The Flow Measurement of Multiphase Flow Based on the Conductance Sensor
- 1 Key Laboratory of Photoelectric Logging and Detecting of Oil and Gas, Ministry of Education,
- 2 Key Laboratory of Photoelectric Logging and Detecting of Oil and Gas, Ministry of Education,
- 3 Key Laboratory of Photoelectric Logging and Detecting of Oil and Gas, Ministry of Education,
- 4 Key Laboratory of Photoelectric Logging and Detecting of Oil and Gas, Ministry of Education,
Abstract
Oil-gas-water three-phase flow in the pipe is commonly encountered in the petroleum and nature gas industry. Its flow patterns are complex and always changeable, so it’s difficult to be measured and is becoming one of the most important subjects. Moreover, most of the oil fields in China are in such a high water fraction period that measures must be taken to meet the needs of the actual production. A conductance sensor which is widely used in the measurements of oil-water two-phase flow is used to measure the flow rate of the three-phase flow based on the research of the characteristics and the correlation theory, and a new technical solution which is suitable for measuring the oil-gas-water three-phase flow is established. A series of tests demonstrate that it’s feasible to use the conductance sensor in the measurements of oil- gas-water three-phase flow.
- M. H. Butterfield, G. F. Bryant and J. Dowing, “A New Method of Strip Speed Measurement Using Random Waveform Correlation,” Transactions on Society of Instrument Technology, Vol. 13, No. 2, 1962, pp. 111-113.
- M. S. Beck, “Correlation in Instruments: Cross Correlation Flowmeter,” Journal of Physics E: Scientific Instruments, Vol. 14, No. 1, 1981, pp. 7-19. doi:10.1088/0022-3735/14/1/001
- R. Thorn, M. S. Beck and R. G. Green, “Non-Instrusive Methods of Velocity Measurement in Pneumatic Conveying,” Journal of Physics E: Scientific Instruments, Vol. 15, No. 11, 1982, pp. 1131-1139.
- M. S. Beck and A. Plaskowski, “Cross Correlation Flow meters—Their Design and Application,” Taylor & Francis, Bristol, 1987.
- G. P. Lucas, N. D. Jin, “Investigation of a Drift Velocity Model for Predicting Superficial Velocities of Oil and Water in Inclined Oil-In-Water Pipe Flows with a Centre Body,” Measurement Science and Technology, Vol. 12, No. 9, 2001, pp. 1546-1554.
- G. P. Lucas, N. D. Jin, “Measurement of the Homogeneous Velocity of Inclined Oil-In-Water Flows Using a Resistance Cross-Correlation Flow Meter,” Measurement Science and Technology, Vol. 12, No. 9, 2001, pp. 1529- 1537.
- G. P. Lucas and N. D. Jin, “A new Kinematics Wave Model for Interpreting Cross Correlation Velocity Measurements in Vertically Upward, Bubbly Oil-In-Water Flows,” Measurement Science and Technology, Vol. 12, No. 9, 2001, pp. 1538-1545.
- L. A. Xu, “The State-Of-Art and Developing Trend of Correlated Flow Measuring Techniques,” Process Automation Instrumentation, Vol. 9, No. 3, 1988, pp. 1-4.
- X. B. Liu, “Downhole Measurement of Oil/Water Two-Phase Flows,” Ph.D. Thesis, Harbin Institute of Technology, Harbin, 1996.
- J. H. Hu, X. B. Liu, et al., “A Conductance Sensor for Simultaneously Measuring Flowrate and Watercut in Oil/Water Two-Phase Flow,” Well Logging Technology, Vol. 26, No. 2, 2002, pp. 154-157.
- C. Jin and L. A. Xu, “Cross-Correlation Flow Measurement System Based on DSP,” Automation and Instrumentation, Vol. 14, No. 2, 1999, pp. 4-7.