Estimating pore-space gas hydrate saturations from well log acoustic data


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dc.contributor.author Lee, Myung W.
dc.contributor.author Waite, William F.
dc.date.accessioned 2008-08-13T14:50:52Z
dc.date.available 2008-08-13T14:50:52Z
dc.date.issued 2008-07-09
dc.identifier.citation Geochemistry Geophysics Geosystems 9 (2008): Q07008 en
dc.identifier.uri http://hdl.handle.net/1912/2327
dc.description This paper is not subject to U.S. copyright. The definitive version was published in Geochemistry Geophysics Geosystems 9 (2008): Q07008, doi:10.1029/2008GC002081. en
dc.description.abstract Relating pore-space gas hydrate saturation to sonic velocity data is important for remotely estimating gas hydrate concentration in sediment. In the present study, sonic velocities of gas hydrate–bearing sands are modeled using a three-phase Biot-type theory in which sand, gas hydrate, and pore fluid form three homogeneous, interwoven frameworks. This theory is developed using well log compressional and shear wave velocity data from the Mallik 5L-38 permafrost gas hydrate research well in Canada and applied to well log data from hydrate-bearing sands in the Alaskan permafrost, Gulf of Mexico, and northern Cascadia margin. Velocity-based gas hydrate saturation estimates are in good agreement with Nuclear Magneto Resonance and resistivity log estimates over the complete range of observed gas hydrate saturations. en
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher American Geophysical Union en
dc.relation.uri http://dx.doi.org/10.1029/2008GC002081
dc.subject Methane hydrate en
dc.subject Seismic velocity en
dc.subject Hydrate assessment en
dc.title Estimating pore-space gas hydrate saturations from well log acoustic data en
dc.type Article en
dc.identifier.doi 10.1029/2008GC002081

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