Methane hydrate formation in partially water-saturated Ottawa sand
MetadataShow full item record
Bulk properties of gas hydrate-bearing sediment strongly depend on whether hydrate forms primarily in the pore fluid, becomes a load-bearing member of the sediment matrix, or cements sediment grains. Our compressional wave speed measurements through partially water-saturated, methane hydrate-bearing Ottawa sands suggest hydrate surrounds and cements sediment grains. The three Ottawa sand packs tested in the Gas Hydrate And Sediment Test Laboratory Instrument (GHASTLI) contain 38(1)% porosity, initially with distilled water saturating 58, 31, and 16% of that pore space, respectively. From the volume of methane gas produced during hydrate dissociation, we calculated the hydrate concentration in the pore space to be 70, 37, and 20% respectively. Based on these hydrate concentrations and our measured compressional wave speeds, we used a rock physics model to differentiate between potential pore-space hydrate distributions. Model results suggest methane hydrate cements unconsolidated sediment when forming in systems containing an abundant gas phase.
This paper is not subject to U.S. copyright. The definitive version was published in American Mineralogist 89 (2004): 1202-1207.
Suggested CitationArticle: Waite, William F., Winters, William J., Mason, D. H., "Methane hydrate formation in partially water-saturated Ottawa sand", American Mineralogist 89 (2004): 1202-1207, https://hdl.handle.net/1912/1631
Showing items related by title, author, creator and subject.
Alessi, Carol A.; Beardsley, Robert C.; Caruso, Michael J.; Churchill, James H.; Irish, James D.; Lentz, Steven J.; Limeburner, Richard; Werner, R.; Weller, Robert A.; Williams, Albert J.; Williams, William J.; Manning, James P.; Smith, P. (Woods Hole Oceanographic Institution, 2001-08)The 1995 Geoges Bank Stratification Study (GBSS) was the first intensive process study conducted as part of the U.S. GLOBEC Northwest Atlantic/Georges Bank field program. The GBSS was designed to investigate the physical ...
Grant, William D.; Williams, Albert J.; Glenn, Scott M.; Cacchione, David A. (Woods Hole Oceanographic Institution, 1983-06)High quality bottom boundary layer measurements obtained in the CODE region off Northern California are described. Bottom tripod velocity measurements and supporting data obtained during typical spring and early summer ...
Cacchione, David A.; Drake, David E.; Grant, William D.; Williams, Albert J.; Tate, George B. (Woods Hole Oceanographic Institution, 1983-06)This report briefly summarizes the geological and biological data taken oft northern California before and during the Coastal Ocean Dynamics Experiment (CODE) (Allen et al, 1982) by the principal investigators of the bottom ...