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Title

Experimental and Mathematical Study of Water/Gas Two-Phase Flow at pore scale

پانزدهمین کنگره ملی مهندسی شیمی ایران
Year: 1393
COI: ICHEC15_191
Language: EnglishView: 609
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Authors

Mahnaz Hekmatzadeh - Department of Petroleum Engineering, Science and Research Branch, Islamic Azad University,Tehran, Iran
Mitra Dadvar - Department of Chemical Engineering, Amirkabr University of Technology,Tehran, Iran
Mohammadali Emadi - National Iranian Oil Company ,Tehran, Iran

Abstract:

Gas-water displacement is different from oil-water displacement because of higher interfacial tensions of gas-water respect to oil-water interfacial tensions. In this study, experimental measurements and theoretical modeling of gas-water displacement is employed to study the two phase flow mechanisms in pore scale. Then the influence of pore structure parameters including coordination number, aspect ratio and pore shape and size on the gas-water flow is investigated. 2D modeling of this process is presented in this study and simulation results are verified by comparing to experimental results where sufficient agreement was confirmed. The simulation results indicate that pore morphology and capillary number have significant influence on the competition between frontal displacement and snap-off. Frontal displacement leads to high recovery and snap off causes gas entrapment. It is concluded that increasing the pore and throat sizes, increasing the coordination number and increasing angularity (decreasing half angle) result in reducing residual gas amount. The results also indicate that residual gas saturation is not only a function of petrophysical property and pore morphology, but also it depends on flow rate and the experimental procedure.

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Paper COI Code

This Paper COI Code is ICHEC15_191. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/368077/

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Hekmatzadeh, Mahnaz and Dadvar, Mitra and Emadi, Mohammadali,1393,Experimental and Mathematical Study of Water/Gas Two-Phase Flow at pore scale,15th Iranian Natioanl Congress of Chimical Engineering,Tehran,https://civilica.com/doc/368077

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  • Chierici, gl. and Ciucci, gm., "Water drive gas reservoirs: uncertainty ...
  • Katz, D., Legatski, M., Tek, M., Gorring, L, and Neilsen, ...
  • Geffen, T., Parrish, D., Haynes, G., and Morse, R., "Efficiency ...
  • Crowell, D. C., Dean, G. , and Loomis, A., "Efficiency ...
  • McKay, B., "Laboratory studies of gas disp lacement from sandstone ...
  • Bull, _ , Bratteli, F., Ringen, J. K. , Melhuus, ...
  • Chatzis, I., and Morrow, N., "Measuremet and Conditions for Entrapment ...

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Scientometrics

The specifications of the publisher center of this Paper are as follows:
Type of center: Azad University
Paper count: 37,210
In the scientometrics section of CIVILICA, you can see the scientific ranking of the Iranian academic and research centers based on the statistics of indexed articles.

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