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Dualstream Venturi

The Original Wet Gas Metering System

Dualstream Venturi is a low CAPEX solution for allocation or monitoring of gas flow rate. It is typically used on a per well basis where well testing facilities exist or can easily be deployed. Common applications include tie-ins to existing infrastructure or large multi-well fields where production fluids remain relatively constant throughout field life.

Generally used in combination with test separators, tracer dilution techniques or Solartron ISA flow meters.

  • Uses existing infrastructure
  • Low CAPEX
  • Uncomplicated & Robust
  • Operator Maintenance
  • Industry Standard Computer
  • Large Installed base

Measurement Application
  • Royalty allocation
  • Flow line monitoring

  • Downloads +

  • Specifications +


    Measurement Technique
    Dualstream Venturi
    Wet Gas Correction Algorithm
    Liquid Fraction from Well Test

    Typical Operating Range
    Turndown >8:1 Typical
    Gas Mass Fraction >50-100%
    Water Liquid Ratio 0-100%

    Typical Performance
    Typical Uncertainty 95% Confidence Level
    Gas Mass Flow Rate <5%
    Liquid Mass Flow Rate from Well Test

    Typical Repeatability

    Gas Mass Flow Rate 0.15%

    Permanent Pressure Loss
    Pressure Loss Specific to Application (<1 bar) 

    Instrumentation

    Standard Field Instrumentation Comprising: 
    Differential Pressure – Class leading true digital sensor 
    Gauge Pressure – Secondary variable from DP sensor 
    Temperature – non intrusive sensor 

    Installation Requirements

    Horizontal Installation (vertical on request) 
    Upstream Straight Length: Calibrated Spool Available for Allocation Systems when Specified

    Data Acquisition
    Options Available Include:
    Dualstream Flow Computer Module - Industrial 19" Server (safe area)
    Options Available Include:
    Dualstream Industrial Flow Computer (safe area)
    Duastream Hazardous Area Flow Computer
    Floor or Wall Mounted Panel (safe area)

    User Required Inputs
    Hydrocarbon Composition
    Compositional Data
    Liquid Density
    Liquid Fraction (from well test)

     


  • Guidelines +


    Dualstream

    Oil and Gas Authority – Guidance Notes for Petroleum Measurement

    ISO 5167-4

    ASME MFC-19G-2008

  • Wet Gas Application Questionnaire +