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Title: New Differential Meters In Natural Gas
Author: Casey Hodges
Source: 2012 International School of Hydrocarbon Measurement
Year Published: 2012
Abstract: There are several relatively new differential producing meters that are available for end users. Each meter claims to have advantages over other meter types, specifically orifice meters. Meter types discussed include cone meters, Venturi meters, multi-ported averaging pitot tubes, multi-holed orifice plates, and diagnostic differential meters. This paper is intended to be used by purchasers of these meters to help them obtain the best meter for their application. The operating principles of these meters will be explored. This paper will look at the claims that the manufacturers of these meters make in terms of accuracy, required upstream lengths, and diagnostic capabilities. Another important aspect of these meters is industrys reaction to these meters. Should these meters be included in standards documentation? What data needs to be collected to properly develop standards, and what standards exist to help develop these meters? Additionally, the implementation of these meters and metering systems is discussed with the intent of developing system uncertainties. From a calibration facility perspective, many issues have been observed with differential metering systems. Several of these issues will be discussed in detail along with their associated implications

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