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Title: LARGE CORIOLIS METERS AND THE APPLICABILITY OF WATER CALIBRATIONS FOR GAS SERVICE
Author: Marc Buttler,Tonya Wyatt,Karl Stappert
Source: 2022 Appalachian Gas Measurement Short Course
Year Published: 2022
Abstract: In the late 1970s, the first Coriolis mass flow meter was introduced. By the early 1980s, the use of Coriolis me- ters gained popularity for liquid applications, but few were used for gas applications. In the 1990s major design en- hancements were made to the technology improving its usability in gas applications. Driven by the need for a stan- dard industry practice to guide its use in gas applications, the American Gas Association (AGA) published the first edition of AGA Report Number 11, Measurement of Natu- ral Gas by Coriolis Meter in 2003. Today, with an installed population of over 100,000 Micro Motion Coriolis meters in gas applications and the 2013 publication of the second edition of AGA Report No. 11, many users are applying Coriolis meters in gas custody transfer applications. There are many advantages users have found to using Coriolis meters over other technologies including: Very high accuracy measurement No moving parts to wear over time Bi-directional flow capabilities Typically no flow profile or straight run requirements (de- sign specific - check with manufacturer) Water calibration valid for gas applications (design spe- cific - check with manufacturer) Direct mass measurement eliminates the need for pres- sure and temperature compensation in most cases No damage to flow tubes with over range of flow (unlike most mechanical meters) Tolerant of wet gases and dirty gases Insensitive to flow pulsations (design specific - check with manufacturer) Multiple health diagnostics available (check with manu- facturer for details)

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