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Telecommunication, Instrumentation & SCADA Systems in Indian Oil Pipelines

Telecommunication, Instrumentation & SCADA Systems in Indian Oil Pipelines. Indian Oil Pipelines. Indian Oil has a network of over 10000 KM cross- country pipelines throughout the country.

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Telecommunication, Instrumentation & SCADA Systems in Indian Oil Pipelines

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  1. Telecommunication, Instrumentation & SCADA Systemsin Indian Oil Pipelines

  2. Indian Oil Pipelines • Indian Oil has a network of over 10000 KM cross- country pipelines throughout the country. • Instrumentation Control Systems, SCADA Systems & Telecommunication Systems have a vital role to play in the safe and efficient operations of its cross country pipelines for in time and on-spec delivery of crude oil and petroleum products.

  3. Latest State of the art Instrumentation Reliable SCADA Systems Dependable Communication Systems Failsafe Control Systems Indian Oil Pipelines Cross-country Pipelines Safe, Efficient & Eco-friendly Pipeline Operations Safety of Personnel Safety of Equipment

  4. More Efficient More Reliable Less Interrupted With this, our Pipeline Operations are:- Safer With accurate Measurements Indian Oil Pipelines

  5. Indian Oil Pipelines

  6. Indian Oil Pipelines

  7. Telecommunication, Instrumentation & SCADA Systems PAS SCADA-MCS SCADA-SCC PLC BASED CONTROL SYSTEM FIELD INSTRUMENTATION

  8. Telecommunication Systems

  9. Telecommunication Systems For smooth operation of the pipeline, a dedicated communication system with 99.9% (typ.) availability is installed for providing : • An Instantaneous • Reliable & • Continuous exchange of voice & data between pumping/ terminal stations as well as with RCP locations.

  10. Telecommunication Systems Modes of communication in pipelines • H.F. Communication system • V.H.F. Communication system • Public leased circuits on hire • Line of Sight Communication system • Optical fiber Communication system • Satellite Communication system

  11. Telecommunication Systems HF Communication System • A back-up communication system • Very high range up to 1500 km • Low cost • Only simplex or half duplex possible • Requirement of separate frequency for day & night • Now phased out in pipelines

  12. Telecommunication Systems VHF Communication System • Used for communication in a pipeline station / tank farm • Base stations and hand held trans-receivers available • Suitable for short range - typically 2 km to 25 km • Low cost • Cannot be used for inter station communication in pipelines

  13. Telecommunication Systems Line of Sight Communication • Duplex communication • Supports voice, data, fax, computer networking and SCADA systems • Comparable cost with other modes • Obtaining clearances / licenses is time consuming • Very high towers up to 100 M • Maintenance of tower requires specially skilled manpower

  14. Telecommunication Systems Optical Fiber Communication • Works by sending signals down hair thin strands of glass fiber. • Has incredibly high transmission capacity i.e. bandwidth. • Immune to Noise. • Freedom from Cross talk.

  15. Telecommunication Systems Communication Systems in pipelines- • Dual redundant hot standby SDH based systems (up to STM-16, 2.5Gbps backbone links). • Equipped with Network Management System (NMS) at a central location for monitoring, control & configuration of communication equipment installed at different locations. • Optical Fibre Cable Network (12/ 24 Fibre un-armoured cable, ITU-T G.652D, G.655 single mode fibre). • Short haul (40-45 km) & long haul (100-140 km) hops.

  16. Typical Optical Fibre Cable Specifications • Overall Cable diameter : 13 – 14 mm • Wavelengths used: 1310 nm/ 1550 nm • Attenuation @ 1310 nm : 0.36 dB/km • Attenuation @ 1550 nm : 0.23 dB/km

  17. Telecommunication Systems

  18. Telecommunication Equipment FCBC 48V Battery Bank Printer PC E P A B X SDH D/I MUX Subscriber Lines Conference Set

  19. E CHARGER ROOM D.G. SET CHARGER EQUIPMENT ROOM ENGINE ROOM BATTERY ROOM A C D B SWITCH FUSE EQPT LOAD DISTRIBUTION BOX BATTERY POWER PLANT RCP Location- Power Set-up

  20. Network Management System (NMS)

  21. Pictures/ Photographs

  22. OFC Blowing in HDPE Duct

  23. OFC Splicing

  24. Instrumentation

  25. BP SUMP PUMP FS PI LS LT SUMP TANK P&I SCHEMATIC FOR ORIGINATING PUMP STATION WITH TANK FARM, BOOSTER AND ENGINE PUMPING UNITS LS PS PT METER PT TT PROVER TANK DPT DM . . . TM STR TM SEP. FILTER BP DPT S PI L B SD PI PS PT PI PS PT MAINLINE PUMPING UNITS SD PS PS PS PI PI PI PI PI PI PS PS PS PS PS PS PI TO UCP/IFP UCP/IFP UCP/IFP PT NEXT STATION Control Loop

  26. FLOW SWITCHES LEVEL TRANSMITTERS PRESSURE SWITCHES LEVEL SWITCHES PRESSURE TRANSMITTERS FLOW METERS DENSITY METERS TEMP. SWITCHES Our Process Sentinels

  27. Our Process Sentinels • Pressure Indicators • Pressure Switches • Pressure Transmitters • Flow Meters/ Flow Computers • Meter Prover • Temperature Transmitter • Temperature Indicator • Level Switches • Flow Switches • Density Meters • Control Valve • Tank Gauging System • Emergency Shutdown System

  28. Hazardous Area Classification & Protection Standards • Hazardous environments exist in oil refineries, pipeline installations, offshore platforms, chemical plants, mines etc. • Electrical equipment must be suitable for the environment in which they are to be used. • Hazardous areas are classified with respect to the potential danger of explosion and the areas are divided into zones according to the probability of the hazardous atmosphere- Zone 0, Zone 1, Zone 2. • In North America, hazardous areas are classified by classes, divisions, and groups.

  29. Hazardous Area Classification & Protection Standards • Instruments, Equipments in pipeline installations are deployed keeping in view the hazardous area classification. • Protections like Flameproof-Explosion proof, Intrinsic Safety and Ingress Protection are ensured while selection of instruments & equipments. • Each chemical gas or vapour used in industry is classified into a gas group. • Also, to ensure that there is no risk of ignition due to hot surfaces, the equipments/ instruments are classified with regard to the maximum surface temperature of any part of the equipment.

  30. Hazardous Area Classification & Protection Standards • Explosion Protection Methods/ equipment- common types • Flameproof - (Ex d) • Increased Safety - (Ex e) • Pressurisation - (Ex p) • Intrinsically Safe - (Ex i)

  31. Hazardous Area Classification & Protection Standards In case of Intrinsic Safety, the system is designed using safety barriers so that the electrical or thermal energy of a particular instrument loop can never be great enough to cause ignition. Intrinsically Safe Equipment Safety Barrier Control Equipment Room

  32. Control System Station Control Centre • Designed to provide effective & efficient monitoring, safe operation and control of local station and scraper station/ block valves under its control. • Acquires data from local PLC and scraper station/ block valves under its control in real time and transmits the same to MCC. • Configured with dual redundant hot standby computer systems.

  33. Control System • Programmable Logic Controllers (PLCs) are installed at attended stations/ scraper stations for interfacing the field devices. • Remote Terminal Units (RTUs) are installed at unattended block valve stations for interfacing the field devices.

  34. Field Instruments

  35. Field Instruments

  36. Field Instruments

  37. Field Instruments

  38. Field Instruments

  39. SCADA System

  40. SUPERVISORY, CONTROL AND DATA ACQUISITION SYSTEM SCADA System

  41. SCADA System Petroleum Pipeline SCADA networks • Dedicated SCADA system is installed to provide effective and efficient monitoring and control of the entire pipeline from Master Control Station (MCS). • SCADA system has a MCS and Station Control Centres (SCCs) at attended stations viz. pump stations/ delivery stations/ pump - cum - delivery stations.

  42. SCADA System Why is a SCADA System required ? • Automated, regular updates of field conditions. • Consolidation of information from multiple sources in a single, convenient location. • Ability to share process information among multiple spheres of influence • Easy to visualize current status of overall system.

  43. SCADA System Why is a SCADA System required?.. • Automatic alerting of abnormal field circumstances. • Ability to directly & immediately respond to abnormal field circumstances through remote control. • Maintenance of consistent, accessible archival records.

  44. SCADA System Master Control Station (MCS) • Designed to provide effective & efficient monitoring, safe operation and control of SCCs/ RTUs for entire pipeline. • Configured with dual redundant hot standby computer systems. • Adopts distributed architecture using intelligent units; all interconnected through a redundant local area network.

  45. SCADA System

  46. SCADA System Medium used for Data Transfer • Leased Lines • Fiber Optic Communication System • Satellite Communication System • Digital Microwave Communication System

  47. Data Connectivity for SCADA CP UNIT RTU STM LINK DG SET SCADA SYSTEM

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