• Fleissen & Company Limited

Fundamentals of Production Measurement and Fiscal Metering

Tuesday 14 Mar - Thursday 16 Mar

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Course overview

This training is for any personnel that is new to oil and natural gas production measurement and fiscal metering activities. 

There are two critical parameters when dealing with the value of oil and gas: quality and quantity. The quantity and quality of oil and gas must be measured for operational and fiscal purposes. The conditions under which oil and gas measurement devices operate is usually unsteady because of the variation in fluid properties and flowing conditions. The instabilities and variations in the behaviour of oil and gas affect how flow measurement equipment performs in service. Critical to understanding oil and gas flow measurement is the fundamental principles upon which measurement devices operate. The physical properties of oil and gas are also critical to the performance of flow measurement and metering devices. To be able operate and maintain flow measurement equipment, the field personnel must understand the fundamentals of oil and gas measurement; and then build this understanding all the way to advance levels. This course covers oil and gas flow measurement basics and provides the foundation for understanding what constitutes best petroleum measurement practices. The training would reference both local and relevant international standards.

Expected learning outcomes

•Demonstrate an understanding of how fluid flow dynamics affect the performance of flow meter.

•Explain how fluid properties affect flow measurement and performance of flow meter.

•Be able to apply basic measurement concept and communicates technically.

•Explain the factors, the reasons for meter proving, and the information obtained during meter proving. Familiarise with technologies used for both crude oil and gas measurement.

•Be able to explain why measurement of oil and gas is not only about the flow meter alone but also the secondary measurement devices

Course Modules






Criticality of production measurement fiscal metering 

Understanding the role of measurement in optimising reservoir and field performance. Fiscal metering requirement for: royalty, PPT, profit oil, etc. Environmental stewardship 

One day



Basic pipe flow concepts

The fluid flow concepts as applied to single-phase oil and gas flow and multiphase flow would be discussed to provide the trainee with a solid foundation of fluid flow consideration in flow measurement technology. 


Physical properties and quality of hydrocarbon

The module will focus on physical properties of hydrocarbon that are critical to flow measurement and that affect the performance of flow meters and revenue: BS&W, Reid vapour pressure, density, hydrocarbon dewpoint, etc


Basic concepts associated with flow measurement 

Measurement concepts such as errors, accuracy, repeatability, linearity, traceability, uncertainty. Explanation of how these concepts help in understanding how measurement and metering affect revenue. Requirements for measurement uncertainty

One day



Hydrocarbon liquid measurement (Static)

Introduction to static measurement and tank fiscalization. Tank gauging—Manual and automatic tank gauging (ATG). A look at the NMDPRA and NUPRC’s guideline and international specifications


Hydrocarbon liquid measurement (dynamic)

Introduction to dynamic flow measurement of crude oil, condensate, refined petroleum products, LNG, and LPG. Liquid flow meters technologies —turbine, PD, USM, Coriolis, etc. Introduction to meter proving and calibration. A look at the NMDPRA and NUPRC’s guideline and international specifications 


Natural gas measurement

Types of meters—DP meter (orifice, venturi, etc.), USM, Coriolis, thermal mass, vortex, etc.). Selection criteria. Gas quality measurement. A look into NMDPRA and NUPRC’s guideline and international standards

One day



Secondary measurement devices

Pressure, temperature, density, and basic sediments and water (BS&W) measurement. Introduction to manual and auto-sampling.


Meter proving and calibration best practices

Meter calibration, proving and maintenance requirements flow meter and measurement devices at: Crude oil land terminals Gas plants. Overview of measurement processes like documentation management


Introduction to flow computers

The working of flow computer. Flow computer configuration. Communication protocol

Course delivery method

The course will be delivered using PPT presentations, case studies, and group exercise