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Methane Hydrate Generation Model and Software Development Based on P. Englezos Method

  • Nan MaEmail author
  • Jun Li
  • Kuidong Luo
  • Shujie Liu
  • Min Wen
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 75)

Abstract

At present, most scholars judge the hydrate formation conditions based on the thermodynamic prediction model, but more accurate prediction methods should be based on hydrate formation kinetics, while kinetic studies mostly focus on the qualitative interpretation of the generation mechanism. Based on this, this paper quantitatively studied the kinetics of hydrate formation. Combined with van der Waals and Platteeuw prediction model, thermodynamic equilibrium theory and P. Englezos method, the methane hydrate formation model was established. The generation time of hydrate was calculated under different thermodynamic generation conditions, and the data were used for verification. At the same time, using the model to calculate the approximate time required for clogging of the wellbore by hydrate formation. The results show that the hydrate formation conditions obtained by thermodynamic methods are only threshold conditions, which will not cause wellbore blockage within a certain time range. The methane hydrate formation model established in this paper can be calculated for hydrate formation time, wellbore clogging time and hydration volume.

Keywords

Hydrate Generation mechanism Phase equilibrium Hydrate generation time 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Nan Ma
    • 1
    Email author
  • Jun Li
    • 1
  • Kuidong Luo
    • 1
  • Shujie Liu
    • 2
  • Min Wen
    • 2
  1. 1.China University of PetroleumBeijingChina
  2. 2.CNOOC Research InstituteBeijingChina

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