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Experimental Investigation of Regular or Wavy Two-Phase Flow in a Manifold

Xiaowei Nie1, Lihui Ma2,*, Yiqiu Xu3, Dong Sun2, Weibo Zheng2, Liang Zhou2, Xiaodong Wang2, Xiaohan Zhang2, Weijia Dong2, Yunfei Li2

1 Sionpec Shengli Oilfield Company, Dongying, 257000, China
2 Technical Inspection Center, Sionpec Shengli Oilfield Company, Dongying, 257000, China
3 Offshore Oil Engineering Co., Ltd., Dongying, 257000, China

* Corresponding Author: Lihui Ma. Email: email

(This article belongs to this Special Issue: Advanced Oil and Gas Transportation and Treatment Technologies)

Fluid Dynamics & Materials Processing 2023, 19(1), 37-50.


An experimental study was conducted to investigate the properties of stratified regular or wavy two-phase flow in two parallel separators located after a manifold. A total of 103 experiments with various gas and liquid velocity combinations in three inlet pipes were conducted, including 77 groups of outlet pipe resistance symmetry and 26 groups of outlet pipe resistance asymmetry trials. The experimental results have revealed that when the gas-liquid flow rate is low, the degree of uneven splitting is high, and “extreme” conditions are attained. When the superficial gas velocity is greater than that established in the extreme case, the direction of the liquid-phase displacement is reversed, while that of the gas remains unchanged. Thus, the degree of gas phase bias tends to be mitigated with an increase in the gas velocity, while the uneven splitting degree of liquid approaches 10%. Finally, varying the gas-phase outlet pipe resistance is shown to effectively change the gas-liquid two-phase flow distribution.


Cite This Article

Nie, X., Ma, L., Xu, Y., Sun, D., Zheng, W. et al. (2023). Experimental Investigation of Regular or Wavy Two-Phase Flow in a Manifold. FDMP-Fluid Dynamics & Materials Processing, 19(1), 37–50.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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