1. School of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China
2. School of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China
Abstract:Aiming at the problems of low automation and large error of existing oil well measurement methods, an oil well liquid phase correlation metering system was designed by using coaxial line phase method water content meter. In order to realize the synchronous measurement of both flow rate and water content, the correlation flowmeter was constructed by the coaxial line phase method water content meter. Moreover, the measurement model was established by cross-correlation method. Through the analysis of the upstream and downstream water content meter signals under different circumstances, it can be seen that there is a correlation between the two signals, to meet the conditions for the use of the correlation flowmeter. Compared with the turbine flowmeter in field tests, the average error of the system was 11.36%. The results proved the feasibility of the system in practical applications.
MA L, MCCANN D, HUNT A. Combining magnetic induction tomography and electromagnetic velocity tomography for water continuous multiphase flows [J]. IEEE Sensors Journal, 2017, 17(24): 8271-8281.
LI J X, JIA H K, SONG Y, et al. Current technical status and development trend of oil well production measurement [J]. Acta Petrolei Sinica, 2017, 38(12): 1434-1440.
CAI K Y, HUANG W X, GUO B Q, et al. Development status of oil, gas and water three-phase flowmeter [J]. China Petroleum and Chemical Standard and Quality, 2018, 38(24): 92-93.
[6]
HANSEN L S, PEDERSEN S, DURDEVIC P. Multi-phase flow metering in offshore oil and gas transportation pipelines: Trends and perspectives [J]. Sensors, 2019, 19(9): 2184-2210.
[10]
MERIBOUT M, AZZI A, GHENDOUR N, et al. Multiphase flow meters targeting oil & gas industries [J]. Measurement, 2020, 165: 108111.
[11]
MUNIR M, KHALIL B A. Cross correlation velocity measurement of multiphase flow [J]. International Journal of Science and Research, 2015, 4(2): 802-807.
[13]
WANG D, JIN N, ZHAI L, et al. Measurement of oil-gas-water mixture velocity using a conductance cross-correlation flowmeter with center body in small pipe [J]. IEEE Sensors Journal, 2019, 19(12): 4471-4479.
ZHANG S Y. A new method of measuring the flow rate of liquid production profile of horizontal well based on the thermal tracer principle [J]. Petroleum Geology & Oilfield Development in Daqing, 2019, 38(6): 78-82.
TONG W G, ZHU G H, GU H. Correlation flow measurement method for gas-liquid two-phase flow based on tomography [J]. Acta Metrologica Sinica, 2020, 41(10): 1245-1251.
SABZEVARI F M, WINTER R S C, OLOUMI D, et al. A Microwave Sensing and Imaging Method for Multiphase Flow Metering of Crude Oil Pipes [J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020, 13: 1286-1297.
XU L J, WU X K, ZHANG M B, et al. Research on two-phase flow measurement over real-time cross-correlation algorithm [J]. Journal of Jilin University(Information Science Edition), 2017, 35(2): 139-145.
WANG J Q, QIANG X F, YU Y H. Test study of water cut tool in oil well based on phase method [J]. Acta Metrologica Sinica, 2004,25(4): 366-368.
WANG J Q, QIANG X F, ZHANG Y K. Coaxial transmission line phase method for measuring water content of oil well [J]. Chinese Journal of Scientific Instrument, 2002, 23(1): 74-76.
WANG H B, WANG S H, JI B S, et al. An improved multiple threshold wavelet packet de-noising algorithm and its application [J]. Acta Metrologica Sinica, 2016, 37(2): 205-208.
FANG L D, LANG Y X, ZHAO N, et al. Study on measurement of two-phase gas-liquid flow based on coaxial phase [J]. Acta Metrologica Sinica, 2020, 41(4): 434-440.
ZENG J K, ZHAO W L, LOU J J. Low-sampling rate ultrasonic water meter time delay estimation method based on correlation method [J]. Journal of Electronic Measurement and Instrumentation, 2021, 35(9): 179-185.
LI W S, XU W J, ZHANG T. Improvement of threshold denoising method based on wavelet transform [J]. Computer Simulation, 2021, 38(6): 348-351.
WANG J M, LI B, WANG Q, et al. Measurement of gas/liquid two-phase flow velocity based on lifting wavelet time delay estimation [J]. Chinese Journal of Scientific Instrument, 2017, 38(3): 653-663.
WAN N, QIAN X C, YAN Y. Review of cross-correlation velocimetry algorithms for multiphase flow measurement [J]. Journal of Electronic Measurement and Instrumentation, 2022, 36(5): 1-11.