Flow Pattern, Liquid Holdup and Pressure Drop of Gas-Liquid Two-Phase Flow with Different Liquid Viscosities

  • Zilong Liu
  • Ruiquan LiaoEmail author
  • Yindi Zhang
  • Yubin Su
  • Xiaoya Feng
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 75)


Heavy oil have attracted more and more attention. Experimental results show that the high viscosity gas-liquid two-phase flow behaviors are very different from the low viscosity. In this paper, experiments of oil-gas two-phase flow in vertical pipes with different viscosities (50,150,200 mPa s) were carried out in a diameter of 60 mm. The variation of flow pattern, liquid holdup and pressure drop with viscosity was analyzed, the transition flow (from slug to churn flow) was observed. Two empirical models and three mechanistic models were validated by experimental data, the performance of all five models become worse with the increase of viscosity and the performance of mechanistic models are better than that of empirical models. Future experimental and theoretical studies should focus on improve the accuracy of the closure relationships for high viscosity.


Different viscosities Two-phase flow Friction pressure drop Heavy oil 



This work was supported by the National Natural Science Found Project (No. 61572084) and National Key Scientific, Technological Project (2016ZX05056004-002, 2017ZX05030-005).


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Zilong Liu
    • 1
    • 2
  • Ruiquan Liao
    • 1
    • 2
    Email author
  • Yindi Zhang
    • 1
  • Yubin Su
    • 3
  • Xiaoya Feng
    • 1
    • 2
  1. 1.Petroleum Engineering CollegeYangtze UniversityCaidian DistrictChina
  2. 2.The Multiphase Flow Laboratory of Gas Lift Innovation Centre, CNPCCaidian DistrictChina
  3. 3.Oil & Gas Technology Research Institute, Changqing Oilfield Branch Company, PetroChinaXi’anChina

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