The Frontiers of Society, Science and Technology, 2019, 1(10); doi: 10.25236/FSST.2019.011015.
Houwei Du
YANGTZE UNIVERSITY, College of Geophysics and Petroleum Resources, Jingzhou Hubei 434023, China
The phase distribution of oil, gas and water multiphase flow in horizontal wellbore can be visually reflected by the image formed by the logging data of capacitance array instrument. To overcome the shortcomings of existing algorithms, a dynamic subdivision method considering instrument rotation is proposed, and a new weighting function based on distance factor is proposed. An improved grid imaging algorithm with correction coefficient is presented. The processing results of the experimental data show that the image effect of the algorithm is in good agreement with the corresponding photographs.
Production logging; Capacitance array instrument; Flow imaging; Distance factor; Correction coefficient
Houwei Du. Analysis of Multiphase Flow Imaging Algorithms Based on Improved Range Factor. The Frontiers of Society, Science and Technology (2019) Vol. 1 Issue 10: 123-129. https://doi.org/10.25236/FSST.2019.011015.
[1] Dong Yong, Guo Haimin, Li Mengxia (2013). Multiphase flow imaging algorithm based on improved Gauss weight. Logging technology, vol. 37, no. 1, pp. 35-38.
[2] Dong Yong, Guo Haimin (2012). Improved multi-phase flow imaging algorithm based on distance factor. Journal of Petroleum and Natural Gas, vol. 34, no. 9, pp. 79-82.
[3] Dong Yong, Guo Haimin, Li Mengxia, et al (2014). Questions and two notes on the application of capacitance arrays. Journal of Petroleum and Natural Gas, vol. 36, no. 2, pp. 84-86.
[4] Li Nan, Xu Kun, Liu Kui (2018). Gas/liquid two-phase flow detection simulation based on ultrasound tomography. Journal of Beijing University of Technology, vol. 44, no. 5, pp. 735-742.
[5] Feng Quan, Zhang Yanhong, Zhao Xiaogang (2018). Estimation of river surface velocity based on machine vision. Journal of Agricultural Engineering, vol. 34, no. 19, pp. 140-146.
[6] Liu Junfeng, Xu Yazhong, Wu Qinxuan (2018). Holding Rate Flow Imaging Analysis of Capacitance and Resistance Ring Array Probes. Progress in Geophysics, vol. 33, no. 5, pp. 2141-2147.
[7] Zhang Kuo, Wu Xiling, Yan Jingfu, et al (2016). Data processing of electromagnetic holographic measurement of multiphase flow in oil wells. Science and technology and engineering, vol. 16, no. 26, pp. 189-194.
[8] Xue Ting, Ruan Weipeng, Zhang Shaojie (2017). Three-dimensional reconstruction and optimization of dense bubbly flow based on laser scanning. Optical Precision Engineering, vol. 25, no. 3, pp. 555-561.