{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282679038342016.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.3720/japt.75.59"}},{"identifier":{"@type":"COI","@value":"1:CAS:528:DC%2BC3cXivFKktLw%3D"}},{"identifier":{"@type":"NAID","@value":"130004496457"}}],"dc:title":[{"@language":"en","@value":"The rock physics model in the unconsolidated methane hydrate bearing sediments"},{"@language":"ja","@value":"未固結堆積物のメタンハイドレート胚胎層の岩石物理モデル"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"It is well known that the methane hydrate exists below the sea floor over 500 m or the polar region under the frozen ground in the Earth. We made the cross-plot of the methane hydrate and Vp, Vs, or Vp/Vs from the well log data at the eastern Nankai Trough in Japan and the Mackenzie Delta in Canada. We found that as the methane hydrate saturation increases, Vp and Vs increase, and Vp/Vs decreases from these plots. We discussed the rock physics model of methane hydrate bearing layers. We calculated Vp, Vs, and Vp/Vs as the function of the methane hydrate saturation, based on four imaginary rock physics model of methane hydrate bearing layers. From the comparison between the real well sonic data and the calculated data from four models, we inferred that the rock physics model of methane hydrate bearing layers was matrix-supporting model at both the eastern Nankai Trough and the Mackenzie Delta areas. However, there were some error and difference with the Vp, Vs and Vp/Vs from the matrix-supporting model and real well sonic data between the eastern Nankai Trough and the Mackenzie Delta. We estimated the effect of Vp, Vs, and Vp/Vs for the change of clay content of matrix-supporting model. As the clay content decreases, the Vp and Vs increase, and Vp/Vs decreases. The clay content from well core data corresponds with the calculated Vp, Vs, and Vp/Vs as the function of the methane hydrate saturation and the clay content from the matrix supporting model. In case of the estimation of methane hydrate saturation from Vp, Vs, and Vp/Vs, we need to consider the geology, especially sand/clay ratio of the methane hydrate bearing layers."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410572172420994946","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000258016803"}],"foaf:name":[{"@language":"en","@value":"Hato Masami"},{"@language":"ja","@value":"羽藤 正実"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"京都大学"},{"@language":"en","@value":"Kyoto University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410572172420994945","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000258016804"}],"foaf:name":[{"@language":"en","@value":"Suzuki Kiyofumi"},{"@language":"ja","@value":"鈴木 清史"}],"jpcoar:affiliationName":[{"@language":"en","@value":"National Institute of Advanced Industrial Science and Technology"},{"@language":"ja","@value":"(独) 産業総合技術研究所"}]},{"@id":"https://cir.nii.ac.jp/crid/1410572172420994944","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000004626457"}],"foaf:name":[{"@language":"en","@value":"Saeki Tatsuo"},{"@language":"ja","@value":"佐伯 龍男"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Japan Oil, Gas and Metals National Corporation"},{"@language":"ja","@value":"(独) 石油天然ガス・金属鉱物資源機構"}]},{"@id":"https://cir.nii.ac.jp/crid/1410572172420994947","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Inamori Takao"},{"@language":"ja","@value":"稲盛 隆穂"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Japan Oil, Gas and Metals National Corporation"},{"@language":"ja","@value":"(独) 石油天然ガス・金属鉱物資源機構"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"03709868"},{"@type":"EISSN","@value":"18814131"},{"@type":"CODEN","@value":"SGKYAO"}],"prism:publicationName":[{"@language":"en","@value":"Journal of the Japanese Association for Petroleum Technology"},{"@language":"ja","@value":"石油技術協会誌"},{"@language":"en","@value":"J. JAPANESE. ASSOC. PETROL. TECHNOL."},{"@language":"en","@value":"J. Petroleum Tech."},{"@language":"ja","@value":"石技誌"}],"dc:publisher":[{"@language":"en","@value":"The Japanese Association for Petroleum Technology"},{"@language":"ja","@value":"石油技術協会"}],"prism:publicationDate":"2010","prism:volume":"75","prism:number":"1","prism:startingPage":"59","prism:endingPage":"71"},"reviewed":"false","availableAt":"2010","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=methane%20hydrate","dc:title":"methane hydrate"},{"@id":"https://cir.nii.ac.jp/all?q=rock%20physics%20model","dc:title":"rock physics model"},{"@id":"https://cir.nii.ac.jp/all?q=matrix%20supporting%20model","dc:title":"matrix supporting model"},{"@id":"https://cir.nii.ac.jp/all?q=clay%20content","dc:title":"clay content"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360285705214082816","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Chemo‐thermo‐mechanically coupled seismic analysis of methane hydrate‐bearing sediments during a predicted Nankai Trough Earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855570368957568","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Complete gas composition and isotopic geochemistry from the JAPEX/JNOC/GSC et al. Mallik 5L-38 \ngas hydrate production research well: cuttings, core, gas hydrate, and production testing results"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855570655347584","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Subsurface Occurrence of Natural Gas Hydrate in the Nankai Trough Area: Implication for Gas Hydrate Concentration"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699993760622208","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Detection and estimation of gas hydrates using rock physics and seismic inversion: Examples from the northern deepwater Gulf of Mexico"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699996492657920","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Elastic‐wave velocity in marine sediments with gas hydrates: Effective medium modeling"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981470014636544","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Detailed evaluation of gas hydrate reservoir properties using JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well downhole well-log displays"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981471330419072","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Scientific results from JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well, Mackenzie Delta, Northwest Territories, Canada"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544420701361024","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Gas composition and isotopic geochemistry of cuttings, core, and gas hydrate from the JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544421267553408","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Scientific results from JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well, Mackenzie Delta, Northwest Territories, Canada"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825893826795904","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Anomalous wave velocities in sediments containing gas hydrates"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894739499392","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well downhole well-log and core montages"}]},{"@id":"https://cir.nii.ac.jp/crid/1363388845103942144","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Estimating the amount of gas hydrate and free gas from marine seismic data"}]},{"@id":"https://cir.nii.ac.jp/crid/1363388845944988288","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Sediments with gas hydrates; internal structure from seismic AVO"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204062665856","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Seismic wave velocities and electric resistivities of core samples bearing methane hydrate"},{"@language":"ja","@value":"メタンハイドレートを胚胎するコア試料の弾性波と比抵抗特性"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204229372416","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"確率論的手法による東部南海トラフのメタンハイドレート資源量評価"},{"@language":"en","@value":"Resource Assessment of Methane Hydrate by Applying a Probabilistic Approach in the Eastern Nankai Trough, Japan"},{"@language":"ja-Kana","@value":"カクリツロンテキ シュホウ ニ ヨル トウブ ナンカイ トラフ ノ メタンハイドレート シゲンリョウ ヒョウカ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679038311168","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Estimation of Permeability of methane hydrate-bearing strata of Nankai Trough, in comparison to core measurement vs. CMR analysis."},{"@language":"ja","@value":"南海トラフメタンハイドレート堆積層の浸透率の推定―コア浸透率と検層結果比較"},{"@language":"ja-Kana","@value":"ナンカイ トラフメタンハイドレート タイセキソウ ノ シントウリツ ノ スイテイ コア シントウリツ ト ケンソウ ケッカ ヒカク"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:0034839279"},{"@type":"CROSSREF","@value":"10.3720/japt.75.59"},{"@type":"CIA","@value":"130004496457"},{"@type":"CROSSREF","@value":"10.1002/nag.2527_references_DOI_S4vTHMRY6243sNsLN0PoRsS6jSN"}]}