Flow and Level Custody Measurement

Custody Transfer measurement defines the point at which ownership changes hands for the process product being measured. This transfer is unique among flow-meter applications since money changes hands and accuracy requirements are higher than they are for most other applications. The custody transfer measurement system must generate detailed and indisputable cargo reports, based on accurate flow measurements and calculations.

In this intensive and highly practical training course, participants will gain sound and practical understanding and extend their knowledge of Custody Transfer of Flow and level Measurement systems, principles and types, and how to assess their impact on the strategic and tactical aspirations of the company.

This training course will highlight:

• The laws governing fluids and gases
• Important principles of flow and level metering including accuracy and repeatability
• Main types and applications of Flow & Level meters with emphasis on custody transfer
• Flow & Level meter proving and calibration techniques
• Custody transfer principles and measurement applications

COURSE OBJECTIVES

This training course introduces participants to a variety of flow & Level measurement technologies and systems that are used custody transfer applications, and gain an understanding of how measurement systems can work properly and accurately.

1. Have a sound understanding of relevant fluid and gas Laws that are needed for the use of flow measurement devices
2. Understand the main requirements of custody transfer systems
3. Appreciate the main requirements of flow & level measurements including accuracy and repeatability
4. Be knowledgeable about up-to-date flow & level measurement meters including differential pressure (DP) measurement, turbine meters, positive displacement meters, Coriolis flow measurement, Magnetic, and ultrasonic flow measurement.
5. Gain the ability to determine if a metering system is adequate for the purpose, select appropriate custody transfer metering systems and identify potential problems
6. Learn about the principles and applications of Multiple meters/meter runs, Flow computers, Quality systems, Calibration, Meter Runs, Proving and Supporting Automation

COURSE CONTENT

1. Introduction – Basic Fluid and Gas Laws

• Custody Transfer principles and requirements
• Pressure, Viscosity, Flow Volume, Continuity Principle, Energy Law (Bernoulli’s)
• Flow Configurations (Flow Profiles), Laminar Flow, Turbulent Flow
• Reynold’s Number, Flow Losses (Friction Losses)
• Ideal and Real Gases, Gas Laws, Boyle's Law, Charles's Law, Gay-Lussac’s Law

2. Properties of hydrocarbons & API standards

3. General Characteristics and Performance of Flow Meters

• System Characteristics and Flow range
• Performance, Accuracy, Stability and Repeatability, Sensitivity, Noise, Linearity, Reliability
• Flow modification and meter runs & Applications and Usage, Sizing
• Temperature and Pressure Measurements

4. Types and Applications of Flow Meters

• Differential Pressure (DP) Flow Meters, Orifice, Venturi, Nozzles, Pitot tubes
• Positive Displacement (PD) Flow Meters, Rotor, Oscillating Piston, Oval Gear
• Turbine Flow Meters, Conventional and Helical
• Problems with Erosion, corrosion, Cavitation and Obstructions
• Uses and Applications, Installation requirements and Standards
• Ultrasonic Flow Meters, Magnetic Flow Meters & Coriolis Flow Meters
• Uses and Applications, Installation requirements and Standards
• Straight run requirement

5. Flow Measurement Systems and Custody Transfer Considerations

• Custody Transfer Requirements & Meter Factor
• Proving Systems; Direct, Indirect, Master Meter, Volume, Displacement
• Custody Transfer Skids, Flow Computers and Communication
• Temperature and Pressure Measurements

6. Level measurement

• Buoyancy tape systems & Hydrostatic pressure.
• Ultrasonic measurement & Radar measurement.

7. Custody transfer standards

• Terminal custody transfer
• Lease automatic custody transfer
• Truck custody transfer

8. Tank management systems.
9. Pipeline considerations
10. Custody Transfer Sampling.  
11. Monitoring and controlling production losses

• Fugitive emissions, Initial considerations.
• Measuring the suspended S & W content.

PARTICIPANTS

This training course is suitable for a wide range of professionals but will greatly benefit:

Engineers and Technicians of all disciplines, Instrumentation Personnel, Procurement and quality control personnel & Inspection and Maintenance engineers