Using Operating Data at Natural Gas Pipelines

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Using Operating Data at Natural Gas Pipelines

• Mark Westhoff
• Colorado Interstate Gas Company

International Symposium on Transportation
Recorders
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Receipt from interconnect
Transmission Systems

• Large geographical area

• Wellhead to distribution

• Nationwide grid

Receipt from gathering
Delivery to LDC
Delivery to interconnect
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Transmission System Components

• Pipeline

• Valves

• Compressors

• Storage

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Operational Data

• Pressure
• Flow rates
• Composition
• Equipment Status

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From other field areas
From other pipe locations
From pipe telemetry
Data concentration and SCADA for field area
Pipeline control
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Data Presentation

• Tabular

• Schematic

• Trend

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Real-Time Analyses

• System Balance
• Gas Blending
• Pipeline Performance

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Pipeline Performance
Measured
Q 100
Calculated
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Alarms
Basic
Advanced

• Preset tolerances
• Rate of change

• Conditional
• Analytical

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Leak Detection and Response
Detection
Response

• Dispatch
• Isolation SCADA or Manual
• Volume Reduction
• Repair

• SCADA
• Phone

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Accident Prevention
Without SCADA
With SCADA

• Education
• Surveillance
• Air
• Land
• Internal
• Cathodic Protection

• Strain gauges
• Research

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Business Processes
Operations Planning
From Field
Gas Control
Archive
SCADA
Design
Scheduling
Model
Training