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Title: Suitability Of Dry Gas Metering Technology For Wet Gas Metering
Author: D. G. Stewart, D. Hodges
Source: 2003 North Sea Flow Measurement Workshop
Year Published: 2003
Abstract: Wet gas metering is being used increasingly in economically marginal fields, reducing the capital costs by allowing several small fields to share common platform infrastructure. The development of reliable wet gas meters is a key requirement in the oil and gas industry at present. Such meters should be able to measure both the gas and liquid flowrates if desired. However, in some cases the liquid flowrate is not important, requiring only the gas flowrate to be measured accurately. If the liquid flowrate is reasonably steady, and can be determined by other means, i.e. tracer technique or periodic sampling, then a standard single phase gas meter, whose response to the presence of liquid is known, can be used with a correction applied to the reading to account for the liquid. In some other situations, unexpected well conditions can result in a higher liquid loading in the gas stream causing nominally dry gas meters to be exposed to liquids. In this case it is important for the operator to be able to establish the error in gas measurement, particularly if the meter is used for allocation purposes.

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