Physics – Geophysics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29x..82w&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 24, pp. 82-1, CiteID 2229, DOI 10.1029/2002GL015988
Physics
Geophysics
5
Physical Properties Of Rocks: Thermal Properties, Mineral Physics: Instruments And Techniques, Marine Geology And Geophysics: General Or Miscellaneous
Scientific paper
Using von Herzen and Maxwell's needle probe method, we measured thermal conductivity in four porous mixtures of quartz sand and methane gas hydrate, with hydrate composing 0, 33, 67 and 100% of the solid volume. Thermal conductivities were measured at a constant methane pore pressure of 24.8 MPa between -20 and +15°C, and at a constant temperature of -10°C between 3.5 and 27.6 MPa methane pore pressure. Thermal conductivity decreased with increasing temperature and increased with increasing methane pore pressure. Both dependencies weakened with increasing hydrate content. Despite the high thermal conductivity of quartz relative to methane hydrate, the largest thermal conductivity was measured in the mixture containing 33% hydrate rather than in hydrate-free sand. This suggests gas hydrate enhanced grain-to-grain heat transfer, perhaps due to intergranular contact growth during hydrate synthesis. These results for gas-filled porous mixtures can help constrain thermal conductivity estimates in porous, gas hydrate-bearing systems.
deMartin B. J.
Kirby Stephen H.
Pinkston J.
Ruppel C. D.
Waite William F.
No associations
LandOfFree
Thermal Conductivity Measurements in Porous Mixtures of Methane Hydrate and Quartz Sand does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Thermal Conductivity Measurements in Porous Mixtures of Methane Hydrate and Quartz Sand, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal Conductivity Measurements in Porous Mixtures of Methane Hydrate and Quartz Sand will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-965386