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Title: Liquid Property And Diameter Effects On Venturi Meters Used With Wet Gas Flows
Author: Richard Steven, Josh Kinney, Charlie Britton
Source: 2006 International Symposium on Fluid Flow Measurement
Year Published: 2006
Abstract: Wet gas flow metering technologies for the natural gas production industry are very important and their use is predicted to grow over the following decade. The state of the art of wet gas metering is steadily changing but it is generally true to say that the majority of the wet gas meter designs utilize Differential Pressure (DP) meter technology. Wet gas flows affect the gas flow predictions of all single phase gas flow meters but it has been found by experiment that DP meter designs are relatively reliable meters for wet gas flow applications. Whereas many gas meter designs fail to give any output or give erroneous unrepeatable gas flow rate predictions when a flow is a wet gas the DP meter type continues to operate and gives incorrect but repeatable gas flow rate predictions for wet gas flows. These incorrect (or apparent) gas flow rates are reported to always have a positive error and hence the liquid induced error on the gas flow rate prediction is commonly known as the DP meter wet gas flow over-reading.

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