The characteristics of gas hydrates recovered from Shenhu area in the South China Sea

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DOIResolve DOI: http://doi.org/10.1016/j.margeo.2012.03.004
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TypeArticle
Journal titleMarine Geology
ISSN00253227
Volume307-310
Pages2227; # of pages: 6
SubjectGas hydrates; South China Sea; Methane; Occurrence; Hydration number; Gas composition
AbstractFor the first time gas hydrate samples were recovered in the South China Sea during a drilling campaign implemented in Shenhu area in June 2007. Laboratory based studies for the characteristics of gas hydrate were carried out on two hydrate-bearing sediment samples. Observations found that gas hydrates occurred in the pores of fine grained sediments. The hydrates were structure I based on the Raman spectroscopic results. The guest gas molecules in hydrate cages were predominantly methane (> 99.3%) and trace amount of ethane (0.4%) and propane (0.04%) as determined with the method of gas chromatography. As estimated from the intensities of Raman peaks, the cage occupancy rates were more than 99% in large cage, and ~ 86% in small cage, respectively, corresponding to a hydration number of 5.9.
Publication date
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; National Research Council Canada
Peer reviewedYes
IdentifierS0025322712000795
NPARC number21268811
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Record identifier20edcb5f-24b1-4646-88e9-37b51abd553c
Record created2013-11-14
Record modified2016-05-09
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