Metering, Proving and Accuracy

82 Pages·2007·2.45 MB·English

Fundamentals
Metering, Proving and Accuracy
Transportation
PR0A020I Issue/Rev. 0.0 (7/07) - Slide 1
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Circa 1990
Custody Transfer Metering Technologies
PD Meters For Turbine Meters For
Heavy Products Light Products
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Today’s Metering Technologies
Conventional
Turbine Meters
Meters PD
Helical Turbine
Meters
Coriolis
Mass Flow and
Density Meters Ultrasonic
Meters
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Accurate Measurement
Requires the
Right Meter Choice
for the Application
PR0A020I Issue/Rev. 0.0 (7/07) - Slide 4
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Applications
• Crude oil transportation
• Ship and barge loading and unloading
• Refined product transportation
• Terminal loading
• Marketing
Fuel oil delivery
Aviation fuels
©Copyright 2007, FMC Technologies Measurement Solutions, Inc. PR0A020I Issue/Rev. 0.0 (7/07) - Slide 5
API MPMS Chapter 5, Section 1
General Considerations
for Measurement by Meters
PR0A020I Issue/Rev. 0.0 (7/07) - Slide 6
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What is API’s Opinion on:
• The Advantages of Metering
• Design of Meter Installations
• Meter Performance
• Meter Proving
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The Advantages of Metering
Increases the availability of tanks.
Isolation for the sole purpose of measurement is unnecessary
Provides instantaneous values
calculation, indication and display of flow rate and volume
Can deliver a measure volume taken from several sources at the
same time
Into a single receiver, or from a single source into several receivers.
Accuracy can be readily checked
Standard references
Dynamic volumes correction
Simplified temperature measurement and online product sampling
API 5.1.1 – Introduction
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Design of Meter Installations
The installation should provide for proving each
meter and should be capable of duplicating normal
operating conditions at the time of proving.
API 5.1.4 – Consideration for the Design of Meter Installations
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Meter Performance
For custody transfer applications, meters with the
highest inherent accuracy should be used and
should be proven on site.
API 5.1.8 – Meter Performance
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