Sales Metering Calibration & Operations

OG-722

Course Description

The smallest error in the flow measurement of materials like oil, gas, or chemicals as being transferred between a producer (supplier) and customer may cost a company millions of dollars in a year.
Custody Transfer takes place any time fluids are changing possession from one party to another e.g., from producer to pipeline, pipeline to plant, or pipeline to storage facility. Custody Transfer refers to any agreed metering condition in a sales contract between supplier while Fiscal Metering refers to metering of a commercial transaction that should comply with legal obligations and so in this case there is no discussion about the metering requirements.
This course introduces participants to a variety of flow measurement technologies that are used in custody transfer applications while the objective is to gain an understanding about how to achieve the requirements by means of differential pressure (DP) measurement, Turbine meters, Positive displacement meters, Coriolis flow measurement, Magnetic and Ultrasonic flow measurement.
Participants will gain the ability to determine if a metering system is fit for the purpose while other key learning objectives of this course include the understanding of the principles of Fluid Dynamics, Meter runs, Flow computers, related Quality systems, applied specification of Accuracy terms, Calibration and Proving systems.

Utilities required for fiscal flow metering.
The aim of Loss Control.
Fiscal metering station.
Fluid Dynamics – Liquids and Gases.
Energy conservation according to Bernoulli’s Law.
The types of Flow Patterns and influence on flow measurements
Flow measurement based on ∆ P measurement.
Flow meters for Oil & Gas : Turbine, Positive Displacement, Thermal Mass, Coriolis, Ultra Sonic, Vortex and EMF meter.
OIML classification of metering devices and recommendations for fiscal metering.
Applied Accuracy Terminology and manufacturer specification
Applied Custody & Fiscal Metering contracts.
Moisture and HC Dew-point measurements.
Application of Process Gas Chromatography.
Heating Value Measurements.
Flow meter Calibration.
Proving and Validation.
Flow computer dedicated functions.
Application of International Metering Standards for Oil & Gas.
Multiphase Flow and Water Cut measurements.

This short course is designed for all site personnel not limited to Instrument Technicians or Supervisory Engineers, Process engineers, Production engineers, Operators and Control room personnel dealing with fiscal, custody transfer and allocation flow metering.

Standardized Gas Flow Metering standards.
Fiscal Gas Metering Station Design.
Flow Calibration.
What are the reasons for Flow Meter calibration and practical considerations?
What is the difference between Calibration and Proving?
What are the different types of flow meter calibration systems?
What are the issues concerning testing, calibration and presentation of proving data?
What alternative type of Turbine meter calibration is applied?
What are the trends and best practices?

What are the main types of Prover systems and their specific reasons of application,
How is the way of operation of Tank provers, Piston provers, Displacement types prover, Bi-directional Pipe prover and Ball Prover
What are the reasons for application of a Master Meter system?
What are important general prover issues?

Why is MPF metering not suitable as CT / fiscal metering?
What are the three phase flow properties?
What is meant by “Water-Cut” and how is it measured?
What are the measuring principles for WC like absorption spectroscopy,
What are the applied three phase metering techniques?
What is meant by GVF and WC and what influences do they have on the performance?
Industrial types that will discussed are the developed MPF meters from Roxar, Daniel, Agar, Expro, Haimo, Framo / Schlumberger and Jiskoot.
Summary.

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