Flow Measurement and Custody Transfer

Flow Measurement and Custody Transfer

Monday 07 Sep 2020

  • Duration: One Week
  • City: London
  • Fees: 3900 GBP

Introduction

Each procedure plant in the world takes in mass raw materials and fuel from tanker ships, railroad cars, tanker trucks, or pipelines. Refineries, chemical plants, pharmaceutical companies, and a host of other industries, have to measure raw materials and finished products accurately, because they pay for what comes in and get paid for what goes out.

Transportation companies—the ones who own the tankers, railroad cars, or pipelines—also get paid for the amount of materials they move. Companies that push oil or gas through pipelines, for example, may operate on slim margins, so they want to know exactly how much of the oil or gas transported is involved. In addition, greenhouse gas emissions and CO2 trading are emerging applications, where accurate Flow Measurement is needed.

Regardless of Whether it is oil, gas, or chemicals, a tiny error in the flow measurement of materials being transferred can cost a company millions of dollars in a single year.

Custody Transfer happens any time fluids are passed from the ownership of one party to another (e.g., from producer to pipeline, pipeline to plant, or pipeline to storage facility). Custody Transfer (or Fiscal Metering) refers to metering, that is a point of a commercial transaction, such as when a change in ownership of fluids takes place.

Subsequently, Custody Transfer defines the point at which ownership changes hands for the product being measured.

The custody transfer system must generate detailed and indisputable cargo reports, based on accurate flow measurements and calculations.

What makes custody transfer unique among flow-meter applications is that money changes hands and that accuracy requirements are higher than they are for most other applications. Hence, Custody transfer systems are more than just flow-meters and they represent a combination of highly engineered flow measurement systems for the intended application.

Objectives

– This course introduces participants to a different flow measurement technologies and systems that are used custody transfer applications, and gain a full comprehension about how measurement systems can work properly and accurately.
– These include differential pressure (DP) measurement, turbine meters, positive displacement meters, Coriolis flow measurement, Magnetic and ultrasonic flow measurement.
– Participants will gain the skills to determine if a metering system is adequate for the purpose, select appropriate systems and identify potential problems.
– Other key learning objectives of this course include the comprehending the principles and applications of Multiple meters/meter runs, Flow computers, Quality systems, Calibration, Meter Runs, Proving and Supporting Automation.
– Participants will also have a sound understanding of relevant fluid Laws that are needed for the use of flow measurement devices.

Course Outline

Day 1 – Basic Fluid and Gas Laws
– Pressure.
– Flow Volume.
– Continuity Principle.
– Energy Law (Bernoulli’s Equation).
– Pressure Change Equation.
– Flow Configurations (Flow Profiles).
– Laminar Flow.
– Turbulent Flow.
– Reynold’s Number.
– Flow Losses (Friction Losses).
– Viscosity.
– Ideal Gases.
– Gas Laws, Boyle’s Law, Charles’s Law, Gay-Lussac’s Law.

 

Day 2 – General Characteristics and Performance of Flow-Meters

– System Characteristics.
– Flow range and viscosity range.
– Performance.
– Accuracy.
– Stability and Repeatability.
– Sensitivity.
– Noise.
– Linearity.
– Reliability.
– Applications and Usage.
– Sizing.
– Calibration.

 

Day 3 – Types and Applications of Flow-Meters

Differential Pressure (DP) Flow Meters
– Types; Orifice plates, Venturi tubes, flow nozzles, averaging Pitot tubes.
– Systems, Operating Principle, Performance, Properties, Characteristics, Uses and Applications, Installation, Calibration.
– Standard AGA3.
Positive Displacement (PD) Flow Meters
– Types; Rotor, Oscillating Piston, Oval Gear, Rotating Paddle.
– Slippage, Volume displacement.
– Systems, Operating Principle, Performance, Properties, Characteristics, Uses and Applications, Installation, Calibration.
Turbine Flow Meters
– Types; Conventional and Helical.
– Problems with Erosion, corrosion, Cavitation and Obstructions.
– Systems, Operating Principle, Performance, Properties, Characteristics, Uses and Applications, Installation, Calibration.
– Standard AGA7.

 

Day 4 – Types and Applications of Flow-Meters

Ultrasonic Flow Meters
– Systems, Operating Principle, Performance, Properties, Characteristics, Uses and Applications, Installation, Calibration.
– Straight run requirement.
– Standard AGA 9.
Magnetic Flow Meters
– Systems, Operating Principle, Performance, Properties, Characteristics, Uses and Applications, Installation, Calibration.
Coriolis Flow Meters
– Systems, Operating Principle, Performance, Properties, Characteristics, Uses and Applications, Installation, Calibration.
– Standard AGA 11.

 

Day 5 – Flow Measurement systems and other considerations

– Meter Factor.
– Meter Runs.
– Proving Systems; Direct, Indirect, Master Meter, Volume, Displacement.
– Time Delay.
– Quality Systems (Gas Chromatographs and Sampling Systems).
– Custody Transfer Skids.
– Flow Computers and Communication.
– Temperature and Pressure Measurements.

Registration Request

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