Journal
APPLIED GEOPHYSICS
Volume 11, Issue 2, Pages 207-214Publisher
SPRINGER
DOI: 10.1007/s11770-014-0432-6
Keywords
Gas hydrate; permeability; NMR; Shenhu area
Categories
Funding
- Key Program for International S &T Cooperation Projects of China [2010DFA21630]
- National Natural Science Foundation of China [41306050]
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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.
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