Relation between relative permeability and hydrate saturation in Shenhu area, South China Sea
Li Chuan-Hui1, Zhao Qian2, Xu Hong-Jun3, Feng Kai4, and Liu Xue-Wei1
1. School of Geophysics and Information Technology, China University of Geosciences (Beijing), Beijing 100083, China.
2. Department of Mathematical Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53201-0413, USA.
3. Key Lab of Well Logging, PetroChina, Beijing 100083, China.
4. China National Oil and Gas Exploration and Development Corporation, Beijing 100034, China.
Abstract Nuclear magnetic resonance measurements in hydrate-bearing sandstone samples from the Shenhu area, South China Sea were used to study the effect of gas hydrates on the sandstone permeability. The hydrate-bearing samples contain pore-filling hydrates. The data show that the pore-filling hydrates greatly affect the formation permeability while depending on many factors that also bear on permeability; furthermore, with increasing hydrate saturation, the formation permeability decreases. We used the Masuda model and an exponent N = 7.9718 to formulate the empirical equation that describes the relation between relative permeability and hydrate saturation for the Shenhu area samples.
This study was supported by the Key Program for International S &T Cooperation Projects of China (No.2010DFA21630) and the National Natural Science Foundation of China (No.41306050).
Cite this article:
LI Chuan-Hui,ZHAO Qian,XU Hong-Jun et al. Relation between relative permeability and hydrate saturation in Shenhu area, South China Sea[J]. APPLIED GEOPHYSICS, 2014, 11(2): 207-214.
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2014, Vol. 11 
