Experimental studies on the possible influences of composition changes of pore water on the stability conditions of methane hydrate in marine sediments

Download
  1. Get@NRC: Experimental studies on the possible influences of composition changes of pore water on the stability conditions of methane hydrate in marine sediments (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.marchem.2004.08.002
AuthorSearch for: ; Search for:
TypeArticle
Journal titleMarine Chemistry
Volume93
Issue2-4
Pages149157; # of pages: 9
SubjectDiagenesis; Ion; Methane hydrate; Pore water; Stability
AbstractExperiments with a set of electrolyte solutions have been carried out to investigate the effects of pore water composition changes on the stability conditions of methane hydrate in marine sediments. The results reveal that (1) SO42- and Cl- concentration changes can affect hydrate stability slightly, (2) the changes in both the type and the concentration of cations, which occur in normal diagenetic processes, do not exert a significant influence on the methane hydrate stability conditions, and (3) the shift of hydrate stability in pore water can be expressed as a function of the Cl- concentration only. Based on the results above, an empirical equation [Delta]T (K)=0.00206 Cl- (mmol/dm3) has been obtained for estimating the shift in the equilibrium temperature of methane hydrate in pore water at a given pressure.
Publication date
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
NPARC number12338945
Export citationExport as RIS
Report a correctionReport a correction
Record identifierfaeaddeb-aff6-4ec8-8f7c-e4cc7c6902b0
Record created2009-09-11
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)