as p38 10 001 - sgc homs to banias pipeline
TRANSCRIPT
APPLICATION SUMMARY
PIPELINE AUTOMATION
SYRIAN GAS COMPANY
HOMS TO BANIAS GAS PIPELINE - CONTROL & SAFEGUARDING SYSTEM
The Syrian Gas pipeline is a 240km high pressure gas pipelinerunning from the Banias Power Station on the Mediterranean coastto Homs in western Syria.
The gathering station at Homs transmits natural gas, via the newpipeline, to a new Fiscal Metering Station (FMS) at the Syrian-Lebanese border. The gas is then used to supply a gas-fired powerstation at Beirut and also a new Pressure Reducing and MeteringStation (PRMS) near Banias City.
CSE Servelec were chosen, by the Syrian Gas Company, todevelop a fully integrated control and safety system to monitor thetransportation of gas from Syria to the northern Lebanese powerstation at Dayr Ammar-Beddawi.
CSE Servelec's system, supplied in a record eight weeks, providesvital control and safety facilities for the newly constructed pipeline.The system has been designed to provide flow-metering facilities atboth the Syrian-Lebanese border and at the PRMS, with remoteblock valve station monitoring and automatic pipeline shutdown inthe event of leak detection.
The core of the system is based upon CSE Servelec's versatileDistributed Control architecture and is integrated with a HIMA SIL3safety system. This allows for the Syrian-Lebanese pipeline to be inoperation before the power station at Beirut has been completed.The pipeline forms part of a larger gas distribution network and alloperations can also be supervised from CSE Servelec's SCADAsystem at Arak.
The system encompasses process control, process shutdown andemergency shutdown functionality at both Banais and the FMS.
The main objectives of the FMS system are to:• Receive gas from the high pressure Syria - Lebanon Gas Pipeline
(SLGP) and provide custody transfer to Lebanon with flow ratecontrol
• Provide process shutdown control at the FMS in the event ofcertain process upsets
• Provide emergency shutdown and de-pressurisation control in theevent of abnormal plant conditions
• Provide flow metering facilities
The objectives of the PRMS system are to:
• Receive gas from the high pressure Homs - Banias Gas Pipeline(HBGP) and reduce the pressure to an acceptable level fordelivery to the power station at Banias
• Provide process shutdown control at the PRMS in the event ofcertain process upsets
• Provide block valve station monitoring and pipeline shutdown inthe event of leak detection
• Provide emergency shutdown and de-pressurisation control in theevent of abnormal plant conditions
• Provide flow metering facilities
The overall system encompasses the requirements of processcontrol, process shutdown and emergency shutdown functionality.The core of the two systems is based around the following systems:
• MTL MOST Process Control System• HIMA H51q ESD System• CSE Servelec Xtel Server and Xtraview 3 HMI software• Block Valve Stations - CSE Seprol S500 RTU's• Flow Computers - Yokogawa Falcon
The core PCS is based on MTL's MOST Hybrid Controllerscommunicating with dedicated simplex I/O interfacing to the field. The MTL MOST Hybrid Controllers perform automatic and operatorinitiated process control and process shutdown actions. Operatorinitiated control actions are communicated from the workstations tothe controllers via the primary Xtel Server, which log alarms andevents from the PCS and the ESD System.
Communications between the Servers and the MTL MOST HybridControllers is via a dual redundant Ethernet link, whilst
Communications between the MTL MOST Hybrid Controllers andthe I/O racks is via the controller and I/O module carrier backplane.
The MTL MOST Hybrid Controllers also communicate with the ESDSystem, flow computers and Block Valve Stations via serial links.The ESD System is based on a HIMA H51q. The HIMA H51qsystem is a modular, microprocessor-based programmable system.The ESD System takes care of emergency shutdown and de-pressurisation of the plant as defined in the cause and effect charts.
Data acquisition by the PCS from the ESD System is performedover a dual redundant Modbus serial link.
Tel: +44 (0) 1246 437400Fax: +44 (0) 1246 437401Email: [email protected]
CSE-Servelec LimitedRotherside Road, EckingtonSheffield S21 4HL
www.cse-servelec.com
AS P 38 10 001