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Title: Advanced Gas Ultrasonic Meter Diagnostics
Author: David Brown
Source: 2017 International School of Hydrocarbon Measurement
Year Published: 2017
Abstract: This paper discusses what has been considered advanced ultrasonic meter diagnostic procedures in light of the emerging trend of modifying traditional meter geometry and path layout to extract additional diagnostic information. The industry is recognizing that process contamination or the presence of two phase flow, when left undetected, can be one of the single biggest causes of uncertainty in measurement. The diagnostic capability of meters vary and this paper will focus on those meters that are considered custody transfer or marketed as fiscal meters that have path layouts yielding velocity data comparisons that form the basis of advanced diagnostics. The field and test data will utilize the (4) path chordal British Gas in addition to dedicated diagnostic paths for explanatory purposes.

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