georefid:2001-022852SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1190/1.1438914<gco:CharacterString>Estimation of gas-hydrate concentration and free-gas saturation from log and seismic data</gco:CharacterString>2001-01-01publicationgeorefid:2001-022852doi:10.1190/1.1438914Tinivella, UmbertaIstituto Nazionale di Oceanografia e di Geofisica e di Geofisica Sperimentale (OGS), Trieste, ItalyauthorCarcione, Jose M.authorSociety of Exploration Geophysicists, Tulsa, OK, United StatespublisherdocumentHardcopyIn: Sparkman, Gene (prefacer), Rock physics20 (2)200-203When no direct measurements are available, detailed knowledge of the compressional- and/or shear-wave velocity fields is essential for quantitative estimation of gas hydrate and free gas in bottom-simulating reflectors (BSR). Discrepancies between experimental velocity profiles and the velocity for water-filled sediments reveal the presence of gas hydrate (positive anomalies) and free gas (negative anomalies).completedEconomic geology, geology of energy sourcesApplied geophysicsAtlantic OceanBlake-Bahama Outer Ridgebody wavesboreholesbottom-simulating reflectorsconcentrationelastic wavesgas hydratesgeophysical methodsgeophysical profilesgeophysical surveysLeg 164natural gasNorth AtlanticOcean Drilling ProgramODP Site 995petroleumpetroleum engineeringpetroleum explorationreservoir propertiesS-wavessaturationseismic methodsseismic profilesseismic wavessurveysvertical seismic profilesurn:org.iodp:exp:164urnlargerWorkCitationcampaignurn:org.iodp:exp:164:site:995urnlargerWorkCitationstudyurn:org.iodp:exp:164urnlargerWorkCitationcampaignEnglishgeoscientificInformation-77.0000-75.000032.000033.0000