Research on Molecular Diffusion Coefficient of Gas-Oil System

DOI: 10.4236/ojogas.2016.11002   PDF   HTML     1,810 Downloads   2,541 Views  

Abstract

During the process of gas injection flooding, when the gas comes into contact with oil, the mass-transfer phenomenon occurs. This changes the properties of the crude oil, improves the flow capacity, and thus enhances the oil recovery. Molecular diffusion coefficient is an important parameter to describe the mass-transfer rate of gas-oil system. At present, molecular diffusion coefficient is usually tested via indirect methods. There are 2 key points that should be noticed when testing this parameter. Firstly, select proper experimental methods. Secondly, use accurate model to describe the experimental data. In this research, the authors describe the researches on the experiment methods for determining diffusion coefficient for gas-oil system, the experiments and models on pressure decay, and the influencing factors that determine diffusion coefficient.

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Ye, A. , Shen, X. , Guo, P. , Wang, S. and Cheng, Z. (2016) Research on Molecular Diffusion Coefficient of Gas-Oil System. Open Journal of Yangtze Oil and Gas, 1, 23-23. doi: 10.4236/ojogas.2016.11002.

Conflicts of Interest

The authors declare no conflicts of interest.

  
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