OIL & GAS:

Remote monitoring of on-shore well head production systems. Remote monitoring and control of gas compressor stations and dispensing equipment.

Pipelines using Sitewatch include: Yemen Hunt Oil, Octagon Gas, Star Energy and more.

Oil Pipeline Application in the Middle East

A Sitewatch™ Remote Control and Monitoring System (RCMS) is being used to monitor a pipeline that carries oil across more than 200 km of mountainous terrain.

The important functions offered by the RCMS were:

• Flow Measurement
• Leak Detection
• Alarm Reporting
• Pump Speed Control
• Valve Position Control
• Pressure Reducing Station Monitoring
• Automatic Daily Flow Reports

One of the reasons the Sitewatch™ system was selected is its Simple, Intuitive and Consistent Interface. The HMI graphics include dynamic overview maps of the pipeline and animated schematics of plant detail. All operators receive status information, Alarm lists and Daily Pipeline reports. System supervisors can in addition operate controls and modify set-points. The operators benefit from a rich set of features including:

• Clear Alarm presentation
• Swift navigation from Alarm/Event text to relevant graphics display
• Individual User permission profiles
• Easy to use Trender
• 'On demand' set of Pipeline Reports

The pipeline transports around 170,000 barrels each day, and so the reliability of the RCMS is paramount. The system employs a pair of 'dual redundant' Sitewatch™ servers, which control and monitor Lee-Dickens' Maxi RTUs at the remote sites. There are eight Sitewatch™ clients situated along the pipeline for use by system operators and supervisors. Communications to the RTUs and remote clients are over microwave links.

Gas Pipeline Application in Central Europe

More than 50 of Lee-Dickens' RTUs are employed on a Natural Gas pipeline situated in Central Europe. The main pipeline is approaching 300km and the distribution lines extend across 4000km in total. The RTUs are involved in the Control and Monitoring of:

• Intake Metering Stations
• A Compressor Station
• 50 Customer Transfer Stations
• Main Pipeline Valves

Apart from its competitive pricing, Lee-Dickens was selected for the project because of the wide experience offered by its System Division in Project Management and providing Turnkey solutions. The system involved integration of specialist equipment from a number of suppliers. The RTUs collect data from a wide range of field devices and use GSM technology to forward it to the fault tolerant Sitewatch™.

Data from across the entire pipeline is presented to users at the Dispatch Centre. Features offered at this location include:

• Supervision and Control of Gas Transmission Network
• Gas Management System
• Gas Control and Modelling System

Another important advantage that is offered by the Lee-Dickens' system is the ability of each RTU to host Intranet WEB pages (HTML); this allows graphical representations of usage data to be viewed by the Supplier and the Customers.  View an online demo here.

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