Fiscal metering of natural gas, wet gas metering, and sales gas allocation (5 days)

Introductory and advanced training courses in Kuala Lumpur (Malaysia) regarding best practices in design and operation of fiscal metering, wet gas metering and sales gas allocation.

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Bolwin Su Bolwin Su

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Training Information

  • Dauer:

    1+4 days

Course dates

25 September 2017
1 day
Kuala Lumpur, Malaysia
USD 300 (Introduction)
Registration form
26 - 29 September 2017
4 days
Kuala Lumpur, Malaysia
USD 1200 (Advanced)
Registration form

Course description

Since the Netherlands adopted natural gas in the 1960s, DNV GL has been involved in the design and operation of natural gas metering stations. This five (5) days training course is consisted of a one (1) day introductory course and a four (4) days advanced course. The courses can be taken consecutively, as the introductory course is always planned the day before the advanced course begins.


This introductory course provides a good general overview of gas flow metering and gas quality metering principles, not at a detailed level, but more in related context. It is designed for participants that are relatively new to the field of fiscal metering of natural gas. For those who already possess a basic knowledge of gas, gas flow metering and gas quality metering principles, they can directly join the advanced course.


This four-day advanced course provides in-depth insight into all aspects of fiscal metering. It helps you to design and operate accurate and reliable metering stations with low levels of measurement uncertainty. You will find out how to minimise systematic errors, learn to judge whether the company that measures your natural gas usage is generating accurate data and push your gas balance to equilibrium.  Learn to discriminate between negligible ‘noise’ in your instruments and systematic errors that require adjustment. We will be illustrating how large errors may occur, and how to avoid them. You will learn how to optimise and speed up costly and time-consuming calibration and adjustment by using mobile reference tools and automation.

The advanced course also includes introduction to wet gas metering and sales gas allocation, for those relatively new to the fields or want to better understand the principles that govern wet gas flows. At DNV GL’s multiphase flow facility, flow meters are tested and fundamental research is performed to better understand the physics behind wet gas flow metering. One of the scientists working in this facility is Dennis van Putten, who will be conducting the topic in this course.


After attending, you will have gained both practical and theoretical knowledge. You will understand the principles of designing and operating fiscal metering systems for natural gas and you will be fully aware that designing an accurate measurement system not only requires sound knowledge of metering techniques, but also practical experience of do's and don'ts.  You will also gain good overview knowledge of wet gas metering and sales gas allocation.

On request, DNV GL can also provide an in-house training course in the English or Dutch language (content, location and duration of the course can be adapted to the client's wishes). Please contact us for more information.


Introductory Course

Basic gas concepts: 

  • Introduction to fiscal metering systems, definitions
  • Gas laws, concepts of compressibility
  • Measurement uncertainty definitions and methods.

Basic gas flow and gas quality principles:

  • Introduction to flow measurement technology
  • Introduction to functionality and operation of gas chromatographs

Advanced Course

Best practices in gas flow measurement:

  • Design and operating practices
  • Calibration and traceability
  • International standards & definitions in metrology
  • Dynamic effects on turbine flow meters
  • Consequences of contamination for flow meters
  • Gas cleaning by filtering

Best practices in gas quality measurement:

  • Design and operating practices
  • Sampling and calibration gases
  • Analysis of trace components, such as sulphur and oxygen
  • Water vapour and potential hydrocarbon liquid concentrations
  • Monitoring of contractual parameters
  • International standards
  • Calibration and traceability

Metering policy:

  • Important drivers in design and operation of fiscal metering
  • Recommended practice based on ISO 10012 “Management of metering”
  • Metering system classification and its impact on metering design and calibrations
  • Operational measurement uncertainty concepts and practices
  • Gas balancing and unaccounted for gas
  • Sources of piping acoustics, dynamic effects and their impact on metering

International standards and new developments:

  • Metering calibration at operational conditions
  • Traceability to international standards
  • Diagnostics of ultrasonic & turbine meters
  • Flow Verification with clamp-on meters

Basic wet gas flow measurement concepts: 

  • Introduction to wet gas flow and sales gas allocation
  • Fundamentals of multiphase flow and wet gas flow
  • Multiphase and wet gas flow measurement

Application and verification of wet gas flow meters: 

  • Dry gas flow meters applied in wet gas
  • Verification of wet gas flow meters in a multiphase flow test loop

Target group

Metering managers, metering engineers, design engineers, station operators, service staff and inspectors of fiscal metering stations as well as gas production stations.