Factors influencing the porosity of gas hydrate bearing sediments
Porosity is a key parameter in calculating the velocity of gas hydrate bearing sediments and quantifying the amount of gas hy- drate. The variation of porosity is affected by many factors. The influences of different factors on porosity are distinct. The purpose of this paper is to analyze the main...
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| Veröffentlicht in: | Science China. Earth sciences 2013-04, Vol.56 (4), p.557-567 |
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| description | Porosity is a key parameter in calculating the velocity of gas hydrate bearing sediments and quantifying the amount of gas hy- drate. The variation of porosity is affected by many factors. The influences of different factors on porosity are distinct. The purpose of this paper is to analyze the main factors that affect the overall and local change of porosity in marine sediments where gas hydrate was sampled. Porosity logs were collected from ODP Leg 164, Blake Ridge, ODP Leg 204, Hydrate Ridge, and IODP expedition 311, Cascadia Margin. Based on the characteristic of porosity variation in depth, porosity was divided into three components： low frequency component, middle frequency component, and high frequency component. The factors influencing each component were discussed. From the analysis, we observed that the porosity of unconsolidated sediment was very high, and the decreasing trend of low frequency component versus depth was affected by compaction. In addition, the ini- tial porosity and slope of low frequency component variation were affected by the content of fine grain and geothermal gradi- ent respectively. The middle component could reflect the variation of lithology, which was affected by the content variation of different sized grains and gas hydrate. The high frequency component was affected by the frequent change of grain size. The existence of volcanic ash-rich sand caused a high value to the high frequency component. The results are applicable to porosity evaluation in gas hydrate bearing sediments. |
| doi_str_mv | 10.1007/s11430-012-4452-x |
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The variation of porosity is affected by many factors. The influences of different factors on porosity are distinct. The purpose of this paper is to analyze the main factors that affect the overall and local change of porosity in marine sediments where gas hydrate was sampled. Porosity logs were collected from ODP Leg 164, Blake Ridge, ODP Leg 204, Hydrate Ridge, and IODP expedition 311, Cascadia Margin. Based on the characteristic of porosity variation in depth, porosity was divided into three components： low frequency component, middle frequency component, and high frequency component. The factors influencing each component were discussed. From the analysis, we observed that the porosity of unconsolidated sediment was very high, and the decreasing trend of low frequency component versus depth was affected by compaction. In addition, the ini- tial porosity and slope of low frequency component variation were affected by the content of fine grain and geothermal gradi- ent respectively. The middle component could reflect the variation of lithology, which was affected by the content variation of different sized grains and gas hydrate. The high frequency component was affected by the frequent change of grain size. The existence of volcanic ash-rich sand caused a high value to the high frequency component. The results are applicable to porosity evaluation in gas hydrate bearing sediments.</description><identifier>ISSN: 1674-7313</identifier><identifier>EISSN: 1869-1897</identifier><identifier>DOI: 10.1007/s11430-012-4452-x</identifier><language>eng</language><publisher>Heidelberg: SP Science China Press</publisher><subject>Bearing ; Earth and Environmental Science ; Earth Sciences ; Gas hydrates ; Gases ; High frequencies ; IODP ; Lithology ; Low frequencies ; Marine sediments ; ODP ; Petrology ; Porosity ; Research Paper ; Sand ; Sedimentary geology ; Sediments ; 天然气水合物 ; 孔隙度测井 ; 影响因素 ; 气体水合物 ; 海洋沉积物 ; 频率成分 ; 高频分量</subject><ispartof>Science China. Earth sciences, 2013-04, Vol.56 (4), p.557-567</ispartof><rights>Science China Press and Springer-Verlag Berlin Heidelberg 2012</rights><rights>Science China Press and Springer-Verlag Berlin Heidelberg 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a431t-8588398be72b7b1e4a50f039f7e6e20c71611b63942cca3b1288c9c7303055ab3</citedby><cites>FETCH-LOGICAL-a431t-8588398be72b7b1e4a50f039f7e6e20c71611b63942cca3b1288c9c7303055ab3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/60111X/60111X.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11430-012-4452-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11430-012-4452-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>He, Jing</creatorcontrib><creatorcontrib>Liu, XueWei</creatorcontrib><creatorcontrib>Yu, Zhen</creatorcontrib><creatorcontrib>Xie, ChengLiang</creatorcontrib><creatorcontrib>Li, ZiWei</creatorcontrib><title>Factors influencing the porosity of gas hydrate bearing sediments</title><title>Science China. Earth sciences</title><addtitle>Sci. China Earth Sci</addtitle><addtitle>SCIENCE CHINA Earth Sciences</addtitle><description>Porosity is a key parameter in calculating the velocity of gas hydrate bearing sediments and quantifying the amount of gas hy- drate. The variation of porosity is affected by many factors. The influences of different factors on porosity are distinct. The purpose of this paper is to analyze the main factors that affect the overall and local change of porosity in marine sediments where gas hydrate was sampled. Porosity logs were collected from ODP Leg 164, Blake Ridge, ODP Leg 204, Hydrate Ridge, and IODP expedition 311, Cascadia Margin. Based on the characteristic of porosity variation in depth, porosity was divided into three components： low frequency component, middle frequency component, and high frequency component. The factors influencing each component were discussed. From the analysis, we observed that the porosity of unconsolidated sediment was very high, and the decreasing trend of low frequency component versus depth was affected by compaction. In addition, the ini- tial porosity and slope of low frequency component variation were affected by the content of fine grain and geothermal gradi- ent respectively. The middle component could reflect the variation of lithology, which was affected by the content variation of different sized grains and gas hydrate. The high frequency component was affected by the frequent change of grain size. The existence of volcanic ash-rich sand caused a high value to the high frequency component. The results are applicable to porosity evaluation in gas hydrate bearing sediments.</description><subject>Bearing</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Gas hydrates</subject><subject>Gases</subject><subject>High frequencies</subject><subject>IODP</subject><subject>Lithology</subject><subject>Low frequencies</subject><subject>Marine sediments</subject><subject>ODP</subject><subject>Petrology</subject><subject>Porosity</subject><subject>Research Paper</subject><subject>Sand</subject><subject>Sedimentary geology</subject><subject>Sediments</subject><subject>天然气水合物</subject><subject>孔隙度测井</subject><subject>影响因素</subject><subject>气体水合物</subject><subject>海洋沉积物</subject><subject>频率成分</subject><subject>高频分量</subject><issn>1674-7313</issn><issn>1869-1897</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqFkU1Lw0AQhoMoWGp_gLeIFy-rO7ub_TiWYlUoeNHzstlu2pQ0SXcTaP-9G1JEPOhcZmCed4aZN0luAT8CxuIpADCKEQaCGMsIOl4kE5BcIZBKXMaaC4YEBXqdzELY4Rg0doiYJPOlsV3jQ1rWRdW72pb1Ju22Lm0b34SyO6VNkW5MSLentTedS3Nn_MAEty73ru7CTXJVmCq42TlPk8_l88fiFa3eX94W8xUyjEKHZCYlVTJ3guQiB8dMhgtMVSEcdwRbARwg51QxYq2hORAprbKCYoqzzOR0mjyMc1vfHHoXOr0vg3VVZWrX9EEDZ4RQCYD_RylTLBOSDej9L3TX9L6Oh0SKUKWw5CRSMFI2PiV4V-jWl3vjTxqwHizQowU6WqAHC_QxasioCe3wMOd_TP5DdHdetG3qzSHqvjdFQHEuMP0C7neSOQ</recordid><startdate>20130401</startdate><enddate>20130401</enddate><creator>He, Jing</creator><creator>Liu, XueWei</creator><creator>Yu, Zhen</creator><creator>Xie, ChengLiang</creator><creator>Li, ZiWei</creator><general>SP Science China Press</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>M2P</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7ST</scope><scope>7U6</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20130401</creationdate><title>Factors influencing the porosity of gas hydrate bearing sediments</title><author>He, Jing ; Liu, XueWei ; Yu, Zhen ; Xie, ChengLiang ; Li, ZiWei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a431t-8588398be72b7b1e4a50f039f7e6e20c71611b63942cca3b1288c9c7303055ab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Bearing</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Gas hydrates</topic><topic>Gases</topic><topic>High frequencies</topic><topic>IODP</topic><topic>Lithology</topic><topic>Low frequencies</topic><topic>Marine sediments</topic><topic>ODP</topic><topic>Petrology</topic><topic>Porosity</topic><topic>Research Paper</topic><topic>Sand</topic><topic>Sedimentary geology</topic><topic>Sediments</topic><topic>天然气水合物</topic><topic>孔隙度测井</topic><topic>影响因素</topic><topic>气体水合物</topic><topic>海洋沉积物</topic><topic>频率成分</topic><topic>高频分量</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>He, Jing</creatorcontrib><creatorcontrib>Liu, XueWei</creatorcontrib><creatorcontrib>Yu, Zhen</creatorcontrib><creatorcontrib>Xie, ChengLiang</creatorcontrib><creatorcontrib>Li, ZiWei</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>Environment Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Science China. Earth sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>He, Jing</au><au>Liu, XueWei</au><au>Yu, Zhen</au><au>Xie, ChengLiang</au><au>Li, ZiWei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Factors influencing the porosity of gas hydrate bearing sediments</atitle><jtitle>Science China. Earth sciences</jtitle><stitle>Sci. China Earth Sci</stitle><addtitle>SCIENCE CHINA Earth Sciences</addtitle><date>2013-04-01</date><risdate>2013</risdate><volume>56</volume><issue>4</issue><spage>557</spage><epage>567</epage><pages>557-567</pages><issn>1674-7313</issn><eissn>1869-1897</eissn><abstract>Porosity is a key parameter in calculating the velocity of gas hydrate bearing sediments and quantifying the amount of gas hy- drate. The variation of porosity is affected by many factors. The influences of different factors on porosity are distinct. The purpose of this paper is to analyze the main factors that affect the overall and local change of porosity in marine sediments where gas hydrate was sampled. Porosity logs were collected from ODP Leg 164, Blake Ridge, ODP Leg 204, Hydrate Ridge, and IODP expedition 311, Cascadia Margin. Based on the characteristic of porosity variation in depth, porosity was divided into three components： low frequency component, middle frequency component, and high frequency component. The factors influencing each component were discussed. From the analysis, we observed that the porosity of unconsolidated sediment was very high, and the decreasing trend of low frequency component versus depth was affected by compaction. In addition, the ini- tial porosity and slope of low frequency component variation were affected by the content of fine grain and geothermal gradi- ent respectively. The middle component could reflect the variation of lithology, which was affected by the content variation of different sized grains and gas hydrate. The high frequency component was affected by the frequent change of grain size. The existence of volcanic ash-rich sand caused a high value to the high frequency component. The results are applicable to porosity evaluation in gas hydrate bearing sediments.</abstract><cop>Heidelberg</cop><pub>SP Science China Press</pub><doi>10.1007/s11430-012-4452-x</doi><tpages>11</tpages></addata></record> |
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| subjects | Bearing Earth and Environmental Science Earth Sciences Gas hydrates Gases High frequencies IODP Lithology Low frequencies Marine sediments ODP Petrology Porosity Research Paper Sand Sedimentary geology Sediments 天然气水合物 孔隙度测井 影响因素 气体水合物 海洋沉积物 频率成分 高频分量 |
| title | Factors influencing the porosity of gas hydrate bearing sediments |
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