Performance of a Horizontally Mounted Venturi in Low-pressure Wet Gas Flow

›› 2008, Vol. 16 ›› Issue (2): 320-324.

• RESEARCH NOTES • Previous Articles Next Articles

Performance of a Horizontally Mounted Venturi in Low-pressure Wet Gas Flow

FANG Lide, ZHANG Tao

Key Laboratory for Process Measurement and Control, School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China

Received:2007-05-08 Revised:2008-02-12 Online:2008-04-28 Published:2008-04-28
Supported by:
the National High Technology Research and Development Program of China(2006AA04Z167,2007AA04Z180)

Performance of a Horizontally Mounted Venturi in Low-pressure Wet Gas Flow

方立德, 张涛

Key Laboratory for Process Measurement and Control, School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China

通讯作者: FANG Lide,E-mail:leed_amy@yahoo.com.cn
基金资助:
the National High Technology Research and Development Program of China(2006AA04Z167,2007AA04Z180)

Abstract

Abstract: The performance of a Venturi tube used in wet gas flow have been explored mainly under higher-pressure condition,but very often,low-pressure test exists in some oil and gas fields in Tianjin Dagang Oil and Gas Field in China.In this study,the performance of horizontally mounted Venturi meters in low-pressure wet gas flow is discussed.Three 50 mm Venturi meters were tested systematically,withβvalues of 0.4048,0.55 and 0.70,the operation pressure of 0.15 MPa,0.20 MPa,0.25 MPa,the gas densiometric Froude number from 0.6 to 2.0,the modified Lockhart-Maretinelli parameter from 0.0022 to 0.06,and the ratio of the gas liquid mass flow rate from 0.5 to 0.99. The effects of modified Lockhart-Maretinelli parameter,pressure,gas densiometric Froude number,diameter ratio, and gas-liquid mass flow rate ratio to the Venturi tube are analyzed with new independent data.Furthermore, low-pressure performance was compared with that under high pressure.

Key words: gas-liquid two phase flow, wet gas metering, Venturi meter, over-reading

摘要： The performance of a Venturi tube used in wet gas flow have been explored mainly under higher-pressure condition,but very often,low-pressure test exists in some oil and gas fields in Tianjin Dagang Oil and Gas Field in China.In this study,the performance of horizontally mounted Venturi meters in low-pressure wet gas flow is discussed.Three 50 mm Venturi meters were tested systematically,withβvalues of 0.4048,0.55 and 0.70,the operation pressure of 0.15 MPa,0.20 MPa,0.25 MPa,the gas densiometric Froude number from 0.6 to 2.0,the modified Lockhart-Maretinelli parameter from 0.0022 to 0.06,and the ratio of the gas liquid mass flow rate from 0.5 to 0.99. The effects of modified Lockhart-Maretinelli parameter,pressure,gas densiometric Froude number,diameter ratio, and gas-liquid mass flow rate ratio to the Venturi tube are analyzed with new independent data.Furthermore, low-pressure performance was compared with that under high pressure.

关键词: gas-liquid two phase flow, wet gas metering, Venturi meter, over-reading

FANG Lide, ZHANG Tao. Performance of a Horizontally Mounted Venturi in Low-pressure Wet Gas Flow[J]. , 2008, 16(2): 320-324.

方立德, 张涛. Performance of a Horizontally Mounted Venturi in Low-pressure Wet Gas Flow[J]. , 2008, 16(2): 320-324.

References

1 Agar, J., Farchy, D., “Wet gas metering using dissimilar flow sensors: Theory and field trial results”, In: SPE Annual Technical Conference and Exhibition, San Antonio, Texas, 1-6 (2002).
2 Lupeau, A., Platet, B., Gajan, P., Strzelecki, A., Escande, J., Couput, J.P., “Influence of the presence of an upstream annular liquid film on the wet gas flow measured by a Venturi in a downward vertical configuration”, Flow Meas. Instrum., 18, 1-11 (2007).
3 Geng, Y.F., Zheng, J.W., Shi, T.M., “Study on the metering characteristics of a slotted orifice for wet gas flow”, Flow Meas. Instrum., 17, 123-128 (2006).
4 Steven, R.N., “Wet gas metering with a horizontally mounted venturi meter”, Flow Meas. Instrum., 12, 361-372 (2002).
5 National Engineering Laboratory of UK, “Effects of two-phase flow on single phase flowmeters”, Flow Measurement Guidance Note, (3), 6, 1-3 (1997). http://www.flowprogramme.co.uk/docs/reports.asp?rtype=6
6 Stewart, D.G., “The evaluation of dry gas meters in wet gas condition”, National Engineering Laboratory, London, 33-58 (2002). http://www.flowprogramme.co.uk/docs/reports.asp?rtype=1
7 National Engineering Laboratory of UK, “The evaluation of wet gas metering technologies for offshore application (1) Differential pressure meters”, Flow Measurement Guidance Note No.40.2 (2003). http://www.flowprogramme.co.uk/docs/reports.asp?rtype=6
8 Britton, C., Seidl, W., Kinney, J., “Experimental, wet gas data for a Herschel style Venturi”, In: 5th International Symposium on Fluid Flow Measurement, Arlington, VA (2002).
9 Kegel, T., “Wet gas measurement”, Colorado Engineering Experiment Station, Inc. (CEESI) Publications, USA, 1-7 (2003). http:/www.ceesi.com/pubs_wetgas.aspx.
10 ISO5167-1, “Measurement of fluid flow by mean of pressure differential deices inserted in circular cross-section conduits running full, part 1 General principles and requirements” (2003).
11 ISO5167-4, “Measurement of fluid flow by mean of pressure differential deices inserted in circular cross-section conduits running full, part 4 Venturi tubes” (2003).
12 Chisholm, D., “The influence of mass velocity on frictional pressure gradients during steam-water flow”, Inst. Mech. Eng., Thermodynam. Fluid Mech. Conv. Bristol, Paper No.35 (1968).
13 Chen, Z.H., Cao, B.L., Zhao, Z.S., Gas-Liquid Two Phase Flow and Heat Transfer, Mechanical Industry Press, Beijing, 46-51 (1983). (in Chinese)
14 Lin, Z.H., Wang, S.Z., Wang, D., Gas-Liquid Two Phase Flow and Boiling Heat Transfer, Xi’an Jiaotong University Press, China, 167-186 (2003). (in Chinese)
15 de Leeuw, R., “Wet gas flow measurement using a combination of Venturi meter and a tracer technique”, North Sea Flow Measurement Workshop, Scotland (1994).

Performance of a Horizontally Mounted Venturi in Low-pressure Wet Gas Flow

Performance of a Horizontally Mounted Venturi in Low-pressure Wet Gas Flow

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 0

Recommended Articles

Metrics

Comments