• Fleissen & Company Limited

Advanced Production Measurement and Fiscal Metering

Tuesday 28 Mar - Thursday 30 Mar

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Course overview

Since measurement technology and practices constantly change, the operators need more than a basic understanding of measurement and metering. The advanced petroleum measurement course is for personnel who already know the basics of petroleum measurement. The course builds on the Fundamentals of production measurement and fiscal metering course to advance the understanding of the participants. The course dives deeper into flow meter technology, meter selection, meter calibration and proving, auto-sampling system, flow computer, management of metering systems, environmental measurement, measurement audit, introduction to measurement uncertainty evaluation, allocation methodology, introduction to the concept of cost-benefit analysis in flow measurement application, gas quality measurement, the safety aspect of petroleum measurement. The training would also cover new measurement technologies, virtual flowmeters and digital twin and their advantages and disadvantages. The training would refer to the NMDPRA and NUPRC’s guidelines and international standards such as API MPMS, ISO, AGA, BS, ASME and ASTM.

Expected learning outcomes

•Demonstrate a good understanding of the operating principles and application of gas and liquid flow metering technologies.

•Understand gas allocation at processing plant and transmission pipeline.

•Become aware of the role of measurement uncertainty in minimizing revenue losses to stakeholders in a commingle pipeline and process facility.

•Understanding of flow computers and verification of flow meter calculations for both liquid and natural gas measurement.

•Demonstrate a good understanding of the requirement for environment measurement in the context of greenhouse gas emission quantification and reporting.

Course Modules






Is measurement a cash register?

Sharing of experiences on existing field challenges. A deep dive into how poor measurement of oil and gas could rob your company’s revenue

One day



Natural gas measurement requirements 

Flow, properties, and characteristics of natural gas. Detail discussion of gas flow meter (DP meter (orifice, venturi, etc.), USM, Coriolis, thermal mass, vortex, etc.) principles, design, and application. Calibration and verification of gas flow meters. Gas chromatograph application—calorific value determination as basis for natural gas pricing. Custody transfer requirements. Flow computer requirement for gas systems and verification methods. Secondary measurement devices including densitometer, pressure transmitters, temperature transmitters, differential pressure transducers. Dewpoint measurement—water and hydrocarbon. Understanding how gas flow meters’ uncertainty impact unaccounted for gas in a gas transport network


Crude oil, condensate, and petroleum liquid measurement 

Manual and automatic tank fiscalization, tank calibration, and sources of errors. Crude oil quality measurement: Manual and auto-sampling system, and BS&W measurement, and density. A detailed discussion of liquid (covering crude oil, condensate, LNG, and LPG) flow meter (Turbine, PD, USM, Coriolis, etc.) principles, design, and application. Calibration and proving of liquid flow meters. Secondary measurement including pressure transmitters and temperature transmitters

One day



Environmental measurement

Fuel gas measurement. Flare gas measurement—understanding the dynamics and technology application. Produced water measurement

One day



Good Measurement practice and system management

Measurement uncertainty requirements. Allocation measurement requirements. System health checks. Traceability, auditable and defensible measurement


Managing regulatory requirements and contracts

Understanding regulations and setting in-house processes in place to meet the regulatory requirements. Understanding the requirement in contract that relate to management of measurement system—custody transfer, allocation measurement etc


Course delivery method

The course will be delivered using presentations, case studies, MS Excel calculation, videos, and group exercise