existing running SCADA system by using remote terminals units. the pressure observation points along the oil pipeline in some of pump stations ,BV rooms and Cp stations in PE pipeline to allow operators to closely monitor pressures and device status at each location on the pipeline and know the exact cause of the failure so that they can Assessment And Upgrading Of SCADA System For Petroleum Pipeline Page 6 quickly notify the appropriate maintenance personnel. the benefits of SCADA offers in terms of reducing the cost of routine visits to monitor facility operation. The value of these benefits will grow even more if the facilities are very remote and require extreme effort.