Study of the two-phase liquid loading phenomenon by applying CFD techniques


  • J Vieiro
  • M Asuaje
  • G Polanco



In order to understand the liquid loading phenomenon, 2D (axisymmetric) numerical simulations were performed. This phenomenon appears when the gas velocity reduces to a value below the critical speed of drop extraction in two-phase production wells, and as consequence liquid is accumulated in the tubing, increasing the pressure drop and reducing the flow rate within the tube. Simulations were made using air-water as working fluids over a vertical pipe of 4 meters long through a commercial package of CFD. Comparison between the simulation results and the experimental data available in the literature shows a good capability of homogeneous models to predict the flow characteristics for a given velocity range close to the critical gas velocity; over 100% of this parameter the model significantly overestimates the pressure drop.


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How to Cite

Vieiro, J., Asuaje, M. and Polanco, G. (2013) “Study of the two-phase liquid loading phenomenon by applying CFD techniques”, The International Journal of Multiphysics, 7(4), pp. 301-312. doi: 10.1260/1750-9548.7.4.301.