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AVEVA™ Pipeline Operations for Gas

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Gas quality Row Edit: Virtual Chromatograph tab

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  • Last UpdatedApr 24, 2025
  • 1 minute read

If a gas chromatograph malfunctions, you can use a virtual chromatograph in its place as a source for volumetric corrections.

The virtual chromatograph allows the system administrator to configure a virtual gasquality record, where the gas quality composition is defined by upstream gas qualities that share similar properties. The virtual chromatograph record can handle up to 20 different sources. The values for these points are calculated using the flow-weighted average of the chosen upstream gas quality information.

Making volumetric corrections on the Virtual Chromatograph tab of the gasquality Row Edit

The following table describes items on the gasquality Row Edit: Virtual Chromatograph tab.

Item

Description

Enable virtual chromatograph

Select to enable a virtual chromatograph.

Enable Source

Select to make the Source Name and Flow Name fields available.

These two fields enable you to specify a specific virtual chromatograph source element.

Source Name

The name of the source GQ element.

Flow Name

The name of an analog record for use in a weighted average calculation.