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A Cost Effective Means to Transmit Real-Time and Archived Well Data

A Cost Effective Means to Transmit Real-Time and Archived Well Data. By: Abdullah Alkhalifah, P&CSD/PCD/PASU. 24-25 November 2008. Outline. Overview of SCADA Technology SCADA Evolution in Oil & Gas Operations Operational Requirement and system Architecture

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A Cost Effective Means to Transmit Real-Time and Archived Well Data

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  1. A Cost Effective Means to Transmit Real-Time and Archived Well Data By: Abdullah Alkhalifah, P&CSD/PCD/PASU 24-25 November 2008

  2. Outline Overview of SCADA Technology SCADA Evolution in Oil & Gas Operations Operational Requirement and system Architecture Data Acquisition over Low Speed Networks Proposed Method Challenges and Opportunities Conclusion

  3. Overview of SCADA Technology Alarm Handling and Acknowledgment in Server SCADA Vs DCS … a common question data-gathering oriented. Uses Shared Data Network/open protocols Hardened Environmental Spec. Server Redundancy Number of IO’s 50K/Server

  4. Overview of SCADA Technology SCADA Vs DCS … a common question Alarm Handling and Acknowledgment in Controller DCS is process oriented DCS use proprietary network/Protocol. DCS Controller Environmental Spec. Controller Redundancy Number of IO’s Less than 5K /ctrl

  5. SCADA Evolution in Oil & Gas Operations • 60’s and earlier • Simple Press & Temp Gauges on the wellhead. • In Plant Well Testing Facilities • Local Logging on well data. • 80’s • Remote Testing Facilities. • Automated Logging of well data. • 2000+ • Specialized Inelegant Subsystem P/T/Q readings and Data logging.

  6. PDHM MPFM ESP Log File Data Scan on High speed Links • High Speed, High Bandwidth • Segregation and Security • Data Storage and retrieval on comm failure. • Device capability • File Format SCADA Communication Network F.O

  7. Number of MODBUS slave can be accessed

  8. SCADA Communication Network Serial, UHF Radio Data Scan on low speed Links PDHM MPFM ESP

  9. SCADA Communication Network Serial, UHF Radio Data Scan on low speed Links PDHM MPFM ESP

  10. Challenges and Opportunities • Current Reality • Functional Specification Document for each project. • Different approach for the same requirement. • Communication Protocol features. • Tele-Control Communication Network by IT. • Multiple services on the same network. • Impact on real time data. • Segregation of Process Data/IT services • I-Field requirements. • 1 sec Data Update Time, No data lost, Data storage at field device. • Several Specialized Devices • Scan rate for each application.

  11. Saudi Aramco Initiatives • Standardization • Standard Functional Specifications Document. • Identify specific requirement for each application. • Provide Standard Implementation methodology. • New Engineering Standard • Standard Communication Protocol. • SCADA Communication Architecture Best practices. • International Initiatives such as Intelligent Well Instrumentation Standardization (IWIS).

  12. Summary • SCADA Applications are Evolving. • Demand for more Reliable at High scan rate DATA is increasing. • Communication Infrastructure Plays Major role on the over all SCADA Performance. • User looks for Fully Integrated solution (SCADA+RTU). • User Support Open Industry Standard communication Protocols. • Standardize Functions Implementation methodology.

  13. Thank You!

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