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Title: Effects Of Entrained Liquid On Orifice Measurement
Author: C. V. Mooney
Source: 1974 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1974
Abstract: In the measurement of natural gas 1n field operations using the conventional orifice meter all of the factors used in the calculation of flow are based on the assumption that the gas is dry. This condition is rarely the casein field measurements. The A.G. A. Committee Report No. 3, (1), does not give any Information or data regarding the effect water and/or distillate may have upon gas measurement by the orifice meter. It was 1n this area of gas measurement that graduate engineering students at Texas A&I University, Kingsville, Texas, have conducted research operation in the laboratory and in the field. Schuster, (2), has conducted full range field tests of gas-liquid mixtures at 600 and 1,000 pounds per square inch pressure using the orifice meter. In these tests a 4-inch meter run was used to measure the dry gas. After this measurement, water and/or distillate in varying amounts was introduced and the two-phase stream was then measured first through a 4-inch meter run and then by a 3-Inch meter, these tests covered liquid-gas ratios up to 600 barrels of liquid per million cubic feet of gas. A cubic foot of gas in this paper Is measured at 14.65 pounds per square inch absolute and 60 Fahrenheit.

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