Simulation Experiment of the Relationship between CO2 Hydrate Saturation and Resistance in Porous Media
Received date: 2008-10-08
Revised date: 2009-01-08
Online published: 2009-04-10
In this paper, a gas hydrate electrical resistance monitor apparatus, which is designed by Qingdao Institute of Marine Geology, is used to analyze the CO2 gas hydrate formation and dissociation process. It is found that the electrical resistance of the porous media increases with hydrates formation and decreases with hydrate dissociation. The variation of electrical resistance is in good correlation with the temperature and pressure variation of the reaction system which can show the characteristics of the gas hydrate formation and dissociation process. Besides, the Archie′s law is introduced to calculate the hydrate saturation in porous media through the electrical resistance, and a graph of hydrates saturation versus reaction time is shown.
CHEN Qiang, YE Yu-Guang, MENG Qiang-Guo, LIU Chang-Ling . Simulation Experiment of the Relationship between CO2 Hydrate Saturation and Resistance in Porous Media[J]. Natural Gas Geoscience, 2009 , 20(2) : 249 -253 . DOI: 10.11764/j.issn.1672-1926.2009.02.249
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