Numerical and experimental investigation on influence of static mixer on water cut measurement in oil-water two-phase flow

SUN Cenwei; XU Ying; YUAN Chao; ZUO Rongji; SONG Zirui; WANG Da; YUAN Gang

doi:10.11949/0438-1157.20260105

您当前的位置：

首页 >

文章列表页 >

Numerical and experimental investigation on influence of static mixer on water cut measurement in oil-water two-phase flow

更新时间：2026-04-29

- Numerical and experimental investigation on influence of static mixer on water cut measurement in oil-water two-phase flow
- CIESC Journal (2026)
- 作者机构：
  
  1.天津大学电气自动化与信息工程学院，天津 300072
  2.天津市过程检测与控制重点实验室，天津 300072
  3.中海油天津化工研究设计院有限公司，天津 300131
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20260105
  CLC： TE 81
- Received：22 January 2026，
  
  Revised：2026-04-22，
  
  Accepted：29 April 2026，
- 稿件说明：
移动端阅览
SUN Cenwei, XU Ying, YUAN Chao, et al. Numerical and experimental investigation on influence of static mixer on water cut measurement in oil-water two-phase flow[J/OL]. CIESC Journal, 2026.
DOI：

SUN Cenwei, XU Ying, YUAN Chao, et al. Numerical and experimental investigation on influence of static mixer on water cut measurement in oil-water two-phase flow[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260105.

摘要

油水两相流含水率的准确测量对石油勘探开发意义重大。然而，油水流动呈现明显的非均匀性，导致传统测量方法精度受限。为此，设计开孔式SK型静态混合器P-SK，并联合微波谐振腔传感器实现含水率测量。通过CFD仿真对比4种结构，结合截面相分布与混合指数，选取6单元结构P-SK-6用于实验。结果表明，P-SK-6的双对称开孔与旋转扰动可有效削弱分层与局部聚集，改善流体均匀性，谐振腔

幅频响应随含水率变化的单调特征更连续，分辨能力更强。有效单调频点数量平均提高约3.8倍，局部分辨率最大值提高约2.6倍。基于高斯过程回归方法建立双频点预测模型，在含水率10%~30%条件下，安装P-SK-6后绝对误差和相对误差范围分别为-0.08%~0.06%和-0.39%~0.27%（P=95%），显著优于未安装时的-3.83%~3.86%和-15.21%~25.18%。

Abstract

Accurate measurement of water cut in oil-water two-phase flow is crucial for petroleum exploration and development. However

pronounced phase inhomogeneity induces fluctuations in the measured medium’s equivalent dielectric properties

compromising the stability and accuracy of conventional methods. To address this issue

the Perforated SK Static Mixer (P-SK) was designed

and a combined measurement method using P-SK and a Microwave Resonant Cavity Sensor (MRCS) was proposed to enhance measurement precision by upstream flow regulation. Four mixer configurations were evaluated by Computational Fluid Dynamics (CFD). Based on cross-sectional phase distribution and the coefficient of variation (

COV

)

the six-unit P-SK-6 was selected as the optimal device for experiments. Results show that P-SK-6

featuring dual symmetric perforations and rotational perturbation

mitigates phase stratification and local agglomeration

improving flow uniformity in the measurement section. Consequently

the transmission coefficient (

) magnitude spectra exhibit a smoother dependence on water cut. Compared with

the case without P-SK-6

the average number of monotonic frequency points increases by ~3.8 times and the maximum local resolution improves by ~2.6 times

substantially enlarging the reliable frequency bands for calibration and modeling. Based on Gaussian Process Regression (GPR)

a dual-frequency-point prediction model was established. Under water-cut conditions of 10% to 30%

the absolute and relative error ranges after installing P-SK-6 were reduced to -0.08% to 0.06% and -0.39% to 0.27% (P=95%)

respectively

which are significantly better than those without the mixer (-3.83% to 3.86% and -15.21% to 25.18%).

关键词

Keywords

references

Yang Y G , Xu Y , Zhang T . Research on low water volume fraction measurement of two-phase flow based on TM010 mode microwave cavity sensor [C ] // 2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) . IEEE , 2019 : 1 - 5 .

Shi X W , Tan C , Dong F , et al . Conductance sensors for multiphase flow measurement: a review [J ] . IEEE Sensors Journal , 2021 , 21 ( 11 ): 12913 - 12925 .

Kamal B , Abbasi Z , Hassanzadeh H . Water-cut measurement techniques in oil production and processing: a review [J ] . Energies , 2023 , 16 ( 17 ): 6410 .

Yuan C , Bowler A , Davies J G , et al . Optimised mode selection in electromagnetic sensors for real time, continuous and in-situ monitoring of water cut in multi-phase flow systems [J ] . Sensors and Actuators B: Chemical , 2019 , 298 : 126886 .

徐英 , 孟峥 , 袁超 , 等 . 油水两相流超低含水率微波相位检测方法 [J ] . 天津大学学报(自然科学与工程技术版) , 2024 , 57 ( 10 ): 1080 - 1089 .

Xu Y , Meng Z , Yuan C , et al . Microwave phase detection method for ultralow water fraction in oil-water two-phase flow [J ] . Journal of Tianjin University (Science and Technology) , 2024 , 57 ( 10 ): 1080 - 1089 .

Cai J Y , Li C , Tang X P , et al . Experimental study of water wetting in oil-water two phase flow: Horizontal flow of model oil [J ] . Chemical Engineering Science , 2012 , 73 : 334 - 344 .

Thakur R K , Vial C , Nigam K D P , et al . Static mixers in the process industries: a review [J ] . Chemical Engineering Research and Design , 2003 , 81 ( 7 ): 787 - 826 .

Valdés J P , Kahouadji L , Matar O K . Current advances in liquid-liquid mixing in static mixers: a review [J ] . Chemical Engineering Research and Design , 2022 , 177 : 694 - 731 .

中华人民共和国工业和信息化部 . 静态混合器 : JB/T 7660-2016 [S ] . 北京 : 机械工业出版社 , 2016 .

Ministry of Industry and Information Technology . Static mixer : JB/T 7660-2016 [S ] . Beijing : China Machine Press , 2016 .

Lobry E , Theron F , Gourdon C , et al . Turbulent liquid-liquid dispersion in SMV static mixer at high dispersed phase concentration [J ] . Chemical Engineering Science , 2011 , 66 ( 23 ): 5762 - 5774 .

禹言芳 , 刘桓辰 , 孟辉波 , 等 . Lightnin静态混合器内气泡分散流体动力学特性实验研究 [J ] . 化工学报 , 2022 , 73 ( 8 ): 3565 - 3575 .

Yu Y F , Liu H C , Meng H B , et al . Experimental investigation of turbulent dispersion and hydrodynamic behavior of bubble in Lightnin static mixer [J ] . CIESC Journal , 2022 , 73 ( 8 ): 3565 - 3575 .

张春梅，吴剑华，王宗勇 . SV型静态混合器湍流阻力的初步研究 [J ] . 化学工程 , 2009 , 37 ( 1 ): 19 - 23 .

Zhang C M , Wu J H , Wang Z Y . Preliminary study on turbulent flow resistance of SV static mixer [J ] . Chemical Engineering (China) , 2009 , 37 ( 1 ): 19 - 23 .

Baumann A , Jeelani S A K , Holenstein B , et al . Flow regimes and drop break-up in SMX and packed bed static mixers [J ] . Chemical Engineering Science , 2012 , 73 : 354 - 365 .

Liu S P , Hrymak A N , Wood P E . Laminar mixing of shear thinning fluids in a SMX static mixer [J ] . Chemical Engineering Science , 2006 , 61 ( 6 ): 1753 - 1759 .

甄一毫 , 王建康 , 李治建 . 不同排列角度SX型静态混合器的数值模拟 [J ] . 塑料 , 2020 , 49 ( 6 ): 108 - 111 .

Zhen Y H , Wang J K , Li Z J . Numerical simulation of SX static mixer with different arrangement angles [J ] . Plastics , 2020 , 49 ( 6 ): 108 - 111 .

Meijer H E H , Singh M K , Anderson P D . On the performance of static mixers: a quantitative comparison [J ] . Progress in Polymer Science , 2012 , 37 ( 10 ): 1333 - 1349 .

杨云兰 , 张鑫 , 刘玉辉 , 等 . 大口径长输天然气管道掺氢混气特性研究 [J ] . 石油化工高等学校学报 , 2024 , 37 ( 5 ): 11 - 19 .

Yang Y L , Zhang X , Liu Y H , et al . Study on the characteristics of hydrogen-mixed gas in large-diameter long-distance natural gas pipeline [J ] . Journal of Petrochemical Universities , 2024 , 37 ( 5 ): 11 - 19 .

张江伟 . 静态混合器的研究进展 [J ] . 中外能源 , 2022 , 27 ( 6 ): 65 - 69 .

Zhang J W . Research progress of static mixer [J ] . Sino-Global Energy , 2022 , 27 ( 6 ): 65 - 69 .

Ghanem A , Lemenand T , Della Valle D , et al . Static mixers: Mechanisms, applications, and characterization methods: a review [J ] . Chemical Engineering Research and Design , 2014 , 92 ( 2 ): 205 - 228 .

Kumar V , Shirke V , Nigam K D P . Performance of Kenics static mixer over a wide range of Reynolds number [J ] . Chemical Engineering Journal , 2008 , 139 ( 2 ): 284 - 295 .

龚斌 , 包忠平 , 张春梅 , 等 . 混合元件数对SK型静态混合器流场特性的影响 [J ] . 化工学报 , 2009 , 60 ( 8 ): 1974 - 1980 .

Gong B , Bao Z P , Zhang C M , et al . Effect of number of mixing elements on flow field in Kenics static mixer [J ] . CIESC Journal , 2009 , 60 ( 8 ): 1974 - 1980 .

Jaworski Z , Pianko-Oprych P . Two-phase laminar flow simulations in a Kenics static mixer standard Eulerian and Lagrangian approaches [J ] . Chemical Engineering Research and Design , 2002 , 80 ( 8 ): 910 - 916 .

Haddadi M M , Hosseini S H , Rashtchian D , et al . Comparative analysis of different static mixers performance by CFD technique: an innovative mixer [J ] . Chinese Journal of Chemical Engineering , 2020 , 28 ( 3 ): 672 - 684 .

Oon C S , Ateeq M , Shaw A , et al . Experimental study on a feasibility of using electromagnetic wave cylindrical cavity sensor to monitor the percentage of water fraction in a two phase system [J ] . Sensors and Actuators A: Physical , 2016 , 245 : 140 - 149 .

Sharma P , Lao L Y , Falcone G . A microwave cavity resonator sensor for water-in-oil measurements [J ] . Sensors and Actuators B: Chemical , 2018 , 262 : 200 - 210 .

Yang Y G , Xu Y , Yuan C , et al . Water cut measurement of oil-water two-phase flow in the resonant cavity sensor based on analytical field solution method [J ] . Measurement , 2021 , 174 : 109078 .

Xu Y , Zuo R J , Yuan C , et al . A water cut measurement method based on TM010 mode microwave cavity sensor [C ] // 2022 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) . IEEE , 2022 : 1 - 5 .

Meng H B , Jiang X H , Yu Y F , et al . Laminar flow and chaotic advection mixing performance in a static mixer with perforated helical segments [J ] . Korean Journal of Chemical Engineering , 2017 , 34 ( 5 ): 1328 - 1336 .

Wang C Y , Wang J K , Li Z J , et al . Study on mixing performance of perforation static mixers applied to high viscosity polymer mixing [J ] . Canadian Journal of Chemical Engineering , 2025 , 103 ( 6 ): 2953 - 2964 .

杨以光 . 基于微波谐振腔传感器的两相流相含率测量方法研究 [D ] . 天津 : 天津大学 , 2022 .

Yang Y G . Study on measurement method of phase fraction for two-phase flow using microwave resonant cavity sensor [D ] . Tianjin : Tianjin University , 2022 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of tab gap and tab wing on mixing characteristic in HEV static mixers

Effect of SiC opacifier on thermal conductivity of SiO2 aerogel composite material

Construction of a multi-physics coupling model for lithium-ion batteries based on strain response

Study on thermal performance and structural optimization of energy storage lithium-ion batteries using composite phase change materials coupled with air cooling

Molecular dynamics simulation study on hydrogen permeation performance and aging mechanism of PA6 inner liner material for type Ⅳ hydrogen storage cylinders

Related Author

LING Jihong

TIAN Xiufang

ZHANG Hao

YE Tianzhen

XING Jincheng

YIN Jinying

QIAO Xinyao

SONG Shuyu

Related Institution

School of Environmental Science and Engineering, Tianjin University

International Business Machines Corporation

School of Measurement and Control Technology and Communication Engineering, Harbin University of Science and Technology

School of Chemical Engineering, Sichuan University

School of Mechanical and Electrical Engineering, Xi’an Polytechnic University

⁰