Natural Gas Measurement–Fundamentals

Covers the basics of physical and chemical makeup of gas mixtures and how measurements of density and volume are are affected by temperature and pressure. Covers the fundamentals of flow measurement of natural gas and how to obtain data, analyze, and determine precise measurement. Covers the basics of natural gas meter station designs, applications of volume-determining meters including the flow-conditioning requirements for orifice meters, gas turbine meters, Coriolis, and ultrasonic meters. Presents the pros and cons of different types of natural gas meters installed in the field and their relative preference for the type of application. Provides hands-on practice in inspecting dual-chamber orifice meter runs. Covers the basics of automatic and manual sampling of natural gas for the determination of the chemical composition and Btu values. Describes how gas composition and fluid properties affect measurement; and, also describe higher order real-time diagnostic capabilities for UFM and Coriolis meters. Ties all this information to optimize the natural gas measurement system for field application.

Length: 4 days

2.4 CEUs

Course Content:

• Units of measurement
• Natural gas chemistry
• Physical behavior
• Flow measurement principles and design/application/inspection
• Flow measurement principles
• Flow conditioning principles
• Orifice meters (gas) – design/application/inspection
• Orifice plate inspections - dual chamber and major orifice fittings
• Orifice flow meter run inspection and maintenance
• Displacement meters (gas) – design/application/inspection
• Turbine meters (gas) – design/application/inspection
• Ultrasonic meters (gas) – design/application/inspection
• Coriolis meters (gas) – design/application/inspection
• Pulsation effects on accuracy of NGM measurement
• Meter station design/application/inspection
• Gas chromatographs: types and theory of operation, calibration, and analysis report
• Sampling and sample-handling basics: manual sampling for spot sample, automatic sampling for composite sample, and automatic sampling for flow weighted on-line analysis
• Safety while transporting sampling
• Odorant injection and detection systems; selection, operation, monitoring, testing, and maintenance issues
• H2S analyzers: description and comparison of the theory and operation of the various H2S measurement techniques

Recommended For:

• Gas measurement technicians
• Analysts
• Engineers
• Personnel who witness or audit natural gas measurement.

Included with Course:

• For in-person classes only: Catered lunch daily; beverages and snacks provided
• Course materials including instructor presentations
• Publication: Gas and Liquid Measurement

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